Valve assembly for packing removal

Details Valve assembly for packing removal Valve assembly for packing removal

F - Mech Eng,Light,Heat,Weapons

16

K

251/56

F16K 41/00 (2006.01)

Patent

CA 1170242

VALVE ASSEMBLY FOR PACKING REMOVAL ABSTRACT OF THE DISCLOSURE A valve assembly for packing removal includes a valve body having a bonnnet and yoke attached to the body and a chamber extending logitudinally through the bonnet. A stem secured in the yoke extends through the bonnet chamber. Valve packing means are enclosed in the bonnet around the stem and secured by a packing gland connected to the top of the bonnet. An annular drive bushing is mounted in the bonnet chamber around the stem below the bottom of the packing means. In actuation of the drive bushing, mechanical or fluid drive means engage the bottom of the drive bushing, with the packing gland removed from the bonnet, to displace the drive bushing upwardly through the bonnet chamber for removal of the packing means therefrom.

395370

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