Ball valve

Details Ball valve Ball valve

F - Mech Eng,Light,Heat,Weapons

16

K

137/131

F16K 27/06 (2006.01) F16K 5/20 (2006.01) F16K 11/087 (2006.01)

Patent

CA 1271107

BALL VALVE (Abstract of the Disclosure) A ball valve comprising a housing having a cylindrical bore extending inwardly from he exterior and defining a valve chamber with inlet and outlet passages connected from the exterior of the housing to the chamber. A ball valve member is positioned axially in the chamber and has a cylindrical operating stem extending axially of the bore to a position exterior of the housing. Positioned within the chamber is a mass of resilient packing material which surrounds the ball and substantially fills the chamber. Adjustable means are provided for applying a compressive load to packing to cause it to sealingly engage the inner walls of the chamber and the exterior of the ball member. The adjustable means include a rigid circular gland member closely received in the bore and extending transversely thereof in engagement with the packing. A circular opening in the gland member closely surrounds the operating stem and disk spring means are positioned on the gland member on the side opposite the packing. Closely received in the bore outwardly of the disk spring means is a packing nut having an inner surface engaging the disk spring means. Means are associated with the packing nut and the bore for adjustably moving the packing nut member toward the packing gland to compress the disk spring means and apply a biasing force to the packing.

529213

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