***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-N-15/ (5612561) is a screw-in, cartridge-style, direct-acting poppet type relief valve designed for hydraulic circuit protection as a pressure-limiting device. It efficiently blocks flow from port 1 to port 2 until the pressure at port 1 is sufficient to unseat the poppet. This valve provides rapid response to load changes with low hysteresis, minimal pressure rise, and reduced internal leakage. Notably, adjustments cannot be backed out of the valve, and the adjuster's height remains constant when altering the pressure setting. The hardened poppet and cage ensure durability, with optional spring ranges up to 345 bar (5000 psi). It fits an industry-common cavity and has a 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 valve's crack pressure is defined at a flow rate of 0.95 lpm (0.25 gpm), with reseat pressure at approximately 85% of crack pressure. In terms of flow capabilities, it supports a maximum flow rating of 113.6 lpm (30 gpm) from port 1 to port 2 at maximum pressure, with internal leakage capped at 0.25 ml/min (5 drops/min) up to 80% nominal capacity. The operating fluid temperature range varies based on seal type: -40 to 100 \u00b0C with Buna N seals; -26 to 204 \u00b0C with fluorocarbon seals; -54 to 107 \u00b0C with polyurethane or urethane seals. The storage and ambient temperature ranges are both -40 to 70 \u00b0C (-40 to 160 \u00b0F). The valve offers corrosion protection for up to 960 hours in salt spray per ASTM B117 standards and accommodates fluids ranging from mineral-based or synthetic oils with lubricating properties within a viscosity range of 7.4 to 420 cSt, maintaining an ISO cleanliness level of up to ISO4406:18/16/13 for optimal operation.