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Flow Meter

Flow meter 1/4 inch


Here we introduce several kinds’ 1/4” flow meters for different fluids measurement, including liquid, gas or air. We offer several kinds 1/4 inch sized flowmeters: liquid turbine flow meter, magnetic flow meter, Coriolis flow meter, oval gear flow meter and thermal mass flow meter.1/4”flow meter sensor belongs to low flow flow meter .

1/4 inch turbine flow meter for clean and low viscosity flow measurement

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Turbine flowmeter is one type speed flow meter. When the measured liquid flows through the turbine sensor, the impeller is forced to rotate under the action of the media, and turbine flow meter sensor speed is proportional to the average flow velocity of the pipeline. At the same time, the blades are periodically cutting the magnetic field lines generated by the electromagnet, and the magnetic flux of the coil is changed. According to the principle of electromagnetic induction, an electric pulse signal is induced in the coil. The frequency of the electric pulsation signal is directly proportional to the flow of the measured fluid.

1/4” liquid turbine flow transmitter is used for low viscous and clean liquid, such as petroleum, organic liquid, inorganic liquid, solvent, ethanol, chemical additives solution .

1/4 inch electromagnetic flow meter for conductive liquid flow rate measurement

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The mag flowmeter uses Faraday's law of electromagnetic induction to determine the liquid flowing in the pipeline. In a full bore magmeter, a magnetic field is generated and directed to a liquid flowing through a pipe. According to Faraday's law, an electrode that detects a voltage signal resulting from the flow of a conductive liquid through a magnetic field is located on the wall of the flow tube. When the media moves faster, more voltage is generated. In the state of Faraday's law, the voltage generated is proportional to the voltage signal of the electron emitter of the moving liquid to determine the flow of the liquid for processing.

Compared with many other flowmeter technologies, the signal generated by magnetic type flowmeter technology has a linear relationship with the flow rate. Therefore, the range ratio to the inline mag flowmeter is close to 20: 1 or better.

1/4” mag flow sensor measure the velocity of conductive media, such as water, acid, caustic or other corrosive liquid. Mag flow sensor can measure the correct electrical conductivity of liquids that are more than about 5 S/cm. 1/4” sized Magnetic flow transmitter cannot measure liquid with low conductivity, such as deionized water, boiler feed water or hydrocarbons

1/4” sized oval gear flow meter for oil or other liquid measurement with high viscosity

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Oval gear flowmeter is a type of positive displacement meter. It is used for accurate continuous or intermittent measurement of liquid. It is especially suitable for flow measurement of high viscosity media such as heavy oil, polyvinyl alcohol, resin, etc. Microfluidic flow meter oval gear type can measure additive, perfume, distilled water or pure water measurement or used as low volume fuel flow meter

DN 6mm micro oval gear flow meter is with pulse output, the flow it can detect is 0.5-100 liter/h. this low flow flow meter can even reach to 0.5% high accuracy and the oval meter can max bear 50 bar operation pressure. The wet parts material for oval gear flow sensor is stainless steel 316L or aluminum.

1/4” Coriolis flow meter for fluids mass flow measurement

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  • Coriolis mass flow meter working principle is to make the lower part of U-shaped tubes vibrate slightly, thereby driving the straight tube part to vibrate. Coriolis flowmeter is a kind of direct mass flow measurements. It has good stability, good reliability, large turndown ratio, especially good for high viscosity fluids.
  • 1/4 inch mass flow sensor can detect liquid or gas mass flow with the high accuracy can reach to 0.1~0.2%.
  • 1/4” inline Coriolis flow meter transmitter can take mass measurement flow 0-100 kg/h, it has MODBUS , Pulse ,4-20mA current output options.



1/4” gas flow meter-Micro thermal mass flow meter

1/4 inch gas flow meter

Thermal flow meters use the principle of thermal diffusion. Thermal flow meter instrument uses the constant temperature difference method to accurately measure gas such as compressed air, air, nitrogen, helium, argon, carbon dioxide (CO2) and other pure gases.

Features of 6mm mini gas flow meter


  • No moving parts
  • Wide measuring range
  • Very high sensitivity, can measure ultra-small flow
  • Low pressure loss
  • Measure mass flow without temperature and pressure compensation, can directly display the standard volume flow
  • 1/4” low flow gas meter can detect flow up to 84000 ml/min, it is ml/min flow meter.
  • Inline microfluidic flow meter for gas mass flow measurement
  • Digital electronic gas flow meter with indicator to show gas mass flow and total flow


  • Micro-Flowrate Thermal Mass Flow MeterMicro-Flowrate Thermal Mass Flow Meter2018/03/02Micro-flowrate Thermal mass flow meter for DN3-DN10,China gas flow meter for LPG,biogas ,natural gas.etcview
  • Low Flow Liquid Turbine Flow meterLow Flow Liquid Turbine Flow meter2018/11/22Mini-flowmeter to measure Low flow rate from 0.035 L/min to 3 L/min for clean and non-corrosive liquids flow measurement.view
  • Low flow magnetic flow meterLow flow magnetic flow meter2019/07/11Low flow mag meters can handle liquid flowas low as to 0.33 LPM (0.09GPM), the mini mag flow sensor size we can provideis 1/8”,1/4”,3/8”,1/2”,3/4”. Micro flow magnetic flow meters are used widely...view
  • Micro low flow Coriolis flow meterMicro low flow Coriolis flow meter2019/06/05Micro Coriolis flow meter provides the accurate mass flow measurement of low flow fluids, the flow rate can be as low as 0~40 kg/hr, It is operated base on the Coriolis force principle, and mini mass ...view
  • Microfluidic Flow MeterMicrofluidic Flow Meter2019/07/05LC-M Series Micro oval Gear flow meter candetect ultra mini liquid flow as low as 0.5 ml/min, but can still keep accuracyas high as 0.5%F.S, It is a kind of positive displacement flow meter forprecise...view
  • Micro air flow meterMicro air flow meter2019/07/14Micro-flowrate thermal dispersion flow meter is designed on the basis of thermal dispersion, and adopts method of constant differential temperature to measuring air at very low flow. It has advantages...view
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