How to measure low flow? We all know that whether it is gas or liquid, the smaller the flow, the more difficult it is to measure. Micro Flow-Ultra Low Flow Measurement is involved in various industries.
Sino-Inst has a variety of flow meters that can be used for low flow gas and liquid monitoring, including mass flow meters, gear flow meters, variable area flow meters, thermal flow meters, etc. Today, we specifically analyze some commonly used low flow liquid measurement solutions.
Challenges of Liquid Low Flow Measurement
The measurement of tiny flow is widely used in many industries. The smaller the flow, the harder it is to measure. This is also a big challenge for instrument manufacturers.
In the selection of flowmeters for measuring small flows, there are the following points for attention.
- Instrument performance. It refers to the accuracy, repeatability, linearity, turndown ratio, pressure loss, initial flow rate, output signal and response time of the instrument. When selecting a flow meter, the above indicators should be carefully analyzed and compared.
- Economic factors. Refers to the purchase fee, installation fee, maintenance fee, calibration fee and spare parts. It is also affected by the performance, reliability, and life of the flowmeter.
- Installation conditions. Refers to the fluid flow direction, pipeline direction, upstream and downstream straight pipeline length, pipe diameter, spatial position and pipe fittings, etc.
- Fluid properties. Mainly refers to pressure, temperature, viscosity, etc.
- Accuracy grade and function. Choose the accuracy level of the instrument according to the measurement requirements and usage occasions to achieve economical results.
Types of Low Fow liquid flow meters
Today, there are countless types of Low Flow flow meters, as many as dozens. The measurement medium also widely includes liquid (liquid), gas, oil, viscous medium, corrosive medium, etc. It can be measured with a small flow meter. There are still many small flowmeters for liquid measurement, some of which not only have high precision but also high stability.
New Product – GF Series Gear Flow Meter
The original design intention of the GF Series Gear Flow Meter is for industrial micro flow measurement. The smallest model, GF02, can measure tiny flows of 0.6-50 L/H.
The micro flowmeter is a volumetric flow transmitter based on a gear flow transmitter.
Inside the metering chamber are two circular gears. The gear meshes and rotates with the flow of the medium. Under the action of fluid flow, a pressure difference is formed at both ends of the meter inlet and outlet. No power is required, and a pair of gears rotate freely. The cavity between its gears is filled with liquid, which is discharged as it rotates. Measuring the number of rotations of the gear can know the liquid flowing through the instrument, and the flow of the liquid can be used for micro flow measurement.
More about GF Series Gear Flow Meter Specifications.
In addition to the commonly used small flow liquid flow meters mentioned above, we at Sino-Inst also supply flow meters for low gas flow.
Technical Advantages of Gear Flow Meter Measuring Low Liquid Flow
- The greater the viscosity of the medium, the smaller the leakage from the gap between the gear and the metering space. Therefore, the greater the viscosity of the measured medium, the smaller the leakage error. It is more beneficial to the measurement.
- Small size, light weight, low vibration and noise during operation.
- Fluids with viscosities up to 10000Pa.s can be measured;
- The measurement accuracy is 0.5 and 0.2. Wide measurement range up to 100:1
- There are general type, high pressure type (40mPa), food type and so on.
- Standard fluids operation temperature : -15-80°C, Special request for fluids temperature :-196°C~200°C;
- Suitable for small flow measurement of various cleaning liquids.
- No straight runs are required.
- Suitable for pulsating fluid measurements.
- It can be used for quantitative addition of micro amount and short time
Read more about: Flowmeters for Cryogenic Fluids Flow Measurement
Low Flow liquid flow meter- drop water can be measured
Applications
Measurable medium:
- Resin, glue measurement,
- Hydraulic oil, lubricating oil, grease measurement,
- fuel oil measurement,
- Inks, bitumen measurement,
- Liquid nitrogen, freezing liquid, solvent measurement,
- Edible oil, fish oil and food filling measurement,
- Chemical and anti-corrosion requirements fluid measurement,
- Dye Measurements
- Fluid Quantitative Control System
More Featured Liquid Flow Meters
- Case: Flow Meter for Liquid Cement Additive
- Cryogenic Flow Meters Custom Cases
- Customer Case: Customized DN10 Flow Meter for Petrol
- Variable Area Flow Meter Case: Oxygen Flow Measurement
- Insertion Magnetic Flow Meter | Better Solution for Large Diameter Pipes
- Gear Flow Meter Technologies: Oval, Spur, and Helical
GF Series Gear Flow Meter is a new type of volumetric flow transmitter, used for precise continuous or intermittent measurement of liquid flow or instantaneous flow in pipelines.
GF Series Gear Flow Meter is especially suitable for flow measurement of heavy oil, polyvinyl alcohol, resin and other media with high viscosity. (Fluid with viscosity up to 10000Pa.s can be measured).
Sino-Inst’s flow meters for Micro Flow-Ultra Low Flow, made in China, have good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, the US, and other countries.
If you need to measure tiny liquid flow, please feel free to contact our sales engineers!