Outside seal and yoke valve

Details Outside seal and yoke valve Outside seal and yoke valve

F - Mech Eng,Light,Heat,Weapons

16

K

26/162, 251/56

F16K 43/00 (2006.01) F16K 27/02 (2006.01) F16K 41/02 (2006.01)

Patent

CA 1258847

OUTSIDE SEAL AND YOKE VALVE ABSTRACT OF THE DISCLOSURE A valve of the outside seal and yoke variety is provided, with a seal between a bonnet base and a valve body being axially spaced between a valve seating member and mating threads on the valve body and bonnet base. An end of at least one packing bolt is positioned within a cavity formed within the valve body, and prevents the bonnet base from unthreading from the valve body. A yoke threaded to the valve stem is rigidly secured to the bonnet base by a pair of yoke bolts and intermediate supports, and prevents inadvertent rotation of the packing bolts. The assembly technique of the present invention provides an inexpensive yet reliable OS&Y valve with all desired structural components being rigidly connected. The bonnet assembly of the present invention may be utilized with a con- ventional valve body and pocket design, thereby substantially increasing versatility and reducing manufacturing costs.

572374

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