What is a low flow meter?

Low Flow Meters refer to those flow meters that can be used to measure micro-flow-low-flow rate media. Including metal rotor type, gear type, electromagnetic type microflow meter, microturbine type, and thermal type small mass flow meter. It can measure the Low flow rate of a variety of liquids and gases. For example, it needs small volume, high-temperature resistance, low-temperature resistance, or medium viscosity. etc. We all have suitable product recommendations.

What is a low flow meter?

Sino-Inst specializes in low flow meters for micro to low flow rates. We offer:
Ultrasonic flowmeter can measure low flow rates from 0.1m/s to 5.0m/s.
The gear flowmeter can measure the microflow rate from 0.01 to 0.83.
Coriolis mass flow meters and controllers from 10SCCM~30SLM.
Below, we also introduce a lot of flow meters. based on vortex, electromagnetic, ultrasonic, and positive displacement, etc.

Flow range of flow meters

First, let’s take a look at the low flow rate measurement range of conventional flow meters.

Flow meterMediaDNFlow Range (m³/h)L/min 
Electromagnetic Flowmeterliquid150.19~3.18 3.166~53
Turbine flowmeterliquid40.04~0.250.666~4.166
Vortex FlowmeterGas; liquid153~15;0.3~550~250; 5~83.30
Precession Vortex Gas Flowmetergas151~716.66~116.666
Ultrasonic Flow Metersliquid150~±12m/s
Differential Pressure Flow MetersLiquid; gas150.8m/s
Oval gear flowmeterliquid100.03-0.2  0.5~3.33
Gear flow meterliquid20.0006~0.0500.01~0.833
Coriolis Mass FlowmeterLiquid; gas30~96~144 kg/h
Thermal gas mass flow metergas60.1~120Nm/s
Metal rotor flowmeterGas; liquid150.07~0.7; 2.5~251.166~ 11.66;41.666 ~416.66

Low flow meters for Liquids

Model Measure Range    L/HMeasure Range L/min
ProductStrap on Flowmeter
Flow range0.1m/s~5.0m/s
Pipe sizeφ6.35~φ90
MoeldX3-φ6.35X3-φ9.53 X3-φ12.7X3-φ15X3-φ20X3-φ25

Mini Turbine Flowmeter
Mini Turbine Flowmeter
Measuring range
MaterialShell: brass nickel plated/brass/plastic
Bearing: INO×18/8 (1.4305) stainless steel
Impeller: PVDF (polyvinylidene fluoride)
Magnet: SrFeO ceramic, ultrasonic welding
sealMVQ (silicone rubber “O” ring)
temperature range-10℃~+100℃
Accuracy class±2%
Repeat accuracy±0.20%
Pressure rangeMaximum 2MPa
Installation methodHorizontal installation
Dimensions (L×B×H)40×55×40mm
connectMPM connector
Provide power4.5~24VDC
OutputOpen collector
Maximum (extra) voltage output25VDC
Maximum current output25mA
ThreadG1/8 or G1/4
Threaded micro flow target type flowmeter
Threaded microflow target type flowmeter
Pipe diameter:DN6mm—50mm (threaded type)
Accuracy:±0.2/ ±0.5/ ±1.0 (liquid flow meter);
±0.5/ ±1.0/ ±1.5 (gas flow meter)
temperature:-196°C to +700°C.
pressure:Negative pressure -70Mpa
Measuring range ratio:1:100 times; 1:50 times; 1:30 times; 1:10 times
Flow range:Liquid: DN6 to DN80 starting at 0.1L/h (ultra-small flow);
Gas: DN6 to DN80 starting at 15L/h (ultra-small flow);
Measuring rangeLow range: 10SCCM~30SLM
Medium range: 30SLM~300SLM
Large range: 500SLM~3000SLM
Accuracy (under standard conditions after zero adjustments)±1%F.S
Zero drift & full-scale drift0.02%F.S/C/Atm
Working range/range adjustable ratio2%~100%F.S/50:1
Maximum measurable flow100%F.S (controllable)
Typical response time200 milliseconds (adjustable)
Start-up warm-up time<5 seconds

Extended reading: Micro flow meters for low flow liquids

Low flow meters for Gas

ModelCaliberMechanical interfaceFLow Range: SLPMFLow Range: NCMH

Measuring medium:Various gases (except acetylene gas and mixed gas)
Measuring pipe diameter:DN3, 6, 8, 10
Flow range:30, 60, 80, 100, 300, 600, 800, 1000 sccm;
10, 20, 30, 50, 80, 100 SLPM 
Flow measurement accuracy:±1.5%FS; ±2.5%FS
range of working temperature:-25℃-55℃
Working pressure range:0.3MPa, 0.6MPa, 1.0MPa
Power supply:24VDC±10%;
output signal:4-20mA, RS485 communication;


  • Coriolis Meters.
  • DP Meters.
  • Magnetic Meters.
  • Multiphase Meters.
  • Turbine Meters.
  • Ultrasonic Meters.
  • Vortex Meters.

Extended reading: How does a rotameter work

The water flow meter is an instrument specially used to measure the flow of water in pipes. You can get many different types of water flow meters from your facility.

When used in certain applications, each flow meter has its own advantages. For many pipelines and similar systems, the water must be maintained at a specified flow rate to ensure the effective operation of the system.

Read more: Digital Water Flow Meters

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Extended reading: Gas Rotameter Tips

Sino-Inst, Manufacturer for Low Flow Meters. For example crude oil flow meter, diesel flow meter, gasoline flow meter.

Sino-Inst’s Low Flow Meters, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, the US, and other countries.

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