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Product description

FREE-VALVE’s fluorine lined ball check valve is straight type three piece design and manufactured in full port uni-directional body design fully lined with FEP, PFA And PTFE having Flanged valve uses PTFE as the rolling valve ball, the valve can be opened or closed by ball rolling up and down in the slide of the body chamber body under the medium normal flow the valves solid PTFE ball is pushed away from it’s seat and fluid flows through the valve, in a backwards flow condition the ball is pushed firmly back into it’s seat and prevents flow through the valve stopping process,


The valve body adopts full bore, with large flow and small

Good sealing performance, noiseless closing, no water

Horizontal or vertical installation is

Fully Lined Design to eliminate surface contact which provides maximum corrosion resistance

Technical Specification:

Size Range: DN15~DN200

Applicable Temperature: 0~200℃

Connection Type:Flange

Lining Material:PTFE , PFA , FEP

Body material:WCB, CF8 ,CF8M

Pressure test:GB/T13927, API598

Face to Face: GB/T12221, ASME


FREE-VALVE’s fluorine lined ball check valves are mainly used in cold water, chemical and other pipe networks to prevent media flow


Wechat ID:FreeValve


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