***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Hydraforce directly.***
The Hydraforce RVD58-20A-0-V-50 (Material Number: 5612902) is a screw-in, cartridge-style, direct-acting poppet type relief valve designed for hydraulic circuit protection as a pressure limiting device. This compact and economical valve features a dynamic response to pressure surges with low hysteresis, low pressure rise, and minimal internal leakage. It blocks flow from port 1 to port 2 until sufficient pressure at port 1 forces the poppet off its seat. The valve is capable of handling a maximum pressure of 350 bar (5076 psi) at port 1 and 207 bar (3000 psi) at port 2, with proof and burst pressures reaching up to 413 bar (10,000 psi) and 1379 bar (20,000 psi), respectively. The crack pressure is defined as evident at a flow rate of 0.95 lpm (0.25 gpm), with reseat pressure nominally at 90% of the crack pressure. The RVD58-20A-0-V-50 offers a flow rating of up to 37.9 lpm (10 gpm) from port 1 to port 2 at maximum pressure, maintaining a maximum internal leakage of just 0.25 ml/min (5 drops). It operates efficiently across various temperature ranges depending on seal material: -40 to 100\u00b0C (-40 to 212\u00b0F) with Buna N seals; -26 to 204\u00b0C (-15 to 400\u00b0F) with fluorocarbon seals; and -54 to 107\u00b0C (-65 to 225\u00b0F) with polyurethane seals. Additionally, it provides corrosion protection up to a salt spray rating of 230 hours per ASTMB117 standards. This relief valve fits into an VC08-2B cavity requiring an installation torque between 44.7 and 50.2 N-m (33 to 37 ft-lb). The adjuster torque should not exceed the maximum torque when backing out adjuster at approximately 17.6 N-m (13 ft-lb), while the locknut torque is specified as approximately \u00b113.6 N-m (10 \u00b11 ft-lb). Optional seal kits are available in nitrile, fluorocarbon, or polyurethane materials for varied application needs.