Pilot-operated check valves with pressure release ERVPM
Unlockable check valves with pre-relief from the ERVPM series are seat-tight valves for actively blocking a volume flow in one flow direction and for low-loss flow of large volume flows of 63 l/min in the other direction.
- Max. operating pressure: 500 bar
- Max. flow rate: 63 l/min
- Size: NG 10, cartridge design
Features
Seat tight, unlocking takes place in two stages by means of an unlocking pressure in port X; at low unlocking pressure (from 1/10 of the load pressure) only an inner valve element with a limited cross-section is opened, the full opening cross-section is released from 1/4 of the load pressure
Benefits
Seat-tight function, compact design, good suitability for mineral oil, integration on cylinders and engines is possible; offers increased system rigidity in addition to load holding in the event of line breakage
Industries & Applications
The valve is designed to actively block a large volume flow in one flow direction and for low-loss flow in the other direction.
Mounting
Seat design, as screw-in valve, the connection control pressure can be piped directly from the outside if the screw plug is omitted, with guided closing element
