Rotameter flow meter

What is a rotameter flow meter?

A Rotameter flow meter is a variable area flow meter based on float position measurement. It is suitable for liquid and gas volumetric flow measurement and control.

The LZ series Rotameter Flowmeter provided by Sino-Inst adopts a 304/316 stainless steel structure. It can be used to measure the flow of liquid, gas, and steam. Especially suitable for low flow velocity and small flow. Flow measurement of high temperature, high pressure, strong corrosion, conductive or non-conductive media.

Rotameter Flow meter Features

Variable Area Flow Meters

LZ series metal Rotameter Flowmeter (also known as metal Variable Area Flow Meters) is divided into two series, LZH and LZ. It has the characteristics of simple structure, reliable operation, wide application range, high precision, and convenient installation.

This series of flowmeters is compared with glass rotor flowmeters. It has the characteristics of high-pressure resistance, high temperature, a strong sense of safety, and concise readings.

It can also be used for flow measurement of opaque and corrosive media. The pipe body and flange of the instrument are made of stainless steel (1Cr18Ni9Ti or OCr18Ni12Ho2Ti).

LZH series: Conventional orifice plates and floats are made of stainless steel. Anticorrosive orifice plates, floats and tube inner linings are made of PTFE.

LZ series: The float and tapered tube are made of stainless steel, and this series is non-corrosive.

The LZH series consists of an instrument tube, a standard orifice plate, a cone float and a magnetic converter;
The LZ series consists of an instrument tube, a standard float, a tapered tube and a magnetic converter.

The working parameters of this series of meters and their conversion and correction are provided by the meter calculation software to provide standard calculation methods. The meter’s measurement accuracy is guaranteed.

Rotameter Flow meter Specifications

Type LZH series LZ series
Flow range Water 2.5~100000L/h;
Air 0.07~3000m3/h
Water 6~100000L/h
Air 0.2~1000m3/h
Turndown ratio DN≤100mm(10:1);
DN>100mm(5:1)
DN<80mm(10:1)
DN≥80mm(5:1)
Precision Standard type 2.5 grade,
special order can reach 1.0 grade
Work pressure DN15, DN25, DN40, DN50: 4.0MPa.
DN80, DN100, DN150: 1.6MPa
DN15,DN25,DN40,DN50:6.4MPa
DN25,DN40,DN50,DN80,DN100:2.5MPa
DN150:1.6MPa
Medium temperature Ordinary type H1:-40℃~100℃
High temperature type H2: -80℃-250℃
Ambient temperature Pointer type: -40℃~65℃
Intelligent type: -25℃~65℃
Connection method Flange connection (flange standard: refer to GB9115-88, JB82-59 (6.4IPa), special specifications are determined according to user requirements)
Explosion-proof grade Intrinsically safe: ExibIICT4 with safety barrier LB987S, explosion-proof certificate number GYB06884
Explosion-proof: ExdIIBT4, explosion-proof certificate number GYB071017
Protection level IP65
Viscosity DN15: ≤5mPa·s, DN25~DN150: ≤250mPa·s
Product performance standards JB/T6844-1993

Rotameter flow meter applications

The metal Rotameter flow meter is suitable for the flow measurement of small-diameter and low-velocity media. It can measure most media such as gas and liquid.

The metal Rotameter flow meter can measure the instantaneous flow and cumulative flow of gases and liquids, including corrosive acid, alkali, and salt solutions. It is especially preferred when the flow is low or when a purely mechanical or inconvenient power supply is required.

Rotameter flow meters are mostly vertical installation, bottom entry, and top exit type, and can also be installed horizontally. The price is higher. Let me show you a sample.

Rotameter-flow-meter-explosion-proof-applications

This is an explosion-proof type for measuring corrosive liquids.

Rotameter-flow-meter-Smart-Applications

This is a smart type. It can measure gas and liquid. There should be no impurities.

Rotameter-flow-meter-to-measure-nitrogen

This one is installed horizontally to measure nitrogen. It is purely mechanical to display instantaneous flow rate.

Extended reading: Flow Totalizer F3000X for Data collection and calculation

Rotameter flow meter structure

A Rotameter flow meter is a variable area flow meter. It consists of measuring tube, float, indicator, process connection, and so on.

Rotameter flow meter working principle

When the measured fluid passes through the annulus formed by the cone and floats from the bottom to top.

The differential pressure produced at the upper and lower ends of the float forms the force for the float to rise.

When the rise of the float is greater than the weight of the float immersed in the fluid. The float rises.

The annulus area increases accordingly. The fluid velocity in the annulus drops immediately.

The differential pressure at the upper and lower ends of the float is reduced. The lifting force acting on the float also decreases.

Until the rising force equals the weight of the float immersed in the fluid, the float will stabilize at a certain height.

The height of the float in the tapered tube and the flow rate through it correspond to each other.

Extended reading: Beginner’s Guide: Variable area flow meter

Advantages:

  • Cheap price.
  • Observe intuitively.
  • easy installation
  • No external power needed
  • Can Measure Liquid or Gas Flows
  • Better rangeability
  • Low cost and low-pressure drop

Disadvantages:

  • Compared with other flow meters, the accuracy is low.
  • The service life is short.
  • Maintenance is required after using for a period of time!

  • Installed vertically on a vibration-free pipe. The fluid flows through the meter from bottom to top.
  • When measuring dirty fluids, a filter should be installed upstream of the meter
  • If the fluid itself is pulsating, a buffer tank can be installed. If the instrument itself oscillates, a damping device can be installed.
  • The gas in the instrument must be drained of the liquid.
  • The control valve in the measurement and control system should be installed downstream of the flowmeter. When used for gas measurement, ensure that the working pressure is not less than 5 times the pressure loss of the flowmeter. In order to make the flowmeter work stably.
  • Before installing the metal rotor flowmeter, the welding slag in the pipeline should be purged. Remove the stop element from the flowmeter when installing. When using after installation, open the control valve slowly. Avoid impact damage to the flowmeter.
  • If the measurement requires a wide range of flow, the range exceeds 10 o’clock. Two floats of different shapes and weights can be placed in one instrument. Take the frivolity reading when the flow is small. After the float reaches the top, take the reading of the heavy float. The range can be expanded to 50-100.
  • Liquid meters are usually calibrated with water, and gas meters are calibrated with air. The fixed value is in the engineering standard state. If the fluid density, gas pressure, and temperature of the use conditions are inconsistent with the calibration. Make necessary conversions.

Read more about: Beginner’s Guide: Variable area flow meter

Related Products:

Air mass flow meter VS Controller

Related products What is a mass flow meter? Air mass flow meter, namely Mass Flow Meter (abbreviated as MFM). It is an instrument for accurately measuring gas flow. The measured value is not inaccurate due to temperature or pressure fluctuations. Read More

Industrial Oil Flow Meters

Industrial oil flow meters measure the volume or mass of oil. Can realize the mutual conversion of volume and mass. The main industrial oils are hydraulic oil. Gear Oil. Turbine oil. Compressor oil. Refrigeration oil. Transformer oil. Cylinder oil, heat Read More

3 inch (3″) Water Meter

Features of 3″ Water Meter 3″ water meter flow rate Caliber(mm) Inch Measurement grade Q3/Q1  m³/h Overload flow Q4m³/h Common flow Q3m³/h Boundary flow Q2m³/h Minimum flow Q1m³/h Minimum readingm³ Maximum reading 50 2 50 31.25 25 0.8 0.5 0.001 999999 Read More

2 inch Water Flow Meter

2 inch water flow meter also written as 2″ flow meter. If you are planning to buy a 2 inch water flow meter, please be sure to read this article. How much is a 2 inch water flow meter? And Read More

Industrial flow meters with analog output

Featured analog flowmeters Analog water flow meter Analog air flow meter Analog gas flow meter Analog diesel flow meter Read more about: Industrial flow meters for Different industrial applications FAQ Guess you like: Insertion Magnetic Flow Meter-Large diameter online install Read More

Digital air flow meters

First, We recommend a small digital airflow meter for you. Also called a portable gas mass flow meter. MF5700 series. MF5700 series portable gas mass flow meter is a digital air flow meter developed based on MEMS flow sensor chip. Read More

Inline water flow meters

Featured inline water flow meters Residential inline water flow meter The residential inline water flow meter is an essential thing in modern residents’ homes. The residential inline water flow meter is used to measure household water consumption. It is also Read More

Stainless steel flow meters

Stainless steel flow meter is the flow meter that has 304/316 stainless steel body. Common stainless steel liquid flow meters. such as stainless steel turbine flow meter, oval gear flow meter, sanitary flowmeters. Featured stainless steel flow meters for Sale Read More

Industrial Oxygen Flow Meters

Oxygen Flow Meters are digital flow meters that can measure industrial oxygen. It is very important to choose a suitable flow meter to measure and monitor the oxygen flow. Featured Industrial Oxygen Flow Meters for Sale Extended reading: Flow Totalizer Read More

Industrial CO2 flow meters

CO2 flow meters are instruments that can measure the flow of gaseous or liquid carbon dioxide. CO2 is a common industrial gas, and effective measurement is very important. CO2 gas flow meter Precession Vortex Gas Flowmeter, like a vortex flowmeter, Read More

Micro flow meters for low flow liquids

Micro flow meters for Low Flow Indicating is a big challenge for the manufacturing industry. The smaller the flow, the more difficult the measurement. Featured Micro flow meters for Sale Further reading: Industrial LPG/Propane flow meter Microflow meter is also Read More

Natural Gas Flow Meter Selection Guide

A natural gas flow meter is mainly used for inline measurement of natural gas flow. The natural gas flow meter is mainly used for industrial production and trade settlement. Featured Natural Gas Flow Meters Natural Gas Flow Meter Types The Read More

Sanitary Flow Meters for Sale

Common sanitary flow meters are sanitary magnetic flow meters and sanitary turbine flow meters. Composed of 304/316 stainless steel. A Sanitary flowmeter with Tri-Clamp fittings is easier to install and disassemble. Suitable for the food hygiene industry. Featured Sanitary Flow Read More

Slurry & Solids Flow Meters

Specifications of Slurry Flow Meter Measurement medium: mud, pulp, cement slurry Product classification: compact type slurry flow meter, Remote type slurry flow meter Measurement error: ± 1.0% or ± 0.5% Dielectric conductivity:> 5μs / cm Measurable velocity range: 0.1m / Read More

Compressed Air Flow Meter

Compressed Air Flow Meter, is the digital flow meter work for the air compressor. Air consumption is an important info for industrial inline gas flow pipe. According to the measurement conditions, compressed air flow meter could be different types. Thermal Read More

Rotameter flow meter price

Sino-Inst offers over 30 Rotameter flow meter products. About 50% of these are for liquids. 40% are for gas. At best price.

You can refer to the product price of the following Rotameter flow meter price:

Metal rotor flowmeter
Pipe size 1/2 inch
Medium: oxygen
FOB Price: USD 281.50/pc

A wide variety of Rotameter flow meter options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Rotameter flow meters, located in China.

The top supplying country is China (Mainland), which supply 100% of the Rotameter flow meter respectively.

Sino-Inst sells through a mature distribution network that reaches all 50 states and 30 countries worldwide. Rotameter flow meter products are most popular in Domestic Market, Southeast Asia, and Mid East.

You can ensure product safety by selecting from certified suppliers, with ISO9001, ISO14001 certification.

Please provide your measurement parameters or details. Sino-Instrument support customer customization and OEM
Rotameter flow meters for Sale|Manufacturer Best Price

A Rotameter flow meter is a variable area flow meter based on float position measurement. It is suitable for liquid and gas volumetric flow measurement and control.

Product SKU: Rotameter flow meter-Variable Area Flow Meters

Product Brand: Sino-Inst

Product Currency: USD

Product Price: 200

Price Valid Until: 2099-09-09

Product In-Stock: InStock

Editor's Rating:
5

Leave a Reply

Your email address will not be published. Required fields are marked *