PTFE Sealed Butterfly Valve, API 609, A216 WCB, 4 IN, 150 LB

Product Name: Concentric Butterfly Valve, PTFE Seal
Design Standard: API 609
Body Material: ASTM A216 WCB
Size: 4 Inch, DN100
Pressure: Class 150 LB, PN20
End Connection: Wafer
Operation: Lever

Wafer Concentric Butterfly Valves are designed to maintain a seal against bi-directional pressure differentials to prevent backflow in systems designed for unidirectional flow. This is achieved through a tightly fitting seal, gasket, O-ring, precision machining, and a flat valve face on both the upstream and downstream sides of the valve. The valves have threaded inserts on both sides of the valve body, allowing them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.

Technical Specification

» Normal Size Range: 2-24 Inch (DN50-DN600)
» Normal Pressure Rating: Class 150 LB, PN10, PN16
» Material: GG25, GGG40, ASTM A216 WCB, A351 CF8, CF8M, CF3, CF3M
» Optional Seatings: PTFE
» Operation: Handle, Handwheel, Pneumatic, Electric
» Temperature Range: -29°C to 120°C
» Ends Connections: Wafer, Lug, RF Flange
» Design and Manufacture: GB/T 12228, API 609
» Face to Face (End to End): GB/T 12221
» Flanged Connection: ANSI B16.5, GB/T 9113
» Test and Inspection: API 598, GB/T 13927