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Machine Design

Single-Cartridge Relief Valves

CR Series bidirectional relief valves are housed in a compact single cartridge and limit pressure in demanding hydraulic-control applications. The design is said to be more compact than conventional relief-valve circuits, which usually require two valves and special housing. The valves from Hydraforce Inc., Lincolnshire, Ill., come in 10-size, two-way and 08-size, three-way versions. They feature flow rates to 16 gpm, pressures to 3,500 psi, and adjustable pressures from 200 to 3,000 psi.



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