Unloader Valve High Pressure Max Flow GPM 26.4 Flow Range (GPM) 2.5 to 26.4 Pressure Range (PSI) 800 to 4800 Max Fluid Temp (F) 194 Degrees Body Material Brass Wetted Materials Brass/Stainless Steel Inlet Port (In.) 1/2 (F)NPT Outlet Port (In.) 1/2 (F)NP