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Pneumatic Piston Pump Pneumatic Piston Pump

Piston Pump (2:1)

ModelGK2:1 Pneumatic Piston Pump
Max.Working Pressure 290psi (2.0Mpa, 20bar)
Max.Flow Rate 36gpm (75 Ipm)
Max.Suction Lift 6m
Max.Particle Allowed 3.0mm
Fluid Outlet Size 1 in.
Fluid Inlet Size 1-1/2 in.
Max. Air Consumption 34scfm (17L/s)
Air Inlet Size 1/2 in.
Connection Type Female Thread
Body Material 304/316(SS304/SS316)
Ratio 2:1

Product Description

The GK2:1 Pneumatic Piston Pump  – the ultimate solution for your fluid transfer needs

The GK2:1 Pneumatic Piston Pump is the epitome of reliability, efficiency, and durability. With its exceptional performance parameters, sturdy construction, and GK's commitment to innovation, this pump is the perfect choice for all your fluid transfer needs. 

Exceptional Performance and Reliability

The GK2:1 Pneumatic Piston Pump is designed to deliver exceptional performance and reliability. With a maximum working pressure of 290psi (2.0Mpa, 20bar) and a maximum flow rate of 36gpm (75 Ipm), this pump is built to handle even the most demanding applications with ease. Whether you need to transfer fluids in industrial processes, chemical handling, or wastewater treatment, our piston pump is the ideal choice.

Excellent Suction Lift Capacity

One of the standout features of the GK2:1 Pneumatic Piston Pump is its impressive suction lift capability. With a maximum suction lift of 6m, it can efficiently draw fluids from lower levels, making it suitable for various pumping scenarios. Additionally, the pump allows particles up to 3.0mm in size, ensuring smooth and uninterrupted operation even in challenging environments.

Strong and Leak-free

We understand the importance of flexibility in fluid transfer operations, which is why our piston pump is designed with convenience in mind. The fluid outlet size is 1/4 in., while the fluid inlet size is 1-1/2 in., allowing for easy integration into existing systems. The connection type is female thread, ensuring a secure and leak-free connection.


When it comes to efficiency, the GK2:1 Pneumatic Piston Pump stands out from the crowd. With a maximum air consumption of 34scfm (17L/s) and an air inlet size of 1/2 in., it optimizes energy usage while delivering consistent and reliable performance. The pump's ratio of 2:1 further enhances its efficiency, ensuring effective fluid transfer with minimal air consumption.


Durability is a hallmark of GK pumps, and the GK2:1 Pneumatic Piston Pump is no exception. The body material is constructed using high-quality 304/316 stainless steel (SS304/SS316), providing excellent resistance to corrosion and ensuring a long service life. Our pumps are built to withstand the toughest operating conditions, giving you peace of mind and minimizing downtime.

Installation Dimensions and Performance Curves

Piston Pump (2:1)                                                                         Piston Pump (2:1)


Our pneumatic piston pumps can be used in a wide range of applications.

Nuclear Power Industry

Pipeline system, nuclear station lubrication system and common island(CI) wastewater treatment

Automobile Industry

Polishing emulsions, oils, coolants, automotive priming, oil emulsion paints, varnishes, varnish additives, degreasers / degreasing fluid, paints, etc.

Pharmaceutical Industry

Solvents, acids, alkalis, plant extracts, ointments / cream, plasma and other pharmaceutical liquids

Ceramic Industry

Mud, Slurry pottery, Lime milk, Clay Slurry

Contact Us

To learn more about the GK2:1 Pneumatic Piston Pump and how it can revolutionize your fluid transfer processes, please don't hesitate to contact us. Our knowledgeable team at GIN KAI TECHNOLOGY (SHANGHAI) CO., LTD (GK) is ready to assist you.