***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 RVD50-20A-0-P-42 (5612564P) is a high-performance screw-in, cartridge-style, direct-acting poppet type relief valve designed for effective pressure limiting in hydraulic circuits. As a pressure limiting device, it blocks flow from port 1 to port 2 until the pressure at port 1 reaches a level sufficient to unseat the poppet. This relief valve is engineered for rapid response to load changes with minimal hysteresis, low pressure rise, and minimal internal leakage. The RVD50-20A-0-P-42 features adjustments that cannot be backed out of the valve and maintains adjuster height during pressure setting adjustments. Its robust construction includes a hardened poppet and cage for enhanced durability. The valve supports optional spring ranges up to 345 bar (5000 psi) and has an industry-common cavity design. It boasts 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 at a flow rate of 0.95 lpm (0.25 gpm), with reseat pressures nominally at 85% of crack pressures. Flow capabilities include a rating of up to 113.6 lpm (30 gpm) from port 1 to port 2 at maximum pressure, while maintaining an internal leakage rate as low as 0.25 ml/min (5 drops/min) up to 80% of nominal conditions. The operating temperature range varies based on seal material: -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. It also offers corrosion protection for up to 960 hours in salt spray per ASTM B117 standards. Installation specifications include compatibility with VC10-2 cavities, requiring torque between 63.7 to 71.9 N-m during installation, without orientation restrictions. Seal kits are available for various configurations, ensuring versatile application options in hydraulic systems requiring reliable circuit protection under varying conditions.