ANSI 125/250 cast iron wafer axial type check valve Body Material:Cast Iron or Ductile Iron ; Application for water,oil,gas,steam or chemical piping systems.These valves are in use in numerous oil refineries,public utilities, water works,industrial processing plants, high temperature water heating systems,and aboard U.S. Navy vessels,among many other applications.FEATURES: 1.WATER HAMMER ELIMINATED 2.Shortest feasible face-to-face dimensions 3.Lightweight,space-saving wafer design 4.Easily replaceable parts 5.Functions equally well in all positions 6.Simple flange-supported installation 7.Drop-tight seating DESCRIPTION: 1. Working pressure: 1.0/1.6MPa 2. Working temperature: NBR: 0°C~+80°C ;EPDM: -10°C~+120°C 3. Flange according: ANSI 125/250 4. Face to face : ANSI 125/250 5.Testing: API598 6. Medium: Fresh water, Sea water, all kinds of oil, acid, alkaline liquid etc..