Technique standard
Design GB/T 12235
Face to Face GB/T 12221 HG/T 3704-2003 ASME B16.10
Flange dimension HG20592-97 ANSI B16.5a
Mode of driving Hand?electrically-driven?air-operated
Nominal Pressure 0.6-2.5MPa/Class 150
Pressure test GB/T 13927?API 1598
Main parts material specifications
Name Refined D.I Cast steel Stainless steel
QT C P R RL RL
Body/Bonnet QT400 WCB CF8 CF8M CF3 CF3M
Stem 2Cr13 2Cr13 CF8 CF8M CF3 CF3M
Inner lining FEP(F46)/PTFE(F4)/PFA/PO/PE
Daiphragm FEP(F46)/CR/PFA/FPDM
Disc QT400 WCB CF8 CF8M CF3 CF3M
Bolt 35 35 SS316 SS316 SS302 SS302
Nut 45 45 SS304 SS304 SS304 SS304
Fluorine Lined Diaphragm Valve,PN16