5612638.34.0

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The Hydraforce RVD50-20C-0-N-42/34.0 (Material Number: 5612638.34.0) is a screw-in, cartridge-style, direct-acting poppet-type relief valve designed for pressure limiting in hydraulic circuits. It effectively blocks flow from port 1 to port 2 until the pressure at port 1 reaches a level sufficient to unseat the poppet, providing rapid response with low hysteresis and minimal internal leakage. The valve features a hardened poppet and cage for durability and offers optional spring ranges up to 345 bar (5000 psi). It can withstand a maximum pressure rating of 413.7 bar (6000 psi), proof pressure of 785.4 bar (11000 psi), and burst pressure of 1515.8 bar (22000 psi). The crack pressure is defined as evident at a flow of 0.95 lpm (0.25 gpm), with reseat pressure nominally at 85% of the crack pressure, allowing for precise control in demanding applications. The valve accommodates various fluid temperatures depending on seal material: -40 to 100\u00b0C with Buna N seals, -26 to 204\u00b0C with fluorocarbon seals, and -54 to 107\u00b0C with both polyurethane and urethane seals. Its flow rating is up to 113.6 lpm (30 gpm) from port 1 to port 2 at maximum pressure, maintaining an internal leakage rate of no more than 0.25 ml/min under standard conditions. Installation requires a VC10-2 cavity with torque specifications between 63.7 to 71.9 N-m (47 to 53 ft-lb). The unit's corrosion resistance is tested up to 960 hours in salt spray per ASTM B117 standards, ensuring reliability in harsh environments. Compatible with mineral-based or synthetic fluids with lubricating properties, it supports fluid viscosity ranges from 7.4 to 420 cSt and adheres to ISO cleanliness standards of up to an operating contamination level of ISO code18/16/13.