PR50-38H-0-N-33/21 REDUCING VALVE

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The Hydraforce 5614917.21 (5614917.21) is a screw-in, cartridge-style, direct-acting spool type hydraulic pressure reducing/relieving valve. It features an internal spring chamber drain and a spool damping chamber, making it an efficient pressure regulating device for secondary circuits. This valve allows bidirectional flow from port 2 to port 1 in its steady state, with the spring chamber constantly drained at port 3. When the predetermined pressure is reached at port 1, the cartridge shifts to block flow at port 2, thus regulating the pressure at port 1 while also allowing it to relieve from port 1 to port 3 at a variable value over the set reducing pressure. The design includes optional protection for port 2 with a 60 mesh, 250-micron rated screen and offers various spring ranges up to 227.5 bar (3300 psi). The valve's construction features a hardened spool and cage for enhanced durability and long life, fitting industry-common sizes. Adjustments are designed such that they cannot be backed out of the valve, ensuring reliability and preventing springs from going solid during operation.