Petrochemical Gear Metering Pump

Petrochemical gear metering pumps utilize the rotational motion of one or more pairs of precisely meshing gears within the pump chamber to achieve the suction, transfer, and precise metering of fluids. When the driving gear is rotated by the drive mechanism, the driven gear rotates synchronously in the opposite direction through its engagement with the driving gear. On the suction side, the gear teeth gradually separate, and the sealed volume units gradually expand, creating a negative pressure zone, causing the fluid to be drawn in by the pressure difference. As the gears rotate, the fluid is carried to the discharge side, where the gear teeth gradually mesh, the sealed volume units shrink, and the fluid is squeezed out. Because the number of sealed volume units formed by the gear teeth and the volume of each unit are fixed for each rotation of the gear, the volume of fluid delivered by the pump is also fixed. Therefore, the flow rate can be precisely controlled by controlling the gear speed.

Feather of Petrochemical Gear Metering Pump

1. Superior Materials: The pump body and key components are typically made of stainless steel or alloy stainless steel, such as 304 and 316L, offering excellent corrosion resistance and the ability to withstand the corrosive effects of petrochemical media. The gears are specially treated for high strength, hardness, and wear resistance.
2. Reliable Sealing: High-performance mechanical seals or packing seals are used to prevent media leakage, ensuring the safety of the pump when handling flammable, explosive, toxic, and other hazardous media.
3. High Gear Precision: High-standard external spur or helical gears are used and precisely fitted with the pump chamber to ensure the accuracy of the fluid volume discharged per revolution.

Performance Parameters
1. Flow Rate Range: The flow rate range of different models of petrochemical gear metering pumps varies considerably, with flow rates ranging from 0.55 cc/rev to 500 cc/rev.
2. Pressure Range: The typical operating pressure ranges from several megapascals to tens of megapascals.
3. Viscosity Adaptability: Can handle fluids with a wide range of viscosities, typically adapting to a viscosity range of 1 centipoise to 500,000 centipoise.
4. Temperature Range: The operating temperature range varies depending on the material and sealing method. Some pumps can operate in a temperature range of -18℃ to 280℃ and can be equipped with a jacket/electric heating.

Typical Application

Petrochemical gear metering pumps are widely used in various fields of the petrochemical industry:
1. In polymer production, they are used for precise metering of monomers, additives, etc.;
2. In chemical fiber spinning processes, they are used for metering and conveying spinning solutions;
3. In coatings and paint production, they are used for precise addition of various additives and pigments;
4. They can be used in processes such as catalyst injection and lubricating oil blending in petroleum refining.

Performance Parameter Table

FAQ

Q: Are you trading company or manufacturer?

A: we are manufacturer, we have own factory in China

Q: How long is your delivery time?

A: generally it is 5-10days if the goods are in stock, or it is 15-20days if the goods are not in stock.

It is according to quantity.

Q: How to choose the most suitable model.

A: You can choose in the parameters or you can tell me the working condition: such as pumping liquid, flow rate, pressure, temperature and viscosity.

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