Parker's pilot operated pressure relief valves series R and RS*E in slip-in cartridge design are particularly suitable for the protection of the pump and feature an excellent pressure behaviour for improved process accuracy. They are offered as complete units in numerous variations.

Series R consist of a manual adjustment pilot stage and a cartridge main stage. The pressure relief valve series RS consists of a manual adjusted pilot stage with a directional valve for an electrically controlled vent function and a cartridge main part.

The R/RS*E model codes embrace the pilot valves, covers and cartridges that are also offered as separate items.

Markets:
• Industrial

Features/Benefits:
• Cavity and mounting pattern according to ISO 7368 - for quick, easy integration
• Wide range of options – suitable for almost every application
• Excellent pressure behaviour - prevents higher pressure variation
• High nominal flow rates up to 4000 l/min - optimum efficiency in relation to valve size
• 6 pressure stages - enables fine adjustment
• 6 sizes, NG16 to NG63 - makes selection easy
• Short delivery time - no warehousing necessary
• 2 switching types (series RS*E)
• 2 adjustment modes:
    - hand knob
    - Acorn nut with lead seal
• Remote control via port X

Applications:
• Suitable for general hydraulic applications
• General presses
• Injection molding

Note:
Port X is only usable for remote vent function.