Pilot Operated Check Valve 

When pilot signal of pressurized oil is used to control movement of poppet in the check valve , it is known as pilot operated check valve.

Construction and Working 
  • It consists of a valve body with inlet and outlet ports and poppet loaded with the help of spring.
  • Plunger and plunger piston is provided with spring at the pilot port.
  • When the oil enters through the pilot port, it pushes the plunger towards the poppet and it will move the poppet to connect inlet port P and port A. The oil will flow freely from port P to port A.
  • When pilot port is out off by oil supply, the poppet block the valveas plunger force is removed and restricts the reverse flow of oil.
ckeck valve


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By Aditya

Hi, I’m Aditya Sharma, a professional blogger from Gurgaon, India and I launched this blog called aadityacademy on July 2021. aadityacademy.com is a mechanical Project-oriented platform run by Aditya sharma and I got the motivation to start aadityacademy blog after seeing less technical education information available on google.

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