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

Key Specifications / Features

This Marine Spiral Butterfly Valve, manufactured as per API 609 standards, features a ductile iron GGG40 body for strength and corrosion resistance. With a 4-inch (DN100) size, it is designed to handle pressures of JIS 5K and 10K, making it ideal for marine applications. The valve comes with wafer-type ends for easy installation between flanges, offering reliable sealing and smooth flow control in challenging environments.

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.