hot sale 30LPM pilot check valve


P.o. check valves series cpom, zre • parker cpom, zre sandwich style, pilot operated check valves can be provided in either single or double configurations. • the pilot operated checks may be positioned in 'a' port or 'b' port; or both 'a' and 'b' ports. • valve
If you have a pilot operated check valve with a 3:1 ratio pilot piston, then you would need a pilot pressure at port 1 that is 1/3 of the pressure being checked at port 3 plus the spring. for example, if you had 3000 psi on port 3 and a 5 psi spring and a 3:1 pilot ratio, it would take 1002 psi [(3000 psi + 5 psi) / 3)] to release the check valve.
The shaft (5) is moving with the diaphragm, actuating the main valve (6) by opening or closing pilot valve’s internal water passages. pilot valve set-point. the pilot valve’s position is determined by the forces equilibrium of hydraulic pressure and spring resistance. spring resistance is adjusted by the adjustment bolt (2).
Valves are found in all plumbing and heating systems but commonly go unnoticed until disaster strikes. valves are used as emergency shutoff devices for water, gas, or oil systems and must function properly to ensure a safe and efficient plumbing or heating system. they regulate flow in hydronic systems and can be used for drainage purposes.


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