HYDAC offers a wide range of direct acting and pilot operated Relief and Reducing Valves. In general, the direct acting valves are faster in response while pilot operated valves have flatter pressure/flow characteristics.HYDAC Relief Valves are available in direct acting poppet and pilot operated spool types with optional pressure adjustment ranges up to 6000 psi 420 bar. Models are available for flow rates up to 80 gpm 300 l/min.A screw-in cartridge, direct acting, poppet type relief valve intended for use as pressure limiting device in hydraulic circuits which require low internal leakage and fast response to pressure changes.Features:Screens to protect pilot orifice from contamination and ensure reliable operationVariety of adjustment mechanism optionsSpring ranges up to 6000 psi 420 barAdjustable under full pressureStroke limiting device for enhanced safetyFast response with excellent stabilityAll external surfaces zinc-platedHardened poppet to ensure Minimal wear and extend service lifeOne piece body maximizes reliability and Minimizes the effects of eccentricityIndustry common cavity