H44T/W/X-10/16 Cast Steel Check Valve 1) Sizes: DN40-DN600 2) Pressure: 1.0MPa, 1.6MPa 3) Valve Body: Grey Iron or Ductile Iron 4) Disc: Grey Iron or Ductile Iron 5) Bonnet: Grey Iron or Ductile Iron 6) Rod pin: Grey Iron or Ductile Iron 7) Axle pin: Carbon Steel or Stainless Steel 8) Seal: Brass 9) Standards: GB 10) Type: Cast steel swing check valve 11) Connection type: Flange end