Pilot operated check valve inexpensive and easy solution for the potential issue which media backflow can cause. Backflow of media can cause contamination of upstream media, it can cause damage to equipment, it could increase a maintenance costs and system inefficiency.
Flow of media in Hydraulic check valve remain steady as long as the pressure is sufficient to keep the disc open, once the pressure drops, the disc automatically returns to its seat, which shut off the flow. The pressure required to open the high pressure check valve is known as cracking pressure which typically ranges between 3 psi to 350 psi depending on the size of valve. These valves create a tight seals to prevent any leaks.
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