API 609 Concentric Butterfly Valve, GGG40, 4 IN, JIS 5K,10K

Product Name: Concentric Butterfly Valve, Resilient Seat
Design Standard: API 609
Body Material: Ductile Iron GGG40
Size: 4 Inch, DN100
Pressure: JIS 5K, 10K
End Connection: Wafer End
Operation: Lever

The Wafer Concentric Butterfly Valve is designed to maintain a seal against bi-directional pressure differentials, preventing backflow in systems intended for unidirectional flow. It achieves this with a tightly fitting seal, gasket, O-ring, precision-machined components, and flat valve faces on both the upstream and downstream sides of the valve. The valve features threaded inserts on both sides of the valve body, allowing it to be installed into a system using two sets of bolts, without the need for nuts. The valve is installed between two flanges, with a separate set of bolts for each flange. This design allows either side of the piping system to be disconnected without affecting the other side.

Technical Specification

» Normal Size Range: 2-48 Inch (DN50-DN1200)

» Normal Pressure Rating: Class 150 LB, PN10, PN16

» Material: GG25, GGG40, ASTM A216 WCB, ASTM A351 CF8, CF8M, CF3, CF3M

» Optional Seatings: Resilient NBR, EPDM, VITON

» Operation: Handle, Handwheel, Pneumatic, Electric

» Temperature Range: -29°C to 120°C

» End Connections: Wafer, Lug, RF Flange

» Design and Manufacture Standards: GB/T 12228, API 609

» Face to Face (End to End): GB/T 12221

» Flanged Connections: ANSI B16.5, GB/T 9113

» Test and Inspection Standards: API 598, GB/T 13927