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Forged steel extended body gate valve is the gate valve with the extended body. And the forged steel is used for most components of this kind of gate valve. Actually, the forged steel is able to improve the durability and resistance to corrosion.
The extended body of the forged steel extended body gate valve is commonly available in two bonnet designs. The first design is the Bolted Bonnet, with male-female joint, spiral wound gasket, made in F304L/graphite,ring joint gasket are also available on request. The second design is the welded bonnet, with a threaded and seal welded joint. On request a full penetration strength welded joint is available.
And the features of the forged steel extended body valve can be summarized as (1)Two piece self-aligning packing gland; (2)Integral extended body with threaded, socket weld or butt weld connection; (3)Bolted bonnet with spiral wound gasket or threaded and seal welded bonnet; (4)Integral backseat; (5)Socket weld ends to ASME B 16.11; (6)Screwed ends(NPT) to ANSI/ASME B1.20.1; (7)Outside screw and Yoke(OS&Y)