ASTM A351 CF8 Butterfly Valve, API 609, 2 Inch, CL150, Wafer

Key Specifications / Features

The China ASTM A351 CF8 Butterfly Valve is a concentric type valve designed to meet API 609 standards. Featuring a durable stainless steel body and a PTFE seal, this 2-inch, DN50 valve is rated for Class 150 LB and PN20 pressure classes. It is equipped with wafer ends for easy installation and secure sealing, ideal for fluid control in various industrial applications.

The Wafer Concentric Butterfly Valve is designed to maintain a reliable seal against bi-directional pressure differentials, preventing backflow in systems that are intended for unidirectional flow. It achieves this with a precisely fitting seal, gasket, and o-ring, all precision-machined for accuracy, and features flat valve faces on both the upstream and downstream sides. The valve body includes threaded inserts on both sides, enabling installation using two sets of bolts without the need for nuts. This design allows the valve to be installed between two flanges with a separate bolt set for each flange, enabling either side of the piping system to be disconnected without disturbing the other.

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 Seating: 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