54-2800 Series high pressure, high flow, pressure reducing regulator is designed for hydraulic applications. Inlet and outlet rated up to 5000 psig / 345 bar; Cv = 8.0 for high flows. Air operated and dome loaded versions are available. Hardened Stainless Steel seat and poppet for excellent wear resistance. Ideal for use in hydraulically operated blowout preventers (BOP) and hydraulic component testing.