RV12-26H-12T-N-04/ RELIEF VALVE

***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 RV12-26H-12T-N-04/ (5623450) is a high-performance, screw-in, cartridge-style pilot-operated relief valve designed for demanding hydraulic circuits requiring rapid response and minimal hysteresis. This two-stage spool-type valve efficiently limits pressure by blocking flow from port 1 to port 2 until the pressure at port 1 reaches a level sufficient to unseat the pilot relief, allowing the main stage to open the flow path. Notably, this valve is unsuitable for cross-over relief applications. Key features include adjustments that prevent springs from solidifying and cannot be backed out of the valve, ensuring long-term reliability. The valve offers optional spring ranges up to 240 bar (3500 psi) and demonstrates a rapid, smooth response to pressure surges. The RV12-26H-12T-N-04/ has a maximum pressure rating of 241.3 bar (3500 psi) at port 1 and 103.4 bar (1500 psi) at port 2, with proof and burst pressures of 689.5 bar (10000 psi) and 1379.0 bar (20000 psi), respectively. It supports a flow rating of up to 170.3 lpm (45 gpm) at maximum pressure while maintaining internal leakage below 197 ml/min at port 2 when set at nominal conditions. Operating fluid temperatures vary 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 seals. The valve's design includes corrosion protection tested for up to 960 hours in salt spray per ASTM B117 standards. Suitable for fluids ranging from mineral-based oils to synthetic lubricants within a viscosity range of 7.4 to 420 cSt, this robust component maintains optimal performance even in contaminated environments up to ISO cleanliness code level of 18/16/13. The unit weighs between 0.35 kg and 0.40 kg depending on configuration and fits VC12-2 cavities with installation torques specified between different plug styles.