PR58-38A-0-N-05/04 REDUCE/RELIEVE

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The Hydraforce PR58-38A-0-N-05/04 (5606450.04) is a screw-in, cartridge-style, direct-acting spool-type hydraulic pressure reducing and relieving valve. It features an internal spring chamber drain and a spool damping chamber, making it an efficient pressure regulating device for secondary circuits. In its standard operation, the PR58-38A allows bidirectional flow from port 2 to port 1 while maintaining a constant drain at port 3. Once a predetermined pressure is reached at port 1, the cartridge shifts to block flow at port 2, thereby regulating the pressure at port 1 and allowing relief from port 1 to port 3. The valve can be equipped with an optional 233-micron screen for added protection of port 2. Key features include adjustments that cannot be backed out of the valve, preventing springs from going solid, optional spring ranges up to 248 bar (4200 psi), and hardened spool and cage for long life in a compact industry-common size. The PR58-38A operates effectively within a wide range of temperatures depending on the seal type used: -40 to 100 \u00b0C with Buna N seals, -26 to 204 \u00b0C with fluorocarbon seals, and -54 to 107 \u00b0C with polyurethane and urethane seals. It is compatible with mineral-based or synthetic fluids that have lubricating properties and supports fluid viscosity ranges between 7.4 to 420 cSt. With a maximum operating contamination level of ISO code 20/18/14, this valve ensures reliable performance in demanding environments. Installation specifications include compatibility with VC08-3 cavities using torque settings from 32.5 to maximum limits of up to 47.5 N-m for cartridge installation. The unit weight varies slightly depending on specific configurations but generally remains under one kilogram for ease of application across various systems requiring precise hydraulic control solutions.