Valve assembly for packing removal

Details Valve assembly for packing removal Valve assembly for packing removal

1981-01-05

1983-07-26

Rosenthal, Arnold

Fluid handling

With repair, tapping, assembly, or disassembly means

Assembling, disassembling, or removing cartridge type valve

251214, 251330, 277 9, F16K 4102, F16K 4114

Patent

active

043948723

ABSTRACT:
A valve assembly for packing removal includes a valve body having a bonnet and yoke attached to the body and a chamber extending longitudinally 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.

REFERENCES:
patent: 2809059 (1957-10-01), Hillis
patent: 3147950 (1964-09-01), Milleville
patent: 3237917 (1966-03-01), Kunzer et al.
patent: 3851853 (1974-12-01), Teeters

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