Marine Cast Steel Gate Valve is used to control the medium to open and close in the fuel oil, lubrication oil, steam, water pipe system with the temperature not over 300 degree centigrade. Design Standard: JIS F7366-1996 Test Standard: JIS 7400-1996 Hydraulic Test Pressure: Body- 2.1Mpa, Seat-1.54Mpa Flange size as per JIS B2220 - 10K Main Material: Body: Cast Steel(SC450) Bonnet:Cast Steel(SC450) Seat: Bronze (BC6) or Stainless steel (2Cr13) Disc:Bronze (BC6) or Stainless steel (2Cr13) Stem: Brass (C3771BD) or SUS403 Gasket: non-asbestos Packing Gland: Bronze (BC6) or Stainless steel (2Cr13) Handwheel: FC200 (Cast Iron)