ASTM A351 CF3 gate valve manufacturer in China: ASTM A351 CF3 gate valve, 20 ", 300 lb class, API 600, RF end, bolt cap, full/reduced port.
Size: 20 inches
Pressure grade: 300 LB.
Body/bonnet: A351 CF3.
Wedge: A351 CF3.
Connection end: RF.
Bolt cap (BB) design.
Full port or simplified port design.
Back seal design.
Lifting rod, with external screws and yoke.
Replaceable seat or welded seat.
Special requirements: locking device (interlock).Position indicator.Limit switch.
Extended bonnet available for cryogenic and underground service.