PR50-38A-0-N-33/ REDUCING VALVE

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The Hydraforce PR50-38A-0-N-33/ (5614902) is a screw-in, cartridge-style hydraulic valve designed for pressure reducing and relieving applications in secondary circuits. This direct-acting spool type valve features an internal spring chamber drain and spool damping chamber, ensuring efficient pressure regulation. In its steady state, it allows bidirectional flow from port 2 to port 1 while maintaining a constant drain at port 3. When the predetermined pressure at port 1 is reached, the valve shifts to block flow at port 2, regulating the pressure at port 1 and relieving excess pressure through port 3. The valve's design includes hardened spool and cage components for enhanced durability and longevity. It offers optional spring ranges up to 227.5 bar (3300 psi), with adjustments that prevent springs from going solid or being backed out of the valve. The PR50-38A-0-N-33/ can handle a maximum operating pressure of 344.7 bar (5000 psi) for ports 1 and 2, while port 3 is rated for up to 68.9 bar (1000 psi). It boasts proof pressures of up to 482.6 bar (7000 psi) for ports 1 and 2, with a burst pressure capability of up to 1034 bar (15000 psi). The valve operates effectively within a fluid temperature range of -40 to 100 \u00b0C with buna N seals, extending further with other seal options like fluorocarbon or polyurethane seals. Its corrosion protection meets PR50-38XX standards withstanding up to a 960-hour salt spray per ASTM b117 standards. Designed for use with mineral-based or synthetic fluids having lubricating properties, it accommodates fluid viscosities ranging from 7.4 to 420 cSt while maintaining a maximum operating contamination level of ISO code 20/18/14 per ISO standard ISO4406.