PR50-38F-0-N-21/05 REDUCING

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The Hydraforce PR50-38F-0-N-21/05 (5614951.05) is a high-performance screw-in, cartridge-style hydraulic pressure reducing/relieving valve. This direct-acting spool type valve is equipped with an internal spring chamber drain and a spool damping chamber, making it ideal for regulating pressure in secondary circuits. The PR50-38F-0-N-21/05 allows bidirectional flow from port 2 to port 1 while maintaining a constant drain at port 3. When the pressure at port 1 reaches a predetermined level, the cartridge shifts to block flow at port 2, effectively regulating the pressure at port 1 and relieving excess pressure to port 3. This model features adjustments that prevent springs from becoming solid and offers optional spring ranges up to 227.5 bar (3300 psi). It is constructed with hardened spool and cage components for enhanced durability. The valve can withstand a maximum pressure of 344.7 bar (5000 psi) on ports 1 and 2, and up to 68.9 bar (1000 psi) on port 3, with proof pressures reaching up to 482.6 bar (7000 psi). It also boasts a burst pressure capacity of up to 1034 bar (15000 psi). The operating fluid temperature ranges vary depending on the seal material used: -40 to 100 \u00b0C with Buna N seals, -26 to 204 \u00b0C with fluorocarbon seals, and -54 to 107 \u00b0C with polyurethane or urethane seals. The PR50-38F-0-N-21/05 is designed for use in systems utilizing mineral-based or synthetic fluids with lubricating properties, accommodating fluid viscosities ranging from 7.4 to 420 cSt. It meets corrosion protection standards of up to a 960-hour salt spray per ASTM B117 and has an installation torque requirement ranging from 33.9 to a maximum of 67.8 N-m (25 to maximum of 50 ft-lb). This versatile valve fits into VC10-3 cavities and supports various housing options for flexible application across different hydraulic systems.