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Pneumatic Piston Pump - China

price: 1.00 Dollar US$

A pneumatic piston pump, also known as an air-operated diaphragm pump, is a type of positive displacement pump that utilizes compressed air or gas to transfer fluids.

It is widely used in various industries for pumping liquids with varying viscosities, including chemicals, paints, adhesives, sludges, and more.

The pump operates based on the reciprocating action of a piston driven by pneumatic pressure, allowing for efficient and reliable fluid transfer.

The working principle of a pneumatic piston pump can be broken down into several key steps: Pneumatic pressure supply: The pump is connected to a source of compressed air or gas, typically at a regulated pressure.

This air supply acts as the driving force for the pump's operation.

Air distribution system: The pump is equipped with an air distribution system, consisting of control valves, air chambers, and diaphragms.

These components regulate the flow of compressed air into specific areas of the pump to initiate and control the reciprocating motion of the piston.

Intake stroke: When the compressed air is directed to the appropriate chamber, it pushes against the diaphragm connected to the piston.

This creates a partial vacuum in the pump's inlet chamber, causing the fluid to be drawn into the pump through an inlet valve.

The fluid flows into the pump's chamber as the piston moves away from the inlet, enlarging the space within the chamber.

Compression stroke: As the piston reaches the end of its intake stroke, the air distribution system redirects the compressed air to the opposite side of the pump.

This pushes against the diaphragm connected to the piston, causing the piston to move in the opposite direction.

This motion reduces the volume of the pump's chamber, compressing the fluid inside.

Discharge stroke: The compression stroke increases the pressure within the chamber, forcing the fluid out through a discharge valve.

The fluid is pushed into the pump's outlet, where it can be transferred to the desired location or process.

Simultaneously, the movement of the piston creates a partial vacuum in the inlet chamber, preparing for the next intake stroke.

Continuous operation: The reciprocating motion of the piston, driven by the alternating supply of compressed air, allows the pump to continuously draw in and discharge fluid.

This cyclic operation ensures a steady flow rate and efficient transfer of the fluid.


Company Contact:


  • Phone: 13817765294

  • Address: No. 4, Lane 55, Shanfu East Road, Shanyang Town, Jinshan Disrtict, Shanghai , Shanghai , China

  • Email: Email


Published date: February 26, 2024

  • Business Description: It is an enterprise specializing in air operated diaphragm pumps, electric diaphragm pumps and piston pumps.

    GK not only absorbs advanced technology from abroad but also possess the ability to innovate and develop new products.

    We have the most com-plete specifications and varieties of air operated diaphragm pump.

    We have department for independent design and innovation, we have skillful worker teams with strong ability for precision machining.

    Pump size includes 1/4", 3/8", 1/2", 3/4", 1", 1.5", 2", 3" , pump casing materials include Stainless Steel, Aluminum, Ductile Iron, Cast Steel, Plastic, PVDF.

    Our diaphragm pumps have a variety of import and export connection methods for simple structure and convenient use, this can be solve the problem of medium transportation easily! In addition, we have Smart Pump and New Energy Special Diaphragm Pump.

    GK's partners are all over Asia, Middle East, New Zealand, Australia, and etc.

    Our vision is to allow our customers to use our products with peace of mind and provide customized services OEM to domestic and foreign com-panies.

    We promise to build a better future together with our customers!

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