Home / Hydraulic / Hyd_Valves / Hyd_Valves_PressureControl / Hyd_Valves_PressureControl_Relief / Sun RDFALAN Direct-acting Relief Valve Sun RDFALAN Direct-acting Relief Valve Direct-acting relief cartridges are normally closed, pressure-limiting valves used to protect hydraulic componentsfrom pressure transients. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to opento tank (port 2), throttling flow to limit the pressure rise. These valves are smooth and quiet, essentially zero leak,dirt tolerant, immune to silting and are very fast. SKU: Sun_RDFALAN_Direct-acting_Relief_Valve Category: Hyd_Valves_PressureControl_Relief Description Description Factory Pressure Settings Established at 4 gpmMaximum Operating Pressure 5000 psiMaximum Valve Leakage at Reseat 10 drops/min.Response Time – Typical 2 msReseat >90% of settingAdjustment – No. of CW Turns from Min. to Max. setting 6Locknut Hex Size 9/16 in.Locknut Torque 80 – 90 lbf in.Seal kit – Cartridge Buna: 990303007Seal kit – Cartridge EPDM: 990303014Seal kit – Cartridge Polyurethane: 990303002Seal kit – Cartridge Viton: 990303006
