Cast Iron Ball Valve DIN Ball Valve ANSI Ball Valve Main parts and materials: Parts name material Bodyã??Bonnet Grey iron GG25 Ball SS304 Shaft ASTM A276 SS416 Seat PTFE Standards Design and Manufacture Face to face Flange end Inspection BS5159 DN25-DN100;DIN3202 F4 DN125-DN250;DIN3202 F5 DIN2501/DIN2533 API598 Test Nominal pressure Shell test Seal test 1.0/1.6 1.5/2.4 1.1/1.8