Valves are available in three bonnet designs,The first design is the bolted bonnet,with male-female jiont,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,The third design is the pressure seal bonnet,with a threaded and pressure seal bonnet joint.

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