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What is a piston pump

What is a piston pump?

Piston pump, also known as electric reciprocating pump, is divided into single cylinder and multi cylinder from the structure, which is characterized by high head. It is suitable for transporting oil emulsion without solid particles at room temperature. It is used for water injection, oil injection and oil production in oil fields and coal seams; Bore press, power pump of hydraulic press, hydraulic sand cleaning, ammonia liquid transportation in chemical fertilizer plant, etc. If the overflow part is stainless steel, corrosive liquid can be transported. In addition, according to different structural materials, it can also transport high-temperature tar, slime, high concentration mortar, high viscosity liquid, etc.

Principle and structure of piston pump

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The piston pump moves back and forth by the piston, so that the working volume of the pump chamber changes periodically to realize the suction and discharge of liquid. It is composed of pump cylinder, piston, water inlet and outlet valve, water inlet and outlet pipe, connecting rod and transmission device. The piston is driven by power to make reciprocating motion in the pump cylinder. When the piston moves upward, the water inlet valve opens and the water enters the pump cylinder. At the same time, the water valve on the piston closes and the water on the upper part of the piston rises up with the piston; When the piston moves downward, the water inlet valve is closed and the valve on the piston is opened. At the same time, the water pressure in the lower chamber of the pump cylinder enters the upper chamber and rises into the outlet pipe. In this way, the water enters and rises repeatedly to continuously discharge the water from the outlet pipe. Piston pump is divided into single and double acting type; Single, double and multi cylinder type; Horizontal, vertical and inclined; Motorized, manual, pedal, animal powered. The flow of piston pump q = 0.71 ~ 6000 m3/h, discharge pressure P2 ≤ 39.2 MPa, P2 ≤ 24.5 MPa in most cases.

The flow of piston pump is determined by the diameter of pump cylinder, piston stroke and reciprocating times of piston per minute; The head depends on the pipeline characteristics of the device. The flow of the same piston pump remains unchanged, and the head can change with the pipeline characteristics of the device. That is, the head increases, but the flow remains unchanged. Only in the high-pressure area, the flow decreases slightly.

Performance characteristics of piston pump

Piston pump is suitable for high pressure and small flow occasions, especially when the flow is less than 100m3/h and the discharge pressure is greater than 9.8 MPa, it shows its high efficiency and good operation performance.

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It has good suction performance and can pump liquids with different media and viscosities. It can be used for water injection, oil injection and oil production in oil fields and coal seams. If the overflow part is stainless steel, corrosive liquid can be transported. In addition, according to different structural materials, it can also transport high-temperature tar, slime, high concentration mortar, high viscosity liquid, etc.

Application of piston pump

Piston pump is suitable for high pressure and small flow occasions, especially when the flow is less than 100 m3/h and the discharge pressure is greater than 9.8 MPa, it shows its high efficiency and good operation performance. It has good suction performance and can suck liquids with different media and different viscosities. Therefore, it is widely used in petrochemical industry, machinery manufacturing industry, papermaking, food processing, pharmaceutical production and so on. The low and medium speed piston pump has low speed and can be operated manually and dragged by livestock. It is suitable for rural water supply and small-scale irrigation.

Source: Network Arrangement – China Pipe Fitting Manufacturer – Yaang Pipe Industry (www.epowermetals.com)

(Yaang Pipe Industry is a leading manufacturer and supplier of nickel alloy and stainless steel products, including Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.)

If you want to have more information about the article or you want to share your opinion with us, contact us at sales@epowermetals.com

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