Pressure Relief Valve Cartridge

Direct operated Pressure Relief Valve Cartridge with a thread m22x1,5 and cavity according to ISO draft 7789. The valve is available in two different setting versions: key setting "s" and turning knob setting "d". Key adjustment "s" is also available with cover, see data sheet 2. 0-50.

Available:

63, 210 and 315 bar. The cartridge body made of steel is galvanized and therefore rust-protected.

Function:

When the set operating pressure is reached, the poppet spool opens and connects the protected line with the return line to the tank. By means of the adjusting mechanism, the poppet spool is pressed onto a seat which is screwed into the lower cartridge opening by a helical spring. The poppet spool is opened and closed hydraulically dampened. This makes the operation of this cartridge very stable. Thanks to the poppet/spool principle and the direct operation, these pressure relief valves are rapid acting and free of leakage oil. The reduced diameter of the seat produces a higher pressure drop and a lower flow throughput performance than pilot operated valves of the same size.