GF Series Gear Flow Meter

Gear Flow Meter is a new product of ours. Gear Flow Meter is a type of positive displacement flow transmitter. It is a transmitter for measuring volume flow with high precision. Installation restrictions are smaller.

Compared with oval gear flow meters, GF Series Gear Flow Meter has more advantages in measuring micro flow. There are aluminum alloy material, stainless steel material. Hydraulic oil, diesel oil, and even high viscosity fluids can be measured. There is a new type of PTFE material, which can withstand hydrofluoric acid, 98% sulfuric acid, nitric acid, hydrochloric acid, etc.

Features of Gear Flow Meter

  • High pressure resistance (1.0-45MPa)
  • High and low temperature resistance (-196°C-200°C)
  • Can measure various viscous media
  • High precision and repeatability
  • Pulse output/analog output optional
  • Wide range ratio (1:100)
  • Wide measurement range
  • Strong anti-corrosion and anti-fouling ability (acid-alkali liquid)

Specifications

Model Measure Range K Pressure-Bar Temperature Accuracy Interface Installation dimensions
L/H P/L Aluminum alloy stainless steel
GF02 0.6-50 10500 150 400 -15-80
-196
-200
+/- 0.5%
( Range 1:10)
+/- 1.0%    (Range 1:100)
G1/8 Φ84*55
GF04 5-250 9117 150 400 -15-80
-196
-200
G1/4 Φ84*55
GF06 10-500 3000 150 400 -15-80
-196
-200
G1/4 Φ84*67
GF10 50-1200 1280 150 400 -15-80
-196
-200
G1/2 Φ84*67
GF15 200-3000 126.75 150 400 -15-80
-196
-200
G3/4 Φ116*98*74
GF25 1000-12000 61.1 150 400 -15-80
-196
-200
G1-1/2 158*118*68
GF32 2000-20000 59.9 150 400 -15-80
-196
-200
G1-1/2 158*18*68

Gear Flow Meter Applications

  • Resin, glue measurement
  • Hydraulic oil, lubricating oil, grease measurement
  • fuel oil measurement
  • Ink, bitumen measurement
  • Liquid nitrogen, cryogenic liquid, solvent measurement
  • Edible oil, fish oil and food filling measurement
  • Chemical and anti-corrosion requirements for fluid measurement
  • Fluid Quantitative Control System
Gear Flow Meter Applications

GF Series Gear Flow Meter is especially suitable for flow measurement of heavy oil, polyvinyl alcohol, resin, glue, edible oil, dyes and other medium with high viscosity. It can measure fluid with viscosity up to 10000Pa.s.

The gear flowmeter with aluminum alloy main body can withstand the pressure of 1.6 MPa;
The gear flowmeter with the main body of PTFE can withstand the pressure of 0.6MPa;
The gear flowmeter with the main body made of stainless steel can withstand the ultra-high pressure of 40~45MPa.

Cryogenic Liquids - Liquid Nitrogen - Liquid Oxygen -196℃

There are many customers who use our low temperature type GF Series Gear Flow Meter to measure cryogenic liquids.
Such as -196 ℃ liquid nitrogen, liquid oxygen, liquid hydrogen, liquefied carbon dioxide and so on. The measurements are good.

If the flow range is larger, it can be measured with a low temperature turbine flowmeter.

GF Series Gear Flow Meter can measure the tiny flow of 0.6-50L/H.
Even drips are measurable.

gear flow meter working principle

Gear Flow Meter is a type of volumetric flow transmitter. It is a transmitter for measuring volume flow with high precision.

With the flow of the medium, the gears mesh and rotate. Under the action of the fluid flow, a pressure difference is formed at both ends of the meter’s inlet and outlet. No power supply is required, and a pair of gears rotate freely. The cavity between the gears is filled with liquid, and the liquid is drawn by Discharge. Measuring the number of revolutions of the gear can know the flow of liquid and liquid flowing through the instrument.

gear flow meter working principle

The speed of the Gear Flow Meter is detected by the sensing coil in the signal amplifier installed on the case. The signal amplifier is not in contact with the measured medium.

When the transmitter gear cuts the magnetic field lines generated by the permanent magnet in the housing, it causes a change in the magnetic flux in the sensing coil.

The sensing coil sends the detected magnetic flux periodic change signal to the preamplifier. The signal is amplified and shaped to generate a pulse signal proportional to the flow velocity. It is sent to the unit conversion and flow integration circuit to obtain and display the cumulative flow value.

At the same time, the pulse signal is also sent to the frequency current conversion circuit, which converts the pulse signal into an analog current, and then indicates the instantaneous flow value.

Gear Flow Meter has high processing precision and precise installation. The rotation of the gear is scanned non-contact. Each tooth produces a pulse with very high resolution. Spur gear transmitters can measure very small flow rates and quantify small volumes of liquid.

Frequently
Asked
Questions

If flow meters are to be divided into three categories. Then I will divide the flow meter into velocity flow meter, volume flow meter and mass flow meter.

Our commonly used turbine flowmeters, electromagnetic flowmeters, etc. are volume flowmeters.

Oval gear flow meters are flow instruments that measure volumetric flow with high precision. It works on the principle of positive displacement. The flow of medium turns the gears. The rotation of the gear is scanned by 2 non-contact pulse detectors. Each tooth generates a pulse. , which is finally generated from the frequency signal proportional to the flow rate, and then the flow value Q is obtained.

The oval gear flowmeter has high processing precision, precise installation and high resolution. The oval gear flowmeter requires the measured medium to be lubricating. Non-lubricating media such as water cannot be measured.

At the same time, the oval gear flowmeter is not suitable for fluids containing solid particles. If there is gas in the measured liquid medium, it will also cause measurement errors.

Advantages of oval gear flow meters:

  1. The measurement accuracy of the oval gear flowmeter is high. The basic error is generally ±0.5%R, and the special one can reach ±0.2%R or higher. It is especially suitable for use in the field where high precision measurement is required.
  2. There is no influence on the measurement accuracy when measuring the distortion of the flow velocity field of the swirling flow and the flow resistance of the pipeline. There is no requirement for the leading straight pipe section.
  3. The oval gear flowmeter can be used for the measurement of high viscosity fluid. Wide flow range, generally 10:1 to 5:1, special up to 30:1 or greater.
  4. It can directly read the on-site flow. Cumulative totals can be measured without an external power supply. Clear display and easy operation.

Disadvantages of oval gear flow meters:

  1. The structure of the oval gear flowmeter is complex, bulky and heavy. Especially larger diameter oval gear flowmeters are bulky.
  2. Due to the thermal expansion and deformation of parts at high temperature, the material becomes brittle at low temperature and other problems. Oval gear flowmeters are generally not suitable for high and low temperature applications.
  3. Most oval gear meters are only suitable for clean single-phase fluids. When there are particles and dirt, a filter needs to be installed upstream, which not only increases the pressure loss, but also increases the maintenance work. If the liquid containing gas is measured, a gas separator must be installed.
  4. The oval gear flowmeter has poor safety, such as the detection of moving parts stuck. The fluid cannot pass through, and the shut-off piping system cannot be used.
  5. Some oval gear flowmeter instruments will bring pulsation to the flow during the measurement process. Larger gauges also generate noise. Even the pipes vibrate.

Ultrasonic flowmeters use sound waves to determine the velocity of a fluid flowing in a pipe.

At no flow conditions, the frequencies of an ultrasonic wave transmitted into a pipe. And its reflections from the fluid are the same.

Under flowing conditions, the frequency of the reflected wave is different due to the Doppler effect. When the fluid moves faster, the frequency shift increases linearly. The transmitter processes signals from the transmitted wave and its reflections to determine the flow rate.

Transit time ultrasonic flowmeters send and receive ultrasonic waves between transducers in both the upstream and downstream directions in the pipe.

At no flow conditions, it takes the same time to travel upstream and downstream between the transducers.

Under flowing conditions, the upstream wave will travel slower and take more time than the (faster) downstream wave.

When the fluid moves faster, the difference between the upstream and downstream times increases. The transmitter processes upstream and downstream times to determine the flow rate. They represent about 12% of all flowmeters sold.

Read more about: Water Flow Measurement Solution-Ultrasonic Flowmeter

More Featured Liquid Flow Meters

Sino-Inst, Manufacturer for GF Series Gear Flow Meter for Microflow. For example crude oil flow meter, diesel flow meter, gasoline flow meter.

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).

GF Series Gear Flow Meter is small in size, light in weight, low in vibration and noise and stable in operation. It can also be used to measure small flow rates with small pipe diameters. The initial flow rate is small and the range ratio is wide. It is suitable for measuring compliance with large changes. liquid flow.

The measurement accuracy of GF Series Gear Flow Meter is not affected by pressure and flow changes, stable performance, long life and large flow capacity

Sino-Inst’s GF Series Gear Flow Meter for Microflow, 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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    GF Series Gear Flow Meter - New Product for Micro Flow

    Gear Flow Meter is a new product of ours. Gear Flow Meter is a type of positive displacement flow transmitter. It is a transmitter for measuring volume flow with high precision. Installation restrictions are smaller.

    Product SKU: GF Series Gear Flow Meter

    Product Brand: Sino-Inst

    Product Currency: USD

    Product Price: 780

    Price Valid Until: 2029-09-09

    Product In-Stock: InStock

    Editor's Rating:
    5

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