Body: Stainless steel
Disc: Stainless steel
Shaft: Stainless steel
Seat: PTFE/NBR/EPDM/VITON
Operator: Lever, gear box, Actuator, Pneumatic
Design standard: API609, BS5155,MSS-67-1995
Face to face: API 598
Tubing flange: BS,DIN, ANSI, JIS, ASE, ASD, S10D, BS10E
Inspection and test: API598, ISO5208-1982