DIN Resilient Seat Non Rising Stem Gate Valve Cast Iron Gate Valve Main parts and� materials Parts Name Materials Body Bonnet Ductile iron Disc Ductile  iron with EPDM/NBR Stem Stainless Steel Standards Design and Manufacture Face to Face Flange End Inspection DIN3352 DIN3202/ISO5752 DIN2501/GB-17241 DIN3230/JB-T9092 Test Nominal Pressure (MPa) Shell Test (MPa) Seal Test (MPa) 1.0 1.5 1.1 1.6 2.4 1.76
