item name material
1 body CI/DI
2 middle
bushing
512;F4
3 seat EPDM/NBR/VITON
4 disc DI/CF8/CF8M/Aluminum Bronze
5 stem SS416/SS304/SS316
6 pin SS316/SS416
7 short
bushing
512;F4
8 "〇"ring NBR
Adoptive standard
1.Valve Design:MSS SP-67 for Casting steel,API609+ANSI
B16.1 for DI/CI
2.Flange:ANSI B16.1 Class 125,DIN2501 PN10/16;BS4504
PN10/16
3.Face to face:BS EN 558-1;the length in BS EN558-1 is the
same in DIN3202/API609/MSS SP-67:2002
4.Pressure test conform to API598