LC series oval gear flowmeter is a kind of positive displacement flow meter (PD flow meter); it is also a kind of in-line volumetric flow meter. Its measuring flow volume with two oval shape gear, Gear rotate when flow pass on measuring chamber and magnetic pickup sensor use for measuring quantity of rotation of gear, and each rotation equal to fix volume of fluid. Oval gear flow sensor has simple construction but rugged design to operate in harsh environment. This type oval flow meters is mainly used to measure fuel oil flow, gasoline, marine heavy oil, diesel, gear oil, molasses, sauces, molasses, syrups, resin, creams.,etc. Gear driven flow meter is widely used in industry ,marine, metallurgy industry. Oval gear flow sensor is a kind of economical and reliable solution for fuel and oil flow rate measurement.
Related article: [ Oval gear flowmeter overview ]
Oval Gear Type Flow Meter Working Principle
An oval gear type flow meter works on the simple mechanical action of liquid pushing a wheel. This principle was first demonstrated in the use of water wheels to grind grain.
The basic construction is two oval gears with interlocking teeth, one of which contains a magnet inside a robust housing. The metered liquid enters the chamber and pushes the gears round to exit the chamber. The precisely engineered gears rotate on a bearing and the magnet is resistant to chemical damage.
The liquid fills the spaces between the gear teeth and the outer wall of the casing. Capillary action provides a liquid seal meaning that the precise volume of liquid in the space is accurate and consistent. Each chamber is filled and emptied on a constant cycle – positive displacement.
Every rotation of the gears measures the same volume of liquid. A sensor on the outside of the chamber detects the pulse of the magnet moving past, counting the number of rotations. The number of rotations measures the volume of liquid passing through the oval gear flow meter. Want to know more about oval gear flow meter principle ? click here
Features of oval gear flow meter
✔ Perfect choice to use as high viscosity flow meter
✔ High accuracy flow meter: 0.5% or option 0.2%
✔ ml/min liquid flow meter option available, low flow liquid flow meter
✔ Can be made into in-line mechanical flow meter or with pulse or 4-20mA output
✔ Various materials available: cast iron, cast steel, stainless steel 304 or 316L
✔ No straight pipeline required when installing
✔ Sensor size from DN 2 to DN200 (8 inch oval gear flow meter)
✔ Low price cost oil flow meter, such as heavy oil, fuel oil, lubricating oil, light oil, diesel oil, palm oil, edible oil .,etc
✔mechanical oil flow meter
✔ Every flow meter is rigorously calibrated to ensure compliance with accuracy specifications. more information: [ OVAL GEAR FLOW METER FACTORY CALIBRATION REPORT SAMPLE]
Flow meter size, from DN2 ~DN200,different flow meter size , different prices.
Oval flow meter material: cast iron, cast steel,stainless steel 304 or stainless steel 316, different material different price
Oval gear flow meter functions also affect oval gear flow meter price.
a. Mechanical register or electronic type digital oval gear flow meter
with transmitter
b. Oval gear digital meter option with Output: 4~20mA ,HART, Pulse or RS485
c. High viscosity type oval gear flow meter or high temperature type
oval gear flow meter<
d. High pressure oval gear flow meter or not
However , Silver Automation Instruments supply cheap and low cost oval meter from reliable oval gear flow meter manufacturers with fast deliver time.
Oval Gear Flow Meter Applications
For applications in the fuel and oil industries, oval gear flow meters are the best option for accurate volumetric measurement of a variety of industrial fluids. These positive displacement meters, which are built to last, are excellent at tracking the flow of fuel, including gasoline and different types of fuel oils with mechanical register or digital display. They work especially well with difficult media like heavy oil and diesel because of their sturdy construction, which guarantees dependable operation even at high temperatures and pressures. They are also essential in chemical processing and manufacturing facilities due to their remarkable capacity to measure high viscosity liquids, such as lubricants, molasses, and resins. Oval gear flow meters provide the repeatable, high-accuracy results required for streamlining operations and upholding quality control, whether you're controlling the blending of thick additives or managing fuel consumption in a fleet of vehicles.
Main Types and Materials of LC Oval gear Flow meter and different applications
LC-A:Cast-iron Oval Gear Flow meter, applied widely for high viscosity fluids or other medium which is not corrosive to cast iron material; Cast iron oval gear flow meter is suitable for liquid flow measurement of naphtha, kerosene, diesel, heavy oil, lubricating oil, paraffin, asphalt, fuel oil, hydraulic oil
LC-E:Cast-steel Oval Gear Flow meter, applied in the low-corrosive fluids with high pressure. Cast steel material oval gear flow meter is suitable for crude oil, aniline, kerosene, crude oil, fuel oil, diesel, lubricating oil, hydraulic oil, asphalt flow measurement
LC-B, C:Stainless steel Oval Gear meter, applied to strong corrosive fluids such as acid, alkali, salty or organic chemicals. Stainless steel oval gear flow meter is suitable for water, ammonia, caustic soda, acetic acid, acrylic acid, ethanol, sulfuric acid, phosphoric acid, ammonium nitrate, fruit juice,vegetable oil, peanut oil, olive oil, edible oil, milk beer, butadiene, toluene, xylene, LPG flow measurement.
Oval Gear Flow Meter Advantages
Once installed, an oval gear flow meter
works accurately without maintenance for many years. It has a minimum number of
moving parts and operates by the mechanical flow of liquid.
The oval gear flow meter is built to
withstand harsh environmental conditions and gives a high level of accurate
metering for the chosen liquid. The simple mechanical construction deals well
with changes in temperature, pulsating flow, and changes in viscosity. Oval gear flowmeter is often used in Marine & Shipping Industry to measure marine fuel, heavy oil,engine oil flow rate.
The robust, long-lived oval gear flow transmitter is
an economical method of measuring fluid flow with no running costs.
The installation of an gear type flow meter
is straight forward, and it can be positioned in awkward spaces because it does
not need a straight pipe run. The fluid measurement is in regular operation (no
need to divert into a separate area), which means the oval gear flow meter
integrates into any industrial process.
Oval flow meters are simple to construct but very versatile in size and use of materials, and they measure fluids accurately, consistently and work for years without needing maintenance.
Resettable and non resettable mechancial flow meter
How to choose different type display, you want mechancial dial flow meter or you want resettable total flow meter or PD flow meter with pulse or analog output?
Below picture tell you resettable and non resettable flow meter difference.
How to Set Up and Operate an Oval Gear Flow Meter
Your oval gear flow meter's high accuracy can only be unlocked with proper installation. One of the primary benefits of this positive displacement meter is that it can be installed in both vertical and horizontal pipelines without the need for straight pipe runs, which makes it perfect for confined spaces. Make sure the pipeline is clean prior to installation. Upstream of the meter, a mesh strainer (usually 100 mesh or finer) must be installed to shield the precision gears from solid particles, which are the most frequent source of damage.
Because the oval gear flow meter relies on the precise meshing of its gears to measure flow, it is not suitable for liquids containing suspended solids, abrasive particles, or large amounts of impurities. Such contaminants can cause wear or jamming of the gears, leading to inaccurate measurements and potential damage to the meter. Always ensure the fluid is filtered and free of debris before entering the meter.
Click here to get more inforamtion about principle of oval gear flow meter ,then you can understand why it needs clean liquid to be measured. [Oval Gear Flow Meter Working Principle ]
An air eliminator and strainer are essential for oval gear flow meters to ensure accurate measurements. They remove entrained air and solid particles from the liquid before it enters the meter. This prevents gear damage and measurement errors. Product informaiton: [Air eliminator and strainer]
After installation, follow the wiring diagram to connect the power supply. Attach the signal wire to your PLC or display if the model has a pulse output. The meter is easy to use; it starts measuring flow as soon as it is powered on. The cumulative totalized volume and the current flow rate will be shown on the local display.
Related article: [How to install and use of oval gear flowmeter ? ]
Choosing the Right Oval Gear Flow Meter
Selecting the correct flow meter is essential for maintaining accurate, efficient, and safe operations. Oval gear flow meters are a leading choice for many industries, offering exceptional accuracy and dependability, especially when measuring viscous fluids such as oils, fuels, and chemicals. Because they directly measure volume by trapping liquid between rotating gears, their precision is largely unaffected by changes in fluid properties.
However, with numerous options available, choosing the perfect one can feel overwhelming. To help, we have developed a straightforward guide that simplifies this critical decision. Our guide details a four-step process, covering everything from analyzing your fluid's characteristics—like viscosity and chemical compatibility—to defining your system's flow rate, choosing the right display, and identifying any necessary certifications.
Oval Gear Flow meter is for diesel, crude oil, resin, fuel, heavy oil flow measurement. PD flow meter is with mechanical register or digital display, Inquiry Price now.
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