Marine Spiral Butterfly Valve, API 609, GGG40, 4 IN, 5K, 10K

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

The Wafer Concentric Butterfly Valve is designed to prevent backflow in systems with unidirectional flow by maintaining a seal against bi-directional pressure differentials. It achieves this with a precision-machined, tightly fitting seal, gasket, and O-ring, along with flat valve faces on both the upstream and downstream sides. The valve features threaded inserts on both sides of the body, allowing for installation using two sets of bolts and no nuts. It is mounted between two flanges, with a separate set of bolts for each flange. This configuration enables easy disconnection of either side of the piping system without disturbing the other side.

Technical Specifications

» Size Range: 2-48 Inch (DN50-DN1200)
» Pressure Ratings: Class 150 LB, PN10, PN16
» Materials: GG25, GGG40, ASTM A216 WCB, A351 CF8, CF8M, CF3, CF3M
» Optional Seat Materials: Resilient NBR, EPDM, VITON
» Operation: Handle, Handwheel, Pneumatic, Electric
» End Connections: Wafer, Lug, RF Flange
» Design and Manufacture Standards: GB/T 12228, API 609
» Face-to-Face (End-to-End) Standard: GB/T 12221
» Flanged Connection Standards: ANSI B16.5, GB/T 9113
» Test and Inspection Standards: API 598, GB/T 13927
» Temperature Range: -29°C to 120°C
» Medium: Water, Gas, Oil, etc.