What Is the Difference Between Class 1 Div 1 and Class 1 Div 2 ?

Posted on March 31, 2023 by KimGuo11

Welcome to our comprehensive guide on understanding Class 1 Div 1 and Class 1 Div 2 hazardous location classifications. In many industries, dealing with hazardous environments is an essential aspect of ensuring workplace safety. Proper classification of these locations is crucial to mitigate risks and prevent accidents.

In this guide, we will delve into the differences between these two classifications, their significance, and protection methods used to ensure the safety of both employees and equipment. Our goal is to provide you with a clear understanding of these essential safety measures and their role in various industries.

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Difference Between Class 1 Div 1 and Class 1 Div 2

Featured Explosion-proof instruments

**Explosion-proof Pressure Transmitter**

**High-Temperature Pressure Transmitter**

Class 1: Flammable Gases, Vapors, and Liquids

Definition and Characteristics of Class 1 Locations

Class 1 hazardous locations are areas where flammable gases, vapors, or liquids exist or have the potential to exist under normal operating conditions. These substances pose a risk of explosion or fire if they come into contact with an ignition source, such as a spark or high temperature.

The primary factor that defines a Class 1 location is the presence of flammable materials in the atmosphere. Which can be further divided into Divisions and Groups based on the likelihood and nature of the hazardous substances.

Common Examples of Class 1 Environments

A wide range of industries and applications may involve Class 1 hazardous locations. Some common examples include:

Oil and Gas Industry: Oil refineries, drilling platforms, and processing plants often involve the production, storage, and handling of flammable gases and liquids.
Chemical and Petrochemical Industry: Facilities that produce, store, or handle flammable chemicals or solvents can create hazardous environments due to the presence of flammable vapors.
Pharmaceutical Industry: The manufacturing and processing of pharmaceuticals may involve the use of flammable solvents or chemicals, creating potential Class 1 locations.
Fuel Storage and Distribution: Facilities for storing and distributing fuels such as gasoline, diesel, or aviation fuel are likely to have Class 1 locations due to the flammability of these substances.
Paint Manufacturing and Application: The production and application of paints and coatings may involve flammable solvents or vapors, which can create hazardous environments.
Wastewater Treatment Plants: The presence of methane gas produced during the decomposition of organic matter can result in Class 1 locations in certain areas of wastewater treatment plants.

It is important to note that not all areas within these industries or facilities are classified as Class 1 hazardous locations. The specific classification depends on factors such as the type and concentration of flammable substances and the likelihood of their presence under normal operating conditions.

Definition and Criteria for Class 1 Div 1 Classification

Class 1 Division 1 (Class 1 Div 1) locations are hazardous areas where flammable gases, vapors, or liquids are present or likely to be present continuously, intermittently, or periodically during normal operations.

The key factor differentiating Class 1 Div 1 from Class 1 Div 2 locations is the higher probability of hazardous substances being present, which results in a greater risk of explosion or fire. In these environments, special safety measures and equipment are required to prevent accidents and protect workers.

Definition and criteria for Class 1 Div 2 classification

Class 1 Division 2 (Class 1 Div 2) locations are hazardous areas where flammable gases, vapors, or liquids are not typically present during normal operations. But may exist under abnormal conditions, such as equipment failures, leaks, or process upsets.

The main difference between Class 1 Div 1 and Class 1 Div 2 locations is the lower likelihood of flammable substances being present in Class 1 Div 2 environments. Despite the lower risk, safety precautions and specialized equipment are still necessary to prevent accidents and protect workers in these areas.

Class 1 Div 2 locations can also be areas adjacent to Class 1 Div 1 locations where flammable substances might escape due to a failure in a containment system or during maintenance activities. In these cases, the hazardous materials are not expected to be present in concentrations that pose a risk of ignition under normal operating conditions, but the potential for their presence still warrants the classification as Class 1 Div 2.

Difference Between Class 1 Div 1 and Class 1 Div 2

The primary difference between Class 1 Div 1 and Class 1 Div 2 locations lies in the risk levels associated with the presence of flammable substances.

Class 1 Div 1 locations have a higher likelihood of flammable gases, vapors, or liquids being present during normal operations, resulting in a greater risk of explosion or fire.

In contrast, Class 1 Div 2 locations are areas where flammable substances are not typically present during normal operations but may exist under abnormal conditions, such as equipment failures or leaks.

The definitive reference is the National Electrical Code Chapter 5.

Due to the differences in risk levels, the protection methods employed in Class 1 Div 1 and Class 1 Div 2 locations also vary.

Some common distinctions in protection methods include:

Explosion-proof enclosures: Used in Class 1 Div 1 locations, these enclosures are designed to withstand an internal explosion and prevent the ignition of flammable substances in the surrounding atmosphere. In Class 1 Div 2 locations, explosion-proof enclosures are not always necessary, as the risk of explosion is lower.

Intrinsic safety: Intrinsic safety measures, such as limiting electrical energy to levels below the ignition threshold, are more commonly applied in Class 1 Div 1 locations due to the higher risk. While these measures can also be used in Class 1 Div 2 locations, other protection methods. Such as non-incendive equipment, may be more appropriate.

Non-incendive equipment: Used primarily in Class 1 Div 2 locations, non-incendive equipment is designed to prevent sparks or high temperatures that could ignite flammable substances under normal operating conditions. This equipment may not be suitable for Class 1 Div 1 locations due to the higher risk levels.

explosion proof enclosure

You also need to consider explosion-proof requirements when purchasing instruments. For example, our pressure transmitters, flow meters, level meters, etc. all have explosion-proof standards. Explosion-proof products will also be equipped with explosion-proof casings. The explosion-proof instrument housings provided by Sino-Inst generally have the “EX” explosion-proof mark.

Explosion-proof enclosures should obtain appropriate certifications, such as ATEX (Europe), IECEx (International), NEC/CEC (North America), to ensure that they can be used safely in specific hazardous environments.

Explosion-proof shells usually adopt one of the following explosion-proof principles:

Explosionproof type (Ex d): Able to withstand the pressure of internal explosions and prevent internal explosions from igniting gases in the external environment.
Increased safety type (Ex e): non-spark design, its structure ensures sufficient safety increment to prevent ignition of surrounding explosive gases.
Intrinsically safe (Ex i): Ensures that any electrical equipment in the circuit will not produce sparks or thermal effects sufficient to ignite surrounding gases.
Positive pressure type (Ex p): By maintaining the pressure inside the casing higher than the surrounding environment, it prevents harmful gases from entering the inside of the casing.
Non-ignition type (Ex n): Designed to ensure that it will not ignite surrounding explosive mixtures under normal operating conditions.

Condensate Flow Meter-Steam Condensate Flow Meter|Types & Selection Guide

Posted on March 31, 2023 by KimGuo11

Condensate flow meters are essential tools designed to measure the flow of steam condensate in various systems and applications. The accurate measurement of condensate flow can eliminate blind spots in your plant and enable problem solving. These meters play a crucial role in managing energy consumption and optimizing system efficiency.

RFQ Flow Meters

Importance of Measuring Condensate Flow

Measuring condensate flow is vital for several reasons.

First and foremost, it enables efficient energy management by monitoring the amount of energy being utilized in various processes.

Furthermore, measuring condensate flow is crucial for maintaining the safety and integrity of equipment, as it allows for early detection of issues such as leaks or blockages.

Lastly, monitoring condensate flow aids in regulatory compliance by adhering to environmental and industry-specific standards, promoting sustainable and responsible practices.

Technical difficulties in condensate flow measurement

Customers frequently need to measure the flow rate of condensate water returning from boiler systems or hot water pipelines. Such applications present unique characteristics:

High water temperature: The flow meter sensor must be capable of withstanding temperatures around 150℃ (302℉).
Low conductivity or demineralized water: Magnetic flow meters are unsuitable due to their requirement for conductive fluids.
Pressure and Temperature Variations: Fluctuations in pressure and temperature can significantly impact the density and viscosity of the condensate, making it difficult to achieve consistent measurements.
Installation Constraints: Proper installation is crucial for accurate flow measurement, but space limitations, pipe orientation, and varying pipe sizes can pose challenges.
Scale and Corrosion: Over time, scale buildup and corrosion can impact the performance of flow meters.
Fluid Properties: The properties of steam condensate, such as its conductivity, viscosity, and chemical composition, can impact the performance of certain flow meter technologies.

Types of Condensate Flow Meters

There are several types of condensate flow meters available, each with its unique working principle and suitability for specific applications. Some of the most common types include:

Each type of condensate flow meter has its advantages and limitations, so it is critical to select the right flow meter based on factors such as fluid properties, operating conditions, and application requirements.

Applications and Industries

Condensate flow meters find use in a wide range of applications and industries, some of which include:

Power Generation: Condensate flow meters are indispensable in power plants. Where they help optimize boiler efficiency, minimize energy waste, and ensure safe and reliable operations.
Petrochemical and Refining: These meters are used to monitor steam condensate in processes. Such as distillation, cracking, and reforming, ensuring energy efficiency and maintaining the quality of the final products.
HVAC Systems: In heating, ventilation, and air conditioning systems, condensate flow meters help manage energy consumption and maintain a comfortable indoor environment.
Food and Beverage: The meters are employed in processes such as pasteurization and sterilization. Where precise steam flow control is essential for maintaining product quality and safety.
Pharmaceuticals: Condensate flow meters play a crucial role in maintaining the stringent temperature and pressure requirements of various pharmaceutical processes, ensuring product purity and consistency.
Pulp and Paper: In this industry, condensate flow meters help optimize energy usage during processes. Like drying and steam generation, ultimately improving productivity and reducing costs.

These are just a few examples of the diverse applications and industries that benefit from the accurate measurement and monitoring provided by condensate flow meters.

If you are working on the optimization of the above industry applications. Then it is very important to choose the right condensate flow meters or steam condensate flow meters.

Selection Guide

Steps	Description	Details
1.	Understand your application	Identify specific requirements, including flow rate range, operating temperature and pressure, fluid properties, and accuracy needs.
2.	Assess available technologies	Familiarize yourself with flow meter technologies (differential pressure, vortex, ultrasonic, turbine) and their suitability for steam condensate applications.
3.	Condensate water flow meter functions	– Digital display to show instant flow and total flow – 4-20mA current output or pulse output – RS 485 Modbus RTU functions – Hart Protocol – Battery powered or 24V DC or 220V AC power supply
4.	Evaluate installation constraints	Consider installation requirements, including straight pipe runs, mounting orientation, available space, and accessibility for maintenance.
5.	Factor in maintenance and cost	Assess the total cost of ownership, including initial investment, installation, calibration, and maintenance expenses. Choose a cost-effective and easy-to-maintain flow meter.
6.	Consult an expert	Reach out to a professional flow meter supplier or manufacturer with experience in steam condensate applications, such as Sino-Inst. Seek guidance and recommendations based on your needs and preferences.
7.	Select and install the flow meter	Determine the most suitable condensate flow meter, and ensure proper installation and calibration according to the manufacturer’s guidelines. Crucial for obtaining accurate and reliable flow measurements.

Frequently
Asked
Questions

Help Center

The best flow meter for steam condensate depends on the specific application, fluid properties, and operating conditions.

Commonly used options include differential pressure flow meters (orifice plate, venturi, and flow nozzle), vortex flow meters, ultrasonic flow meters, and turbine flow meters.

It is essential to assess the requirements of your application before selecting the most suitable flow meter.

Condensate flow can be measured using various flow meters, such as differential pressure, vortex, ultrasonic, or turbine flow meters. The chosen flow meter should be installed correctly and calibrated to provide accurate measurements. Factors such as fluid properties, pressure, temperature, and flow rate should be considered when selecting the appropriate meter.

Steam flow in a pipe can be measured using several flow meters designed for high temperatures and pressure conditions. Common options include differential pressure flow meters (orifice plate, venturi, and flow nozzle), vortex flow meters, and Coriolis mass flow meters. Proper installation, calibration, and consideration of the fluid properties and operating conditions are crucial for accurate measurements.

A steam flow meter measures the flow rate of steam in a pipeline, helping to optimize energy consumption, maintain equipment safety and integrity, and comply with environmental and industry-specific standards. The meter provides real-time data to monitor, control, and improve steam-related processes in various industries and applications.

For steam measurement, differential pressure flow meters (orifice plate, venturi, and flow nozzle), vortex flow meters, and Coriolis mass flow meters are commonly used. The choice depends on factors such as the steam’s properties, pressure and temperature conditions, accuracy requirements, and the specific application.

0-10v Pressure Transducers | 3 or 4 Wire Configuration

Posted on March 30, 2023 by KimGuo11

0-10V pressure transducers with their 3 or 4 wire configurations, work tirelessly to monitor and control water pressure gauges, air pressure, vacuum pressure, and more.

Whether it’s a 10 bar absolute pressure or delicate differential pressure, these transducers can handle it all. As they convert psi into a voltage output signal, they bridge the gap between the tangible world and the realm of digital communication.

RFQ Pressure Transducers

What is 0-10V signal output?

A 0-10V signal output is a method of electrical communication that utilizes voltage levels ranging from 0 volts to 10 volts to represent specific values within a given measurement scale. This standardized analog communication allows devices to convey information through varying voltage signals, facilitating seamless data exchange and interpretation in various applications.

**SI-350 Sanitary Pressure Transmitter**

**SI-300 Pressure Transducer 4-20mA/Voltage**

**SI-390 Industrial Pressure Transmitter**

**High Frequency Dynamic Pressure Sensor**

**SI-706 Combined Pressure and Temperature Sensor-Dual function**

**SI-512H High Temperature Pressure Sensor**

What are 0-10V Pressure Transducers?

0-10V pressure transducers are devices that measure pressure changes in various environments, such as water, air, or vacuum. These transducers convert the pressure variations they detect into a 0-10V analog signal output, which corresponds to the measured pressure values. This standardized output allows for easy integration and communication with other devices, making 0-10V pressure transducers valuable tools in a wide range of applications.

Featured 0-10V Pressure Transducers Parameters

Range:	0 ～ 1KPa ～ 10KPa ～ 400KPa, -0.1 ～ 0 ～ 1 ～ 60 (MPa), 0 ～ 10KPa ~ 100MPa, High pressure 700MPa can be customized;
Comprehensive accuracy:	0.25% FS, 0.5% FS
Output signal:	4-20mA (2-wire system), 0-5 / 1-5 / 0-10V (3-wire system)
Power supply voltage:	24DCV (9 ～ 36DCV)
Medium temperature:	-30 ℃ ～ 160-350 ℃, customized up to 800 ℃.
Ambient temperature:	Normal temperature (-20 ～ 85 ℃)
Load resistance:	Current output type: maximum 800Ω; voltage output type: greater than 50KΩ
Insulation resistance:	Greater than 2000MΩ (100VDC)
Long-term stability:	0.1% FS / year
Vibration effect:	In the mechanical vibration frequency 20Hz ～ 1000Hz, the output change is less than 0.1% FS
Electrical interface:	Hessman connector (customizable)
Thread connection:	M20 × 1.5, etc. Other threads can be designed according to customer requirements
Dimensions:	M20 × Φ26.5 × 156
Shell protection:	Plug type (IP65); cable type (IP67)
Safety explosion-proof:	Ex iaⅡ CT5

Read more about: Common Units Of Pressure

Checklist for 0-10v Pressure Transducers?

Use this comprehensive checklist to define your 0-10V output signal pressure transducer requirements, ensuring that you select the perfect device for your needs:

Pressure Range: What is the minimum and maximum pressure you need to measure?
Output Signal: Confirm that the desired output signal is 0-10 volts.
Accuracy: What level of precision do you require from the transducer?
Electrical Connection: Which type of electrical connection suits your application? (e.g., cable, connector, terminal block)
Process Connection: What kind of process connection is needed to integrate the transducer into your system? (e.g., threaded, flanged)
Process Media Type: What type of media will the transducer be exposed to? (e.g., air, water, gas, or corrosive substances)
Temperature Range: What are the minimum and maximum temperatures that the transducer must be able to withstand and operate effectively in?

By carefully considering each aspect of this checklist, you’ll be well-equipped to select the ideal 0-10V pressure transducer for your specific application.

Frequently
Asked
Questions

Help Center

To zero a pressure transducer, follow these steps:

Disconnect the transducer from any pressure source.
Power the transducer and wait for it to stabilize.
Observe the output signal (usually voltage or current) while it’s at atmospheric pressure.
Adjust the zero-offset setting on the transducer, or in the connected system, until the output signal corresponds to zero pressure.

A pressure-to-voltage transducer, such as a 0-10V pressure transducer, is designed to convert pressure measurements into a proportional voltage output signal. These transducers utilize various sensing technologies, like piezoresistive, capacitive, or strain gauge elements, to detect pressure changes and generate corresponding voltage signals.

The terms “pressure sensor” and “pressure transducer” are often used interchangeably, but there can be subtle differences.

A pressure sensor is a general term for any device that detects pressure changes, while a pressure transducer specifically converts those pressure changes into an electrical output signal, such as voltage or current.

A pressure transmitter and a pressure transducer both convert pressure measurements into electrical output signals. The primary difference is that a pressure transmitter typically generates a standardized output signal, such as a 4-20mA current loop, which is less susceptible to electrical noise and allows for longer transmission distances.

A pressure transducer, on the other hand, often generates voltage output signals, such as a 0-10V signal, which may be more susceptible to noise but are more straightforward to integrate with various devices and systems.

Unraveling the Pressure Puzzle: Absolute Pressure vs Gauge Pressure

Posted on March 29, 2023 by KimGuo11

Absolute Pressure vs Gauge Pressure is a critical distinction to understand in fields like fluid mechanics and various industrial applications. Absolute pressure refers to the measurement against a vacuum or absolute zero pressure, while gauge pressure represents the difference between atmospheric pressure and the pressure being measured.

The easiest way to distinguish between these two pressures is by their zero points: absolute pressure uses absolute zero as its reference, whereas gauge pressure considers atmospheric pressure as its starting point. As atmospheric pressure can vary, gauge pressure measurements may not be precise. In contrast, absolute pressure remains consistent and definitive.

RFQ Pressure Sensors

Knowing the relationship between these two pressures, defined by a formula that factors in the reference pressure, is essential. This understanding allows for accurate use of relative pressure sensors, vacuum pressure formulas, and differential pressure measurement techniques in a wide array of practical situations.

Absolute Pressure

What is absolute pressure?

Absolute pressure is the total pressure exerted by a fluid or gas, measured against a complete vacuum or absolute zero pressure. In other words, it is the sum of the gauge pressure and atmospheric pressure. It is denoted with the subscript “abs”: P_abs.

It is an essential parameter in various scientific and engineering applications where the pressure relative to an absolute vacuum is vital. In order to produce an absolute pressure sensor the manufacturer will seal a high vacuum behind the sensing diaphragm. Therefore if you hold open the process pressure connection of an absolute pressure transmitter to the air it will read the actual barometric pressure.

Units of absolute pressure

Absolute pressure is typically measured in units like Pascals (Pa), pounds per square inch absolute (psia), or bars (bar). Other units used include millimeters of mercury (mmHg) and atmospheres (atm). It is crucial to use the appropriate units when working with absolute pressure to ensure accurate measurements and calculations. Read more about: Common Units Of Pressure.

Gauge Pressure

What is gauge pressure?

Gauge pressure is the difference between the pressure of a fluid or gas and the local atmospheric pressure. It is denoted with the subscript “e”: Pe and is calculated as follows: Pe = Pabs – Pamb.

It represents the pressure relative to the ambient environment, which is why it is commonly used in everyday applications.

Gauge pressure can be either positive, when the pressure being measured is higher than atmospheric pressure, or negative, when the pressure is lower than atmospheric pressure (also known as vacuum pressure).

Units of gauge pressure

Gauge pressure is typically measured in units like Pascals (Pa), pounds per square inch gauge (psig), or bars (bar). Other units used include inches of water column (inH2O) and millimeters of mercury (mmHg). It is essential to use the appropriate units when working with gauge pressure to ensure accurate measurements and calculations.

Absolute Pressure vs Gauge Pressure

The difference between absolute and gauge pressure

The primary difference between absolute and gauge pressure lies in their reference points. Absolute pressure is measured against a complete vacuum or absolute zero pressure, whereas gauge pressure is measured relative to the local atmospheric pressure.

As a result, absolute pressure represents the total pressure exerted by a fluid or gas, while gauge pressure indicates the pressure difference between the fluid or gas and the surrounding atmosphere.

The significance of atmospheric pressure

Atmospheric pressure plays a crucial role in understanding the difference between absolute and gauge pressure. It is the pressure exerted by the weight of the air above a given point on the Earth’s surface.

Since atmospheric pressure varies with altitude, weather conditions, and temperature, gauge pressure measurements can also vary under different conditions.

Understanding atmospheric pressure is essential for accurately interpreting gauge pressure measurements and converting between absolute and gauge pressure.

Formula for converting between absolute and gauge pressure

To convert between absolute and gauge pressure, you can use the following formula:

Absolute Pressure = Gauge Pressure + Atmospheric Pressure

Absolute pressure-Gauge pressure Converter

Pressure Unit Converter

Liquid Depth/Level to Hydrostatic Pressure Calculator

This formula illustrates the relationship between the two types of pressure and accounts for the local atmospheric pressure. By using this formula, you can easily convert gauge pressure measurements to absolute pressure and vice versa, enabling better decision-making and accuracy in various applications.

When should you measure absolute and gauge pressure?

Deciding whether to use absolute or gauge pressure measurement depends on the specific application.

Generally, if you need to measure or control a pressure affected by changes in atmospheric pressure. Such as liquid levels in an open tank or the output pressure of an air compressor, a vented gauge pressure instrument is suitable, as it provides readings without the atmospheric pressure component.

On the other hand, if you want to measure pressures unaffected by atmospheric pressure changes, for example, leak testing a completely sealed, non-flexible container, an absolute pressure sensor is appropriate. Using a gauge pressure sensor in this case would result in fluctuating readings due to changes in barometric pressure, even though the container’s actual pressure remains constant.

Absolute Pressure vs Gauge Pressure Measuring Instruments

There is a difference between instruments that measure absolute pressure and gauge pressure. Such as pressure gauges, pressure transmitters. When we purchase pressure and gauge pressure instruments, we must inform the manufacturer whether you are measuring gauge pressure or absolute pressure.

Generally, Sino-Inst’s pressure transmitter defaults to gauge pressure.

**Diffused silicon Gauge Pressure Transmitter**

**Capacitive Gauge Pressure Transmitter**

Frequently
Asked
Questions

Help Center

The relation between gauge pressure and absolute pressure is that gauge pressure is measured relative to the local atmospheric pressure, while absolute pressure is measured against a complete vacuum or absolute zero pressure. Absolute pressure is the sum of gauge pressure and atmospheric pressure.

To convert gauge pressure to absolute pressure, use the following formula:

Absolute Pressure = Gauge Pressure + Atmospheric Pressure

This formula accounts for the local atmospheric pressure and allows for an easy conversion between the two pressure types.

Absolute pressure is usually higher than gauge pressure because it includes atmospheric pressure in addition to the pressure being measured. However, in cases where gauge pressure is negative (i.e., a vacuum or pressure lower than atmospheric pressure), absolute pressure can still be lower than atmospheric pressure.

An example that demonstrates the difference between absolute and gauge pressure is the pressure inside a sealed, non-flexible container.

The absolute pressure inside the container is the total pressure exerted by the gas, while the gauge pressure is the difference between the pressure inside the container and the atmospheric pressure outside. If the container were sealed at sea level with an internal pressure of 2 atmospheres, the gauge pressure would be 1 atmosphere (assuming the atmospheric pressure outside the container is also 1 atmosphere).

To calculate the gauge pressure when given the absolute pressure, you need to subtract the atmospheric pressure from the absolute pressure. Assuming standard atmospheric pressure is 1 atm:

Gauge Pressure = Absolute Pressure – Atmospheric Pressure

Gauge Pressure = 16 atm – 1 atm = 15 atm

So, the gauge pressure is 15 atm.

Exploring Common Units of Pressure: A Comprehensive Guide

Posted on March 27, 2023 by KimGuo11

Understanding common units of pressure is crucial in various fields, such as chemistry, physics, and engineering. Pressure is a fundamental concept that plays a vital role in processes involving gas, vacuum, and fluid systems. With numerous units available, such as Pascal (Pa), millimeters of mercury (mmHg), pound per square inch (psi), and torr, it’s essential to know their conversion relationships.

In this guide, we will explore the most commonly used pressure measurement units and their conversion relationships, making it easier for you to convert values across different applications.

RFQ Pressure Sensors

Common Units of Pressure

The SI Unit for Pressure: The Pascal

The Pascal (Pa) is the SI (International System of Units) unit for pressure, named after the French mathematician and physicist Blaise Pascal.

One Pascal is defined as the pressure of one newton per square meter (N/m²).

It represents the force applied uniformly over a unit area, making it an essential unit for quantifying pressure in various scientific and engineering applications.

Exploring Non-SI Units of Pressure

Pounds per square inch (PSI) is a non-SI unit of pressure commonly used in the United States and the United Kingdom.
It measures the force in pounds (lbs) applied to a square inch of surface area.
Originating from the customary system of units, PSI is widely recognized and employed in various industries as a convenient alternative to the Pascal.

The bar is a non-SI unit of pressure, where one bar is equal to 100,000 Pascals or approximately equal to the atmospheric pressure at sea level.
The term “bar” comes from the Greek word “baros,” which means weight.
A smaller unit derived from the bar is the millibar (mbar), with one bar being equivalent to 1,000 millibars.
Millibars are commonly used to represent smaller pressure variations.

An atmosphere (atm) is a non-SI unit of pressure, used to represent the average atmospheric pressure at sea level on Earth. One atmosphere is defined as 101,325 Pascals. The unit was established to provide a convenient and relatable reference point for pressure measurements in various scientific and engineering applications.

Inches of mercury (inHg) and millimeters of mercury (mmHg) are non-SI units of pressure, based on the height of a column of mercury in a barometer.

One inch of mercury is equivalent to the pressure exerted at the base of a column of mercury exactly one inch high at 0°C, whereas one millimeter of mercury corresponds to a mercury column exactly one millimeter high at the same temperature.
One inch of mercury equals 25.4 millimeters of mercury, or approximately 3,386.39 Pascals.

These units originated from the use of mercury barometers, invented by Italian scientist Evangelista Torricelli in the 17th century, to measure atmospheric pressure.

Inches of water column (inWC) and millimeters of water column (mmWC) are non-SI units of pressure that express the pressure exerted at the base of a column of water.

One inch of water column is equal to the pressure at the base of a water column exactly one inch high at 4°C, while one millimeter of water column corresponds to a water column exactly one millimeter high at the same temperature. One inch of water column is approximately equal to 249.089 Pascals.

These units have been used to measure pressure since the early days of fluid mechanics and are particularly useful in applications where low-pressure differentials are involved.

The torr is a non-SI unit of pressure, named in honor of the Italian physicist Evangelista Torricelli, who invented the mercury barometer. One torr is defined as 1/760 of an atmosphere, which is approximately equal to 133.32 Pascals.
A smaller unit derived from the torr is the millitorr (mTorr), with one torr being equivalent to 1,000 millitorr.
Torr and millitorr units are primarily used for measuring low-pressure environments, such as those found in vacuum systems.

**Hygienic / Sanitary Pressure Transmitter**

**Remote Diaphragm Seal Pressure Transmitter**

Conversion Relationships Between Pressure Units

Pascal to PSI Conversion

To convert pressure values from Pascals (Pa) to pounds per square inch (PSI), you can use the following formula:

1 Pa = 0.0001450377377 PSI

To convert from Pascals to PSI, simply multiply the pressure value in Pascals by the conversion factor:

Pressure (PSI) = Pressure (Pa) × 0.0001450377377

Bar to PSI Conversion

To convert pressure values from bars to PSI, you can use the following formula:

1 bar = 14.503773773 PSI

To convert from bars to PSI, simply multiply the pressure value in bars by the conversion factor:

Pressure (PSI) = Pressure (bars) × 14.503773773

Atmospheres to Pascal Conversion

To convert pressure values from atmospheres (atm) to Pascals (Pa), you can use the following formula:

1 atm = 101,325 Pa

To convert from atmospheres to Pascals, simply multiply the pressure value in atmospheres by the conversion factor:

Pressure (Pa) = Pressure (atm) × 101,325

Inches of Mercury to Millimeters of Mercury Conversion

To convert pressure values from inches of mercury (inHg) to millimeters of mercury (mmHg), you can use the following formula:

1 inHg = 25.4 mmHg

To convert from inches of mercury to millimeters of mercury, simply multiply the pressure value in inches of mercury by the conversion factor:

Pressure (mmHg) = Pressure (inHg) × 25.4

Inches of Water Column to PSI Conversion

To convert pressure values from inches of water column (inWC) to pounds per square inch (PSI), you can use the following formula:

1 inWC = 0.0361272918 PSI

To convert from inches of water column to PSI, simply multiply the pressure value in inches of water column by the conversion factor:

Pressure (PSI) = Pressure (inWC) × 0.0361272918

Extended reading: what is a pressure transducer?

pressure conversion chart

Pressure Unit	Abbr.	psi	atm	inH2O	cmH2O	kg/cm²	mmHg	cmHg	mbar	Pa	kPa	MPa
Pounds per Square Inch	psi	1	0.068	27.68	70.31	0.07031	51.71	5.171	68.95	6895	6.895	0.006895
Atmospheres	atm	14.7	1	406.8	1033.29	1.0332	760	76	1013.25	101325	101.325	0.101325
Inches of Water	inH2O	0.0361	0.00254	1	2.54	0.00254	1.868	0.1868	2.491	249.1	0.2491	0.0002491
Centimeters of Water	cmH2O	0.01422	0.001	0.3937	1	0.001	0.7353	0.07353	0.9807	98.07	0.09807	0.00009807
Kilograms per Square Centimeter	kg/cm²	14.223	0.9678	393.7	1000	1	735.6	73.56	980.7	98000	98	0.098
Millimeters of Mercury (Torr)	mmHg	0.01934	0.001316	0.5353	1.36	0.00136	1	0.1	1.333	133.3	0.1333	0.0001333
Centimeters of Mercury	cmHg	0.1934	0.01316	5.353	13.6	0.0136	10	1	13.33	1333	1.333	0.001333
Millibar	mbar	0.0145	0.0009869	0.4015	1.0197	0.00102	0.7501	0.07501	1	100	0.1	0.0001

Conversion Examples and Calculations

Here are three examples of converting pressure units using the pressure conversion chart provided earlier:

Example 1: Converting 0.5 PSI to Inches Water Column

From the table, we know that 1 PSI = 27.7076 inH₂O. To convert 0.5 PSI to inches of water column, we can use the following equation:

0.5 PSI * (27.7076 inH₂O / 1 PSI) = 13.8538 inH₂O

So, 0.5 PSI is approximately equal to 13.8538 inches of water column.

Example 2: Converting 100 kPa to Bar

From the table, we know that 1 kPa = 0.01 Bar. To convert 100 kPa to Bar, we can use the following equation:

100 kPa * (0.01 Bar / 1 kPa) = 1 Bar

So, 100 kPa is equal to 1 Bar.

Example 3: Converting 760 Torr to Atmospheres

From the table, we know that 1 atm = 760 Torr. To convert 760 Torr to atmospheres, we can use the following equation:

760 Torr * (1 atm / 760 Torr) = 1 atm

So, 760 Torr is equal to 1 atmosphere.

Frequently
Asked
Questions

Help Center

To convert PSI to kPa, use the conversion factor from the pressure conversion chart: 1 PSI = 6.89476 kPa. Multiply the PSI value by 6.89476 to get the equivalent value in kPa. To convert kPa to PSI, divide the kPa value by 6.89476.

Gauge pressure is the pressure relative to the atmospheric pressure, whereas absolute pressure is the pressure measured with respect to a perfect vacuum. Gauge pressure is the pressure value most commonly encountered in everyday situations, while absolute pressure is used in scientific and engineering calculations.

Yes, some pressure units are more common in specific industries. For example, inches of water column (inWC) and millimeters of water column (mmWC) are widely used in HVAC and plumbing. Similarly, inches and millimeters of mercury (inHg and mmHg) are commonly used in medical and meteorological fields.

Air Flow Measurement Instruments for Industrial Harsh Conditions

Posted on March 26, 2023 by KimGuo11

Air flow measurement instruments play a critical role in various industrial applications, including managing compressed air systems, ensuring process efficiency, and maintaining optimal flow rates. These devices measure the flow of air in ducts, pipes, and other conduits, enabling it industries to control essential operations.

However, harsh industrial environments can present unique challenges that demand specialized, ruggedized instruments capable of withstand extreme conditions. Let us see how we can choose the right instrument.

RFQ Flow Meters

Importance of Air Flow Measurement

Monitoring air duct flow in industrial processes is super important for a variety of reasons. Let’s take a look at some of the key benefits of keeping an eye on air flow in your facility:

Optimizing performance: When you’re on top of your air duct flow, you can be sure that your equipment is working at its best. This means you’re getting the most bang for your buck, and who doesn’t want that?

Avoiding nasty surprises: Nobody likes unexpected problems, especially in an industrial setting. By monitoring air duct flow, you can spot issues before they become big headaches and fix them before they cause costly downtime.

Energy efficiency: Keeping track of air flow helps you use energy more efficiently, reducing waste and lowering those energy bills. It’s a win-win！

Process efficiency: Measuring air flow helps to detect any changes or issues early on, making it easier to fine-tune processes and avoid costly downtime.

Energy savings: By keeping an eye on air flow rates, you can optimize energy usage and minimize waste. This not only saves you money on energy bills, but also contributes to a more sustainable and eco-friendly operation.

Safety first: In any workplace, the safety of your team is the top priority. Monitoring air duct flow can help prevent accidents and ensure a healthier work environment by making sure there’s proper ventilation and that air quality stays in check.

Regulatory compliance: Industrial facilities often need to follow strict rules when it comes to emissions and air quality. Staying on top of your air duct flow means you’re in a better position to meet those regulations and avoid any penalties.

So, Keep an eye on that air flow, and your facility will be in great shape.

But this process of monitoring is not always easy. We will always encounter some special working conditions.

Harsh Industrial Conditions

Dealing with harsh industrial conditions can be a real challenge. These tough environments can put a lot of stress on your equipment, including air flow measurement instruments. Let’s break down some of the most common harsh conditions you might face:

Extreme temperatures:

Many air flow measurement instruments are designed to operate within a temperature range of -40 to 100°C.

However, in some industrial settings, temperatures can fall outside this range, demanding specialized solutions.

For example, when measuring high-temperature air at 500°C, you’ll need instruments specifically designed to withstand such extreme heat.

High humidity:

Humidity levels can vary greatly depending on the environment, with relative humidity often ranging from 20% to 90%.

Some air flow measurement instruments are designed to operate in high humidity conditions, but it’s important to check the manufacturer’s specifications to ensure they can handle the moisture levels in your particular setting.

High pressure:

Pressure ranges can vary significantly in industrial applications, with some processes requiring the measurement of air flow at pressures as high as 40 bar or even higher.

It’s crucial to choose instruments rated for the specific pressure conditions in your facility to ensure reliable and accurate measurements.

Dusty and corrosive environments:

Dust concentrations and corrosion levels can differ widely depending on the industry and environment.

For instance, dust levels in coal mines can reach 2 mg/m³ or higher, while chemical plants may have highly corrosive substances in the air.

It’s essential to select air flow measurement instruments designed to handle these specific challenges, with features like dustproof enclosures or corrosion-resistant materials.

By considering these figures and the specific conditions in your industrial setting, you can make informed decisions when selecting air flow measurement instruments that are up to the task. Remember, the right instruments will ensure accurate measurements and reliable performance, even in the most demanding environments.

Types of Air Flow Measurement Instruments

These handy gadgets measure air flow by detecting how fast the air is moving. You’ll find two main types: hot-wire anemometers that measure air speed based on heat transfer, and vane anemometers that use a spinning fan to determine air velocity.

But Anemometers are not suitable for harsh industrial measurement environments.

Annubar flow meter also known as flute-shaped constant velocity tube flow meter and Toba tube flow meter. Annubar flow meter is a differential pressure flow meter.

Annubar Flow Meter is a no-equal solution with a patented, averaging pitot tube that delivers superior measurement accuracy over a wide flow range. This flow meter can measure multiple variables and is engineered with an integrated thermowell for temperature measurement. Its patented T-shaped sensor is capable of obtaining measurements via a single pipe penetration while maintaining a small profile in the pipe to reduce permanent pressure loss and increase energy savings.

Suitable for measuring the flow of liquids, gases, and steam.
The maximum working temperature of 1300 ° C (with appropriate materials and mounting parts).
The highest working pressure up to 400Bar (40MPa)

Therefore, in the case of high temperature and high pressure, or large-diameter pipelines, we recommend considering Annubar differential pressure flowmeters.

Read more about: Working principle of Annubar flow meter

Imagine a flat plate with a hole in the middle – that’s an orifice plate! By placing it in a pipe or duct, you create a pressure drop as the air flows through the hole. This pressure difference can be used to work out the flow rate. Read more about: What Is Integral Orifice Plate?

Venturi flow meter is a flow measurement method based on the principle of differential pressure. Commonly used to measure the flow of fluids such as air, natural gas, coal gas, and water. In the standard throttling device, the upstream and downstream straight pipe sections required by it are short. The lasting pressure loss is small, the performance is stable, and the maintenance is convenient.

Read more about: Classic venturi flowmeter structure

As air flows past a small obstruction, it creates swirling vortices. These meters measure the frequency of the vortices, which is directly related to the flow rate.

The vortex flowmeter is a volume flow meter that measures the volume flow of gas, steam, or liquid, the volume flow of standard conditions, or the mass flow of gas, steam, or liquid-based on the Karman vortex principle. When the fluid flows through the dust collector rod of the vortex flowmeter, a vortex is formed. The frequency of vortex shedding is proportional to the fluid velocity. Temperature and pressure compensation can be configured.

Read More about: Vortex Flow Meter Working Principle

These high-tech devices measure air flow based on heat transfer. By heating an element and measuring how much heat is carried away by the air flow, these meters can accurately determine the flow rate.

Case Studies

One of our old customers needs to measure the hot air flow of 2500mm large-diameter pipes. The key is that the temperature is around 800°C. Therefore, under comprehensive consideration, we configured an Annubar flowmeter for him.

Type: Annubar

Insert installation
316 stainless steel
With three valve block；
Hot air from the kiln
Air composition and proportions: gaseous carbon dioxide, gaseous sulphur and arsenic
Working pressure range: <10bar
Nominal pressure: about 4bar
Maximum flow range: 0-80000 m³/h
Temperature: 800°C
Pipe diameter: 2500mm
4~20mA output

At the same time, a high-temperature differential pressure transmitter and a flow totalizer are configured.

And high temperature pressure transmitters for pressure monitoring of air pipelines.

SI-2088 High Temperature Pressure Sensor

Pressure Range: -1bar to 10bar.
Temperature: 800℃
M20*1.5
4-20mA output

Frequently
Asked
Questions

Help Center

There are several instruments that can measure air flow, including anemometers, Pitot tubes, orifice plates, Venturi tubes, flow nozzles, vortex flow meters, and thermal mass flow meters. Each instrument has its own unique method for measuring air flow and is suitable for different applications and conditions.

To measure air flow rate, you can use one of the air flow measurement instruments mentioned above. The choice of instrument depends on the specific requirements of your application, such as accuracy, range, sensitivity, and environmental conditions. Always follow the manufacturer’s guidelines for installation, calibration, and use to ensure accurate and reliable measurements.

In a duct, common instruments used to measure air flow include anemometers, Pitot tubes, and thermal mass flow meters. Anemometers are widely used due to their versatility and ease of use, while Pitot tubes and thermal mass flow meters offer more specialized solutions for certain applications. The choice of instrument will depend on factors like accuracy, response time, and the environmental conditions in your facility.

Anemometers, especially vane anemometers, are commonly used to measure air flow in terms of cubic feet per minute (CFM). These devices measure air velocity, which can then be multiplied by the cross-sectional area of the duct or pipe to calculate the air flow in CFM. Other instruments like Pitot tubes, orifice plates, and Venturi tubes can also be used to measure CFM, depending on the specific application and conditions.

More Air Flow Measurement Applications

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In conclusion, accurate and reliable air flow measurement is crucial for maintaining process efficiency, energy savings, environmental compliance, and ensuring the health and safety of workers in industrial settings. With a variety of air flow measurement instruments available, it’s essential to select the right one based on your specific needs and the environmental conditions of your facility.

If you’re looking for a professional flow meter supplier with years of experience, look no further than Sino-Inst. As a trusted provider of high-quality flow measurement solutions, they have the expertise and product range to help you find the perfect instrument for your application. Whether it’s an anemometer, Pitot tube, or one of their other innovative flow meters, you can rely on Sino-Inst to deliver reliable, accurate, and long-lasting solutions for your air flow measurement needs. Make the smart choice for your industrial air flow measurement with Sino-Inst today!

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KimGuo11

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Top Flow Meters for PVC Pipes: Find Your Ideal Match

Posted on March 22, 2023 by KimGuo11

Looking for the best flow meters for your PVC pipes system? Well, you’re in the right place! Flow meters are essential tools for measuring the flow rate of fluids through pipes, and choosing the right one can make all the difference in the efficiency and accuracy of your system.

In this article, we will cover everything you need to know about flow meters for PVC pipes, including the different types available, factors to consider when choosing one, installation and maintenance tips, cost considerations, and more. So, sit tight and get ready to find your ideal match!

Get to know your PVC pipes

PVC pipes are a type of plastic pipe that are commonly used for plumbing, irrigation, and other applications where a lightweight and durable pipe is needed. They are made from a type of plastic called polyvinyl chloride (PVC), which is known for its strength, resistance to corrosion, and flexibility.

Properties:

Lightweight
Strong and durable
Flexible
Resistant to corrosion
Highly resistant to chemicals, UV light, and extreme temperatures

Benefits:

Affordable
Easy to transport and install
Versatile and suitable for a wide range of applications
Can be easily cut, shaped, and joined together
Low maintenance requirements
Long lifespan

Industries that commonly use PVC pipes:

Agriculture
Construction
Manufacturing
Residential and commercial plumbing
Drainage and sewage systems

Flow Meters: What Are They?

A flow meter is a device that measures the amount of liquid, steam or gas that passes through a specific point in a pipe or conduit. It is used in various industries to monitor and control the flow of fluids in pipelines, such as water, oil , gas, or chemicals.

Flow meters can be mechanical, electronic, or ultrasonic, and they work by measuring the velocity, volume, or mass of the fluid.

Flow meters are essential for ensuring that fluid flow rates remain within acceptable limits. And they help prevent damage to equipment and systems due to overloading or underloading. They are also critical in maintaining product quality and process efficiency.

Read more about: Types Of Pipe Flow Meters

There are several different types of flow meters available, each with their own unique features and benefits. Here are some of the most common types of flow meters:

Magnetic flow meters:
- Work by generating a magnetic field across the pipe
- Measure the voltage created by fluid moving through the magnetic field
- Can be used with a wide range of fluids
- Are non-intrusive, meaning they don’t require direct contact with the fluid
Ultrasonic flow meters:
- Use sound waves to measure flow
- Are non-intrusive and don’t require direct contact with the fluid
- Can be installed without disrupting the flow of the fluid
Turbine flow meters:
- Measure flow by using a rotor with blades that spin as the fluid moves through the pipe
- Can be used with liquids and gases
Positive displacement flow meters:
- Measure flow by dividing the fluid into small, measured increments
- Can be used with a wide range of fluids
Vortex flow meters:
- Measure flow by detecting the frequency of vortices created by the fluid moving through the pipe
- Can be used with liquids, gases, and steam
Mass flowmeter:
- high measurement accuracy

Top Flow Meters for PVC Pipes

Ultrasonic flow meters for PVC pipes

If I were to vote, I would definitely choose ultrasonic flowmeters as the preferred flowmeter for PVC pipes. Especially for measuring the pipeline flow of water.

Because they measure non-contact, installation is simple.

Ultrasonic flow meters can be a great choice for measuring flow in PVC pipes. Here are some reasons why:

Non-invasive: Ultrasonic flow meters don’t require direct contact with the fluid, meaning they won’t disrupt the flow or contaminate the fluid being measured.
Accurate: Ultrasonic flow meters are highly accurate, providing precise flow measurements even in low-flow conditions.
Versatile: Ultrasonic flow meters can be used to measure a wide range of fluids, including water, oils, and chemicals.
Low maintenance: Ultrasonic flow meters require minimal maintenance, making them a cost-effective choice in the long run.
Easy to install: Ultrasonic flow meters can be installed without disrupting the flow of the fluid, meaning they can be installed without shutting down the system.
Can measure bidirectional flow: Ultrasonic flow meters can measure flow in both directions, which can be useful in certain applications.

Overall, ultrasonic flow meters can be an excellent choice for measuring flow in PVC pipes. They provide accurate and reliable measurements while being easy to install and maintain. Be sure to consult with a professional to determine whether an ultrasonic flow meter is the right choice for your particular application.

Magnetic flow meters for PVC pipes

Except for ultrasonic flowmeters. Electromagnetic flow meters are also a common choice for PVC pipe measurements.

Magnetic flow meters can be an excellent choice for measuring flow in PVC pipes. Here are some reasons why:

Suitable for corrosive fluids: Magnetic flow meters can be used to measure a wide range of fluids, including corrosive chemicals that can damage other types of flow meters.
Accurate: Magnetic flow meters provide accurate and reliable flow measurements, even in low-flow conditions.
Easy to install: Magnetic flow meters are easy to install and can be integrated into existing PVC pipe systems without disrupting the flow of the fluid.
Low maintenance: Magnetic flow meters require minimal maintenance, making them a cost-effective choice in the long run.
Wide range of pipe sizes: Magnetic flow meters can be used with a wide range of pipe sizes, making them suitable for a variety of applications.

Overall, magnetic flow meters can be an excellent choice for measuring flow in PVC pipes, particularly when working with corrosive fluids. They provide accurate and reliable measurements while being easy to install and maintain. Be sure to consult with a professional to determine whether a magnetic flow meter is the right choice for your particular application.

Gear flow meters for PVC pipes

Gear Flow Meter is our new product. It has excellent performance in the field of measuring small flow. At the same time, Gear Flow Meter is available in aluminum alloy, stainless steel and PTFE. It can meet the measurement of corrosive liquid and high viscosity liquid.

Read more about Specifications of Gear Flow Meter.

Frequently
Asked
Questions

Help Center

You can determine if water is flowing through a PVC pipe by checking the water meter or installing a flow meter on the pipe. Alternatively, you can physically inspect the pipe and look for signs of water movement, such as a swirling or bubbling motion.

The maximum flow rate for a 2 inch PVC pipe depends on several factors, including the pressure of the fluid and the length of the pipe. However, as a general rule of thumb, a 2 inch PVC pipe can typically handle a flow rate of up to 100 gallons per minute.

A water meter is a type of flow meter that is specifically designed to measure the volume of water that passes through a pipe. A flow meter, on the other hand, can be used to measure the flow rate of any type of fluid, including water.

Flow rate can be monitored on a pipe by installing a flow meter, which measures the amount of fluid passing through the pipe over a given period of time. The flow meter can then display this information on a gauge or send it to a monitoring system.

Read more about: Flow Meters With GPM Units

There is no one-size-fits-all rule of thumb for flow meter pipe. The size and type of flow meter required will depend on a variety of factors, including the size of the pipe, the type of fluid being measured, and the flow rate of the fluid. It is important to consult with a professional to determine which type of flow meter is best suited for your particular application.

Shop Pipe Flow Meters for Liquid and Gas 101

Posted on March 20, 2023 by KimGuo11

Pipe flow meters are the unsung heroes of fluid management, helping you accurately measure flow in closed pipes. These nifty gadgets come in various types. Like ultrasonic, portable, and magnetic flowmeters, each with their own benefits. Ultrasonic flowmeters, for example, use sound waves and can easily clamp onto a straight pipe for non-invasive flow rate measurement. From turbine to orifice plates and mass flow, there’s a perfect pipe flow meter for every application, whether it’s tracking upstream fuel flow or simply water gauging .

So, let’s analyze and compare pipe flow meters and discover their endless possibilities!

RFQ Flow Meters

Pipe Flow Meter Basics

Understanding Pipe Flow

When it comes to pipe flow, it’s essential to know that not all fluid flow is created equal. There are two main types of flow you’ll come across: laminar flow and turbulent flow. Let’s break them down in a way that’s easy to understand.

Laminar flow is the smooth, orderly flow of fluid in a pipe. Picture a peaceful river, where the water glides effortlessly along. In laminar flow, the fluid’s layers slide past each other without much mixing, resulting in a low flow resistance.

Turbulent flow, on the other hand, is a bit more chaotic. Imagine a raging river, with water swirling and splashing all over the place. In turbulent flow, the fluid particles are constantly colliding and mixing, causing more resistance and making it harder to predict the flow’s behavior.

Learn more about laminar and turbulent flow from Wikipedia.

Now that we’ve covered the two main types of flow, let’s explore some factors that can affect pipe flow:

Pipe diameter: The size of the pipe has a direct impact on the flow. A larger diameter generally leads to lower flow resistance and higher flow rates.
Fluid viscosity: Viscosity is a measure of how thick a fluid is. The thicker (or more viscous) the fluid, the harder it is for it to flow through a pipe.
Pipe roughness: The smoother a pipe’s interior surface, the less resistance there is for the fluid to flow. Rough pipes can lead to more turbulent flow and increased energy loss.
Flow velocity: The speed at which the fluid is moving in the pipe affects the type of flow as well. Higher velocities are more likely to cause turbulent flow, while lower velocities favor laminar flow.

By understanding these basic concepts of pipe flow, you’ll be well-equipped to tackle any flow-related challenge!

Types of Pipe Flow Meters

By understanding different types of pipe flow meters, you’ll be well-prepared to choose the right one for your specific needs!

Type of Flow Meter	Common Flow Meters	Description
Differential Pressure	Orifice plates	A thin plate with a hole in the middle placed inside the pipe; measures pressure drop to calculate flow rate.
	Venturi tubes	A tube with a narrow, cone-like section that causes fluid to speed up and pressure to drop; measures pressure difference to calculate flow rate.
	Flow nozzles	A nozzle with an opening through which fluid passes; smooth shape reduces energy loss, suitable for high-velocity flows.
Velocity Flow Meters	Turbine flow meters	A turbine inside the pipe that spins due to fluid flow; measures rotation to determine flow rate.
	Vortex flow meters	Creates vortices in the fluid; measures the frequency of vortices to determine flow rate.
	Ultrasonic flow meters	Measures fluid’s velocity using sound waves without touching it.
	Magnetic flow meters	Measures flow rate of conductive fluids using a magnetic field.
Positive Displacement	Piston flow meters	A chamber with a piston that moves due to fluid flow; counts piston movements to calculate flow rate.
	Gear flow meters	Uses rotating gears to trap and measure fluid’s volume to determine flow rate.
	Diaphragm flow meters	Flexible diaphragm moves back and forth due to fluid flow; measures volume of fluid that passes through.
Mass Flow Meters	Coriolis flow meters	Uses a vibrating tube to measure fluid’s mass flow; detects changes in vibration and converts data to flow rate.
Mass Flow Meters	Thermal mass flow meters	Heats up the fluid and measures heat loss to determine the mass flow rate of gases.

Featured Pipe Flow Meters

Shop 101: Key Factors in Selecting a Pipe Flow Meter

Choosing the perfect pipe flow meter can be a bit tricky, but if you keep these key factors in mind, you’ll be on the right track. Let’s break them down in a way that’s easy to understand.

Flow Range and Accuracy

Pipe diameter and flow range: Like DN20, Diesel flow range 0.8～8m³/h;
Accuracy requirements: The accuracy of conventional liquid flowmeters is 0.5%, and the accuracy of common gas flowmeters is ±1.0%. These can basically meet the needs of most users. If you have high precision requirements, be sure to let us know in advance.
Pressure drop: Some flow meters cause a pressure drop in the system.

Fluid Compatibility

Fluid type: Whether you’re measuring water, oil, or something else entirely. Make sure the flow meter is compatible with the type of fluid you’re working with.
Fluid properties: Things like corrosiveness, abrasiveness, and conductivity can impact a flow meter’s performance. So choose one that can handle your fluid’s specific properties.
Fluid viscosity: Viscosity affects how easily a fluid flows. Pick a flow meter that works well with the viscosity of your fluid.
Temperature and pressure: such as 1.6Mpa, normal temperature. If there is a demand for high temperature or extremely low temperature, you also need to pay attention.

Installation and Maintenance

Installation: Consider whether the flow meter can be installed without breaking the pipeline or if it requires a special installation process. Some flow meters, like clamp-on ultrasonic meters, are non-invasive and don’t require breaking the pipeline.
Calibration: Check how often the flow meter needs to be calibrated and whether it can be easily calibrated in your system.

Budget

Last but not least, think about your budget. While it’s important to find a flow meter that meets your needs, it’s also essential to choose one that fits your budget without compromising on quality or performance.

By considering these factors, you’ll be well on your way to selecting the perfect pipe flow meter for your specific needs!

Frequently
Asked
Questions

Help Center

To measure flow in a pipe, you’ll need a flow meter. There are various types of flow meters, each designed to measure flow based on different principles, such as volumetric flow, mass flow, or velocity flow. Choose the appropriate flow meter for your specific application, considering factors like fluid type, flow rate range, and accuracy requirements.

The three main principles that flow meters rely on are volumetric flow, mass flow, and velocity flow.

Volumetric flow meters measure the volume of fluid passing through a pipe, mass flow meters measure the fluid’s mass, and velocity flow meters measure the speed of the fluid in the pipe to calculate the flow rate.

The installation process depends on the type of flow meter you’re using. Some flow meters require breaking the pipeline and installing the meter directly in the line, while others, like clamp-on ultrasonic flow meters, can be installed without disrupting the pipeline.

Make sure to follow the manufacturer’s guidelines for proper installation and calibration.

There are actually more than two types of flow meters, but the two main categories are invasive and non-invasive flow meters.

Invasive flow meters are installed directly in the pipe and come into contact with the fluid. Examples include turbine, positive displacement, and Coriolis flow meters.

Non-invasive flow meters, like clamp-on ultrasonic and magnetic flow meters, measure flow without coming into direct contact with the fluid.

The Pros and Cons of Micro Motion Flow Transmitters

Posted on March 20, 2023 by KimGuo11

Are you familiar with the micro motion flow transmitter ? The micro motion flow transmitter is a device used to measure the flow rate of liquids and gases in various industries. It works on the principle of the Coriolis Effect and is simple to install with the help of an animation or drawing in the micro motion flow meter manual.

The micro motion flow transmitter has a digital core processor, can measure the density and mass flow rate of both liquids and gases. And can be used in many different applications.

Style Individually

Featured Mass Flow Meters

**Z-Series Straight Tube Micro Motion Coriolis Flow Meter**

**T-series Triangle Coriolis Mass Flowmeter**

**V-series Curved Digital Mass Flow Meter**

Working Principle of Micro Motion Flow Transmitter

The micro motion flow transmitter works by measuring the flow rate of liquids and gases using the Coriolis Effect. This means that when a fluid flows through a tube, it causes the tube to vibrate in a specific way. The sensor inside the micro motion flow transmitter detects these vibrations and calculates the mass flow rate of the fluid.

Imagine a tube filled with water. As the water flows through the tube, it causes the tube to twist and turn, similar to a twisting rope. The sensor within the micro motion flow transmitter detects these twists and turns and uses them to measure the amount of water flowing through the tube. This allows the transmitter to accurately measure the mass flow rate of the fluid. Making it an important tool for industries that rely on accurate flow measurements.

In simpler terms, the micro motion flow transmitter works like a detective. It senses the movements of the fluid flowing through the tube and uses them to determine how much of the fluid is flowing. This makes it an essential device for ensuring precise and accurate flow measurements in a variety of industries.

Types of Micro Motion Flow Transmitter

There are a few different types of micro motion flow transmitter available, each with its own unique features and benefits. These include:

Fork vibrating flow meters: These have a sensor that vibrates like a tuning fork to detect the movement of the fluid.
Straight tube flow meters: These have a straight tube that the fluid flows through, which makes them ideal for applications where the fluid is very viscous.
Dual tube flow meters: These have two tubes that vibrate in opposite directions, which makes them very accurate and precise.

Each type of flow meter has its own strengths and weaknesses, so it’s important to choose the right one for your needs.

For example, a straight tube flow meter might be best if you’re measuring the flow of a thick liquid. While a dual tube flow meter might be best if you need extremely precise measurements.

By understanding the different types of micro motion flow transmitter available, you can choose the one that’s right for your specific application.

Applications

The micro motion flow transmitter is a versatile tool that can be used in many different industries and applications. Here are just a few examples:

Industry	Application
Chemical processing	Measuring the flow of chemicals through pipelines, ensuring precise mixing and accurate dosing
Oil and gas	Measuring the flow of oil and gas through pipelines, making it easier to manage the extraction and transportation of these valuable resources
Food and beverage	Measuring the flow of ingredients in food and beverage production, ensuring consistent quality and reducing waste
Pharmaceutical	Accurately measuring the flow of liquids and gases in pharmaceutical production, making it easier to ensure the purity and consistency of the end products
Water and wastewater treatment	Measuring the flow of water and wastewater, making it easier to manage the treatment and disposal of these vital resources

Learn More about Micro Motion Flow Transmitters

A micro motion flow transmitter offers several advantages that make it a smart investment for industries. Here are some of the benefits:

Precise flow measurement: Micro motion flow transmitters measure flow rates with great accuracy. Provide reliable data for process control.
Durability: These devices are built to withstand harsh conditions. Such as extreme temperatures or corrosive materials.
Versatility: Micro motion flow transmitters can measure both liquids and gases and are used in many different industries, from chemicals to food production.
Cost savings: By providing accurate flow measurement, micro motion flow transmitters help reduce waste and save money over time.
Environmental impact: Micro motion flow transmitters contribute to a lower environmental impact by reducing waste and improving efficiency.

Overall, the advantages of using a micro motion flow transmitter make it a valuable investment for industries looking to improve efficiency, reduce waste, and save money.

While micro motion flow transmitters offer many advantages, there are also some limitations to be aware of. Here are some of the main ones:

Limited pipe size range: These devices are not suitable for all pipe sizes and may not work in very large or very small pipes.
Potential for pressure drop: Micro motion flow transmitters can cause a pressure drop in the system being measured, which can affect the accuracy of the measurement.
Higher initial cost: These devices can be more expensive than other flow meters, which can be a consideration for some industries.

Despite these limitations, micro motion flow transmitters remain a valuable tool for many industries due to their accurate and precise flow measurement capabilities. By understanding the limitations, industries can choose the right device for their specific needs.

When choosing a micro motion flow transmitter, there are several factors to consider to ensure you select the right one for your needs. Here are some of the main factors:

Flow rate and accuracy requirements: Consider the required flow rate and level of accuracy needed for your industry and application.
Fluid type: Micro motion flow transmitters can measure both liquids and gases, but it’s important to ensure that the specific device you choose is suitable for the fluid type you’ll be measuring.
The state of the fluid: the viscosity, density, etc. of the fluid.
Pipe size and material: Consider the size and material of the pipes you’ll be measuring to ensure the device is compatible.
Environment: Consider the conditions in which the device will be used, such as temperature and humidity levels. Including pipeline pressure, etc.
Cost: Micro motion flow transmitters can be more expensive than other flow meters, so it’s important to consider the initial cost and potential long-term cost savings from waste reduction.

By taking these factors into account, you can choose a micro motion flow transmitter that meets your specific needs and provides accurate and reliable flow measurements.

Comparison of Micro Motion Flow Transmitter with Other Flow Meters

Micro motion flow transmitters offer highly accurate and precise flow measurement, durability in harsh conditions, and versatility for use in different industries.

While other types of flow meters may be less expensive or suitable for certain applications, micro motion flow transmitters remain a valuable tool for industries that require precise flow measurement.

Here are some of the main differences between micro motion flow transmitters and other flow meters:

Differential pressure flow meters: These meters measure the pressure drop across an obstruction in the pipe to determine flow rate. They are less accurate than micro motion flow transmitters and can be affected by changes in viscosity and fluid density.
Positive displacement flow meters: These meters measure the amount of fluid that is displaced by a moving part, such as a piston or gear. They are accurate but can be affected by changes in fluid viscosity and require regular maintenance.
Turbine flow meters: These meters use a spinning turbine to measure flow rate. They are less accurate than micro motion flow transmitters and can be affected by changes in fluid density and viscosity.
Ultrasonic flow meters: These meters use sound waves to measure flow rate. They can be more accurate than micro motion flow transmitters in some applications but are less suitable for very high or very low flow rates.

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Micro motion flow meters work by using the Coriolis Effect to measure the mass flow rate of liquids and gases. As the fluid flows through a vibrating tube, the sensor detects the resulting movement and calculates the mass flow rate.

Micro motion flow meters are used to measure the flow rate of liquids and gases in various industries, including chemical processing, oil and gas, food and beverage, and water and wastewater treatment.

Micro motion mass flow meters are highly accurate and can provide precise flow measurements within a range of +/- 0.05% of the reading.

Of course, the specific accuracy is also related to the measurement parameters. For example, the Coriolis mass flowmeter supplied by Sino-inst, DN06, measuring tube material 316L, shell material 304, output signal 4~20MA, communication 485, pulse signal, gas accuracy 0.3% and liquid accuracy 0.2%.

A flow meter transmitter is a device that collects data from a flow meter and transmits it to a control system or computer. This allows for real-time monitoring and control of the flow rate.

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In conclusion, micro motion flow transmitters are a valuable tool for measuring the flow rate of liquids and gases in various industries. They offer highly accurate and precise flow measurement, durability in harsh conditions, and versatility for use in different applications.

While there are some limitations to be aware of, understanding the factors to consider when choosing a micro motion flow transmitter can help you select the right device for your needs.

If you’re looking for a reliable supplier of flow measurement devices, consider Sino-Inst.

With many years of industry experience, Sino-Inst offers a wide range of flow meters, including micro motion flow transmitters, and can help you find the right device for your specific application.

Contact Sino-Inst today to learn more about their flow measurement solutions and how they can help you improve efficiency and reduce waste in your industry.

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KimGuo11

drurylandetheatre.com

Top 5 Ultrasonic Level Sensor Applications

Posted on March 12, 2023 by KimGuo11

Ultrasonic level sensor applications are across a wide range of industries, from water and wastewater treatment to the food and beverage industry. And they play a crucial role in ensuring accurate and reliable measurements of liquids and other materials. We’ll dive deep into the world of ultrasonic level sensor applications. Whether you’re a seasoned professional or just starting out, if you have new research or questions about Ultrasonic Level Sensor Applications, please feel free to contact us.

RFQ Level Meters

Ultrasonic Level Sensor Applications

Application 1: Liquid Level Monitoring in the Food and Beverage Processing

Ultrasonic Level Sensor, which is non-contact and pollution-free, has been paid more and more attention as an important part of food equipment.

As a liquid level measurement and control instrument—Ultrasonic Level Sensor, it truly protects food. In the beverage industry, strict hygiene testing is a basic requirement for food and beverages.

Ultrasonic Level Sensor can solve the monitoring of beverage storage, including the detection of containers such as wine and fruit juice. The non-contact measurement method ensures a good production environment.

The integrated design of Ultrasonic Level Sensor is convenient for installation and maintenance, and also brings great convenience to the production and monitoring process.

At the same time, with the improvement of living standards, our requirements for food packaging are gradually increasing. Ultrasonic Level Sensor is used to detect whether the packaging box is full, quantify the packaging volume, control the filling liquid level, etc. Improve production efficiency above 50%.

And provide continuous monitoring data for production enterprises. The timely sharing of data has a very positive impact on food accident handling and food risk assessment and judgment.

Today, the issue of food is one of the public issues that the public is still concerned about, and the Ultrasonic Level Sensor application provides a powerful umbrella for the monitoring and management of the beverage and food industries.

Ultrasonic Level Sensor’s diverse installation methods, beam angle design of less than 9°C, and response time of less than 200ms to ensure higher accuracy make Ultrasonic Level Sensor more important in Liquid Level Monitoring in the Food and Beverage Processing.

In addition to Ultrasonic Level Sensor, ultrasonic flow measurement also plays an important role in Food and Beverage Processing.

Read more about: Ultrasonic Level Sensors for Liquids Applications

Application 2: Tank Level Monitoring in the Oil and Gas Industry

The oil and gas industry is all about efficiency, accuracy, and safety, and ultrasonic level sensors play a crucial role in achieving these goals. Ultrasonic Level Sensors are used in a variety of applications, from measuring the level of liquids in tanks to monitoring the flow of liquids in pipelines.

One of the main advantages of using ultrasonic level sensors in the oil and gas industry is their ability to measure liquids with high precision.

Another advantage of ultrasonic level sensors is their non-contact measurement method. Unlike other sensors that come into direct contact with the material being measured, ultrasonic level sensors use sound waves to determine the level, which eliminates the risk of contamination.

Finally, ultrasonic level sensors are also low-maintenance, which is an important factor in the fast-paced and demanding environment of the oil and gas industry.

In conclusion, ultrasonic level sensors are a valuable tool in the oil and gas industry, helping to improve efficiency, accuracy, and safety. With their high precision, non-contact measurement method, and low-maintenance requirements, these sensors are a smart choice for any oil and gas operation.

Application 3: Level Measurement in Waste Water Treatment Plants

Ultrasonic Level Sensor is widely used in liquid level measurement projects in waterworks, wastewater treatment plants, chemical reagent factories, dye factories, pulp mills and other factories. It is one of the main liquid level measurement methods in the modern intelligent automation industry.

The composition of sewage is complex and corrosive, and floating objects are easy to form on the surface of the liquid. Therefore, the required Level Sensor is sensitive and reliable. Ultrasonic has the characteristics of strong signal penetration and sensitive response, and is the recommended choice for sewage level measurement.

Judging from the actual application effect of the sewage treatment station, the workers on duty can obtain accurate sewage water level conditions through the LED display. The frequent measurement work of manual ruler inspection is saved. Save a lot of manpower and improve work efficiency.

At the same time, the Ultrasonic Level Sensor can reflect the water level in a timely manner, which is conducive to the real-time and reasonable management and control of the dispatching room according to the water level. It effectively solves the problem of data deviation caused by inaccurate measurement data and ensures the smooth progress of operations.

Application 4: Level Measurement in Silos and Hoppers

The silo material level ultrasonic sensor is used to display the height of the material in the silo (full warehouse, empty warehouse or a certain height material level).

Some people understand that as long as it is a solid, it can be measured, but it is wrong. It has prerequisites for its measurement.

What material levels can Ultrasonic Level Sensor measure?

Powdery solid: It is difficult to measure it with a general ultrasonic level gauge. Take the measurement of flour as an example, the Ultrasonic Level Sensor with a range of 10 meters can only measure a distance of about 2 meters, and it will not be able to measure it any further. Substances such as cement powder, soybean powder, wood residue, and fly ash are not easy to measure. The powder solids that can be measured include: yellow sand, iron powder, stone powder and other substances with a density greater than 3000 kg/m3.
Granular solids: the particle diameter is greater than 3mm, and the density is greater than 1000 kg/m3. For example: ABS particles, stones, wheat, etc. Under the premise of no dust, the selected Ultrasonic Level Sensor should be 3 times larger than the actual measuring range.
Blocky solids: such as: coal, ore, etc., most of the blocky solids can be measured, and the selected Level Sensor range should be 3 times larger than the actual range.

Application 5: Level Measurement in Reservoirs

Reservoirs play a very important role in water conservancy projects. The construction of reservoirs is a hydraulic engineering building for flood storage and regulation of water flow. It can be used for water storage, irrigation, power generation, flood control and fish farming.

Ultrasonic level gauges can measure changes in content in rivers, lakes, seawater, reservoirs, canals, and pools.

The level of liquids in reservoirs is an important indicator of the amount of resources available, and it is used to optimize the production process and minimize waste.

Ultrasonic Level Sensors use sound waves to determine the level of liquids, providing accurate measurements even in challenging environments where traditional sensors may fail.

In conclusion, With their non-contact measurement method, accuracy, and low-maintenance requirements, ultrasonic level sensors are a smart choice for any industry that relies on accurate level measurements in reservoirs.

Featured Ultrasonic Level Sensors

**Ultrasonic Sludge Interface Meter /**
**Sludge Level Meter**

**ULT-100 Explosion-proof** **Ultrasonic Level Indicator**

**Portable Ultrasonic Liquid Level Indicator**

**HS-2000 Ultrasonic Tank Level Sensor-External Mounted**

**Portable Ultrasonic Water Depth Gauge**

Advantages of Ultrasonic Level Sensors

Ultrasonic level sensors are a powerful tool for measuring the level of liquids and other materials, offering several key advantages, including:

Accurate and Reliable Measurement: Ultrasonic level sensors use advanced technology to determine the level of liquids with high precision, ensuring accurate and reliable measurements.
Non-Contact Measurement: Ultrasonic level sensors use sound waves to determine the level of liquids, eliminating the risk of contamination through direct contact with the material.
Immunity to Dust, Vapors, and Liquids: Ultrasonic level sensors are immune to dust, vapors, and liquids, making them ideal for use in challenging environments.
No Maintenance Required: Ultrasonic level sensors require very little maintenance, making them a low-maintenance solution for accurate level measurements.

Challenges and Limitations of Ultrasonic Level Sensors

While ultrasonic level sensors offer many advantages, they also have some limitations, including:

Difficulties in Measuring Viscous Liquids: Ultrasonic level sensors can have difficulty measuring viscous liquids accurately.
Interference from Other Ultrasonic Sources: Ultrasonic level sensors are sensitive to ultrasonic noise, and other ultrasonic sources in the environment can interfere with their accuracy.
Limited Measurement Range: Ultrasonic level sensors have a limited measurement range, which can be a challenge in certain applications.
Requires Clear Line-of-Sight to the Surface of the Liquid: Ultrasonic level sensors require a clear line-of-sight to the surface of the liquid in order to obtain accurate measurements.

Frequently
Asked
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Ultrasonic technology is used in level sensors to measure the level of liquids and other materials. These sensors use sound waves to determine the level of the material, providing accurate and reliable measurements even in challenging environments.

Ultrasonic level sensors are used in a variety of industries, including food and beverage, oil and gas, water treatment, and chemical production. They are also used for level measurement in reservoirs and other applications where accurate level measurements are required.

Ultrasonic level transmitters are ideal for applications where accuracy and reliability are important, such as in the food and beverage industry, where maintaining the purity of the products is of utmost importance. They are also ideal for use in challenging environments where traditional sensors may fail, such as in the oil and gas industry, where they are immune to dust, vapors, and liquids.

Level sensors are used in a variety of applications, from measuring the level of liquids in tanks to monitoring the flow of liquids in pipelines. They are also used for level measurement in reservoirs and other applications where accurate level measurements are required. Level sensors can be used in many industries, including food and beverage, oil and gas, water treatment, and chemical production.

Read more about: Level Senors for Tank Level Measurement

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Conclusion

Ultrasonic Level Sensor Applications are far more than the 5 mentioned in this article. There are many special applications that we have not mentioned.

Ultrasonic level sensors are a powerful tool for level measurement, providing reliable and accurate measurements for many industries. Whether you’re looking for a solution for level measurement in reservoirs, or any other application, ultrasonic level sensors are a valuable and versatile.

As Ultrasonic Level Sensors manufacturer and supplier, we supply more than 20 kinds of Ultrasonic Level Sensors.

If you have special requirements for Ultrasonic Level Sensor Applications, or have related technical questions. Feel free to contact us any time.

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KimGuo11

drurylandetheatre.com

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