Inline water flow meters

Inline water flow meters-ultrasonic

Inline water flow meters are instruments that can be installed directly on water flow pipes to display flow. In principle, there are mechanical, ultrasonic, electromagnetic, and so on. Used in residential water pipes or industrial water pipes.

An inline flow meter is a flow meter with the function of displaying flow rate on-site. The sensor of the flow meter is installed on the fluid pipe. Digital display or pointer shows the flow rate on the spot.

In-line flowmeters could be digital and mechanical flow meters. Common in-line flowmeters include turbine flowmeters, electromagnetic flowmeters, and ultrasonic flowmeters. With stainless steel material, analog, and 4-20mA output, in-line flow meters can measure and control inline flow.

Read more: Choose the most suitable Inline flow meter

Featured inline water flow meters

Strap on flow meter X3

 External clamp-on flow sensor. Easy to install. Suitable for measuring pipe diameter Φ9.53~Φ90.

Ultrasonic Water Meter for Residential Water

DN15-DN40, RS485. LORA/ NB-IoT, WIFI, Output MBUS, MODBUS, ASCII, CJ188 are optional.

Sandwich-type Insertion Ultrasonic Water Flow Meter

DN50-DN150. New type. The thickness is only 50mm.

Dual Channel Ultrasonic Water Meter

Can be battery-powered and wireless. For residential water, urban water, industrial water management.

In-Line Ultrasonic Flow Meter

DN15-DN6000, InLine Ultrasonic Flow Meter Reference price: USD 470.00/pc

Insertion Magnetic Flow Meter

 Suitable for large diameter DN300-3000. Insertion magnetic flowmeter can be installed without stopping the flow.

Liquid Turbine Flow Meter

DN4~DN200. Liquid Turbine Flow Meter reference price: DN100. USD 600-700/pc.

Turbine Sanitary flow meter

DN4-50mm. Sanitary Turbine Flow Meter reference price: DN100. USD 300-700/pc.

Magnetic Water Flow Meter

DN15~DN3000, Conductive liquids such as drinking water, sewage, wastewater, seawater, ammonia, cement slurry, etc.

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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 the basis for the water company’s charges.

Domestic inline water meters are provided and installed by the water supply company.

The price of the water meter is determined according to the function of the water meter. At present, the water meters on the market are divided into mechanical water meters, IC card water meters, remote water meters, photoelectric direct reading water meters, NB-IoT Internet of things water meters, etc. The prices are different for different levels.

Generally speaking, the price of mechanical water meters is relatively cheap. The price of smart water meters is more expensive. At present, the relatively new type is the NB-IoT remote transmission water meter, which is convenient for meter reading, mobile phone operation, no wiring, and wireless transmission of signals.

Read more about: How does a residential water meter work?

  1. Divided according to the functions used, the smart IC card water meter is more commonly used now. That is to say, this smart water meter has an IC card inserted into the water meter. You can query the water consumption at home and the water bill.
    • And one of its biggest features is that it can pay water charges in advance. It can also solve the trouble of water company charges. Before, it was necessary for staff to go door-to-door to read the meter. With this smart IC card, it can be inquired remotely.
  2. Now a remote water meter has been developed. According to its literal meaning, it can also be understood that this kind of water meter is also very intelligent. There is no need to go to the house to read the meter. The staff can understand the water consumption of each customer in the office. It also brings a great deal to the water supply company. Convenience. Solved the problem of a nuisance to the people.
  3. Intelligent valve-controlled water meter. One of the bright spots of this type of water meter is that you need to pay money before you can use it. It is very useful for users who are in arrears of water bills. It is also tailored for these users. And it can be controlled remotely and is very intelligent.
  4. According to the nature of the water meter, it can be divided into rotor wet water meter or dry water meter, or speed water meter, volume water meter, and so on.

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Industrial inline water flow meter

Industrial inline water flow meters are more complicated than residential water meters. Because residential water is mainly used to measure tap water. Industrially, it is necessary to measure water, including raw water, wastewater, condensed water, and various aqueous solutions.

Extended reading: 2 inch Water Flow Meter

You can refer to the following to select the appropriate Industrial inline water flow meter.

Industrial Magmeters

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Mechanical water flow meter

A mechanical water flow meter relies on the kinetic energy of the water flow to drive the metering mechanism to work. The water flowing through the water pipe impacts the water meter impeller and then drives the gear to rotate, without electricity.

The mechanical water flow meter is currently used less, mainly due to the following reasons:

There are many vulnerable parts, and the existence of the movable part impeller is easy to cause fouling of itself and the measuring cavity. Even blockage, especially when the water quality is poor. Therefore, the reliability and stability of the work are relatively low;

The movable part of the impeller shaft core is easy to wear after a long time or high flow rate operation. Especially when the water quality is corrosive. Therefore, the durability of work is low, and the service life is relatively short;

The presence of the impeller in the measurement chamber will produce a large pressure loss. Reduce the transmission capacity of the heating pipe network. In particular, it brings difficulties to the transformation of the old pipe network;

The accuracy of flow measurement is relatively low. There are also certain requirements for the flow rate of the fluid. Can not effectively measure when the flow rate is low.

Read more about Sanitary Flow Meters-316SS, Tri clamp-Pulse- for Brewery

Digital flow meter

Compared with a Mechanical inline water flow meter, a Digital flow meter makes it easier for users to obtain flow information.

Digital flow meter generally has a digital display. The traffic can be displayed locally. Including instantaneous flow and cumulative flow. It can even display information such as pressure and temperature.

Digital flow meter generally also supports remote data transmission. Digital flow meter outputs pulse, 4-20mA, and other signals. Support HART, RS485, and other protocols. Even wireless remote transmission.

Read more about Digital Flow Meters


The flowmeter is produced according to the user’s measurement parameters. Therefore, the price of the flowmeter is different for different measurements.

Important factors when selecting flow metering devices are

  • accuracy
  • cost
  • legal constraints
  • flow rate range
  • head loss
  • operating requirements
  • maintenance
  • lifetime

These factors are more or less related to each other. For example – the cost of flow meters increases with accuracy and lifetime quality.

Extended reading: Featured Cheap flow meters for Sale

The general measurement is to use an electromagnetic flowmeter.

Magnetic flowmeters use the principle of Faraday’s Law of Electromagnetic Induction to measure the flow rate of liquid in a pipe. In the magnetic flowmeter pipe parts, a magnetic field is generated and channeled into the liquid flowing through the pipe.

As fluid flows through the magnetic field, conductive particles in the fluid create changes. This variation is used to measure and calculate the velocity of water flow through the pipe. When the fluid moves faster, more voltage is generated. The electronic transmitter processes the voltage signal to determine the liquid flow.

Read more about Digital Water Flow Meters

Flowmeter usually refers to industrial flow meters. Water meter usually refers to the residential water meter.

Industrial VS residential digital water flow meter

1. From a functional point of view. Industrial digital water flow meter mainly measures instantaneous flow. It is a real-time state. It can understand the usage of each site. And can output pulses, 4~20mA, etc. The residential digital water flow meter is mainly a cumulative function, generally cannot see the instantaneous flow.

Extended reading: Ultrasonic water meter working principle

2. From the cost point of view. The manufacturing cost of the Residential Digital Water Flow Meter is relatively low. The cost of an Industrial Digital Water Flow Meter is generally relatively high.

3. In terms of quality. Relatively speaking, the Residential digital water flow meter has poor accuracy. It cannot withstand high pressure and high temperature, and cannot output linear signals. It cannot participate in the automation control of modern industry. The industrial digital water flow meter can do the above.

4. From the point of view of usage. Residential digital water flow meter only measures water and is not used to measure gas. And some liquid media water meters cannot be used. Industrial digital water flow meter liquids (water, oil, turbid liquids, etc.) can be measured.

Of course, Residential digital water flow meters can realize various functions such as prepayment. Remote data transmission. Remote valve control. Step water pricing, etc. It is a must-use metering product for residential homes.

Extended Reading: Inline Ultrasonic Flow Meter

Extended reading: Industrial Magmeters

Sino-Inst offers over 30 Inline water flow meters products. About 50% of these are magnetic flow meters. 40% are water meters (like the ultrasonic flow meter), and 40% are water treatment (like the Annubar flow meter ).

A wide variety of Inline water flow meters options are available to you, such as free samples, paid samples.

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

The top supplying country is China (Mainland), which supply 100% of the Inline water flow meters respectively.

Sino-Inst sells through a mature distribution network that reaches all 50 states and 30 countries worldwide. Inline water flow meters 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.

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About KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects. Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.