Oval Gear Flowmeter

General Description of Oval Gear Flowmeter

LC Oval gear flowmeters are instruments used for the continuous and intermittent flow measurement and control of the pipe liquid flow, which are typical of positive displacement flow meter (pd meter), feature large flow range, low pressure loss, for high viscosity fluids, easy installation, high accuracy and can use as high viscosity flow meter, marine fuel flow meter, oil flow meter, high temperature flow meter.,etc.

LC oval flow meters are fitted with mechanical pointer and register which can indicate the liquid flow and totalized flow passing through the pipeline, it is a mechanical flow meter, but it can also be equipped with digital display or analog/pulse output. Customized flow meters can be made of different materials (cast iron, cast steel, stainless steel etc.). LC Oval gear flowmeters are widely used for the flow measurement in the field of petroleum, chemical, chemical fiber, traffic, food industries and commerce, medical and sanitary departments.

We are China oval gear flow meter manufacturers provides low cost oval meter, but also with fast delivery time with custom oval gear meter of different technical specifications. Welcome to send your inquiry to us for oval gear flow meter price.

Technical Specification of Oval Gear Flowmeter from SILVER AUTOMATION INSTRUMENTS

Ø General Specifications of Oval Gear Flowmeter

Ø Main Types and Materials of LC Oval gear Flow meter

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;

LC-E:Cast-steel Oval Gear Flow meter, applied in the low-corrosive fluids with high pressure.

LC-B, C:Stainless steel Oval Gear meter, applied to strong corrosive fluids such as acid, alkali, salty or organic chemicals.

Main parts material and Nominal operation pressure of oval wheel flow meter

Ø Oval Gear Flowmeter range and Viscosity

Note:  when the viscosity is over 200 mPa. S, it belongs to high viscosity fluids. Contact Silver Automation Instruments , if you have fluids with visvosity over 2000 mPa.s, we also have very good solution for very high visvosity flow measurmenet.
The elliptical gear flow meter is suitable for high-viscosity liquids. Different media have different viscosities, and you might still be unclear about the concept of viscosity. The following video can introduce you to the different states that liquids exhibit across various viscosity ranges.

Model Selection of Oval Gear Flowmeter

• *1 : T/T1/T2 : High temperature
• T: High temp 60-120°, only for mechanical register without output, no radiator
• T1: High temp 120-200°,with long radiator
• T2: High temp 60-120°C, with short radiator ,for flow meter with output
• Models Selection Sample:
• LC-T1E80.3/A6BGF-II
• LC-Oval Gear Flow meter
• T1- High temp 120-200°, with long radiator
• E-Cast Iron Material
• 80-Flow metrer size 80mm 3 inch oval gear flow meter
• .3/-Pressure rating: 2.5Mpa
• A6- Mechanical pointer, 6 digits totalizer , return to zero
• BGF-II- Only for A or A6 register, Pulse output,3-wire, Explosion proof.24 V DC power supply

Here is a picture to explain to you what is resettable total flow meter ,no resettable total flow meter, digital display positive displacement flow meter and PD flow meter with pulse or current output.

Advantages and disadvantage of oval gear flow meter

Advantages:

Disadvantages.

High accuracy (reach to 0.2 ~0.5% accuracy) and repeatability It has robustness and durability to make oval gear flow meters suitable for harsh industrial environment where maintenance and downtime need to be minimized. It does not need straight pipeline before and after flow meter It can be mechanical flow meter without power supply.

Oval gear flow meter has bulky and heavy structure, and max flow sensor size is 8 inches. The temperature limitations for the oval gear flow meter is max 200℃ .’ Oval gear flow meters are only suitable for clean, single-phase fluids. If the fluid contains particles or contaminants, an upstream filter is required; otherwise the oval gear flow meter can be broken, If the measuring components get stuck, the fluid flow will be blocked, making the system inapplicable for critical flow interruptions. The flow of the fluid can cause pulsation during measurement. In large-diameter oval gear flow meters, this can lead to noise and even vibration in the pipeline.

How to install and operation

• 1. A strainer should be installed in front of the meter, and be sure that the arrows on the casting of the meter and the strainer pointing the same direction of the liquid flow.
• 2 .If the metered media contains gas, a gas separator should be installed in front of the meter.
• 3. Whether the pipe line is vertically or horizontally installed, the wheel’s shaft of the meter must be fixed horizontal, that is, the dial is vertical to the surface.
• 4. While the meter is installed properly, the counter can be turned 180° or 90° for easy reading.
• 5. Prior to the installation of the new meter, first push the oval wheels from the outlet for several times with a bamboo rod, if the wheels don’t move, they can be immersed in the petrol to prevent from deposits in the meter after the factory’s inspection.
• 6.A throttle valve must be fixed at the inlet of the meter, an on-off valve at the outlet, which must be slowly activated to prevent from a sudden impact, reverse flow, and water hammer.
• 7.It is forbidden to clean the meter with steam.
• 8.For the continuous operated departments, a by-pass should be mounted.
• 9. Prior to the installation of the meter, the pipe line must be thoroughly cleaned, and at the time of cleaning use a straight pipeline instead of the meter, to prevent impurity, welding residue from entering the meter.
• 10.It is forbidden to inspect the meter made of cast iron and cast steel using water.
• 11.During the operated of the meter the flow rate can’t exceed the flow marked on the name plate .It is preferable to operate the meter at 50—80% of the max. flow.
• 12. If the metered media is causticity, stainless steel material shall be selected.
• 13. Following is the installation figure.