The VR Series valves are used to limit the pressure within a system. They are ideal for continuous duty providing accurate pressure control with constant or varying flows. The additional Vent feature can be used with remote pilot section for a two pressure system or to allow manual or remote unloading of the pump.
When the inlet pressure exceeds the setting of the valve, the pilot section opens, causing a small flow across the orifice in the main spool. The subsequent pressure drop moves the spool against a light spring opening a ring of radial holes in the sleeve, allowing relief flow to tank. When the valve is vented, the chamber is referenced directly to tank. This pressure release causes a pressure imbalance opening the main section and dumping the pump to tank at minimum pressure drop.
High accuracy of pilot operated design. Hardened working parts ensure a long, reliable, trouble-free life. Ventable for versatility of operation. Cartridge construction for installation in customer’s manifold.