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

Key Specifications / Features

The API 609 Concentric Butterfly Valve is made from Ductile Iron GGG40. With a 4-inch (DN100) size and compatible with JIS 5K and 10K pressure ratings, it features resilient seating for tight shutoff and long-lasting performance. The valve is equipped with wafer ends for easy installation and is lever operated, offering simple manual control and efficient flow regulation.

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