Housing for gate valves

Details Housing for gate valves Housing for gate valves

F - Mech Eng,Light,Heat,Weapons

16

K

251/73

F16K 3/00 (2006.01) F16K 27/04 (2006.01) F16K 27/10 (2006.01)

Patent

CA 1103646

1957-39a ABSTRACT OF THE DISCLOSURE The housing of a gate valve has a forged lower section and a forged bonnet. The lower section has two halves which are mirror symmetrical to each other with reference to the central plane of the gate and are bonded to each other by a circular welded seam. A circular or oval welded seam connects the lower section to the bonnet, and the lower section has a guide groove for the gate. The groove is bounded by two surfaces forming part of circular surfaces whose centers are located on an axis including the center of curvature of the seam between the two halves of the lower section. This simplifies the machining and assembly of the lower section because the surfaces bounding the guide groove can be machined simultaneously with the edge faces bounding the seam between the halves of the lower section. -1-

342279

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