Zone control valve removal tool and method

Details Zone control valve removal tool and method Zone control valve removal tool and method

1980-01-11

1981-12-15

Jones, Jr., James L.

Metal working

Means to assemble or disassemble

Valve applying or removing

29263, B23P 1904

Patent

active

043051936

ABSTRACT:
A tool and method are disclosed for removing a valve core or element from a valve which is under pressure without requiring that the system be shut down and the pressure relieved. A tool having a passage therethrough sized to accommodate the valve element to be serviced is bolted over the valve and the valve element is drawn therein and the tool closed to isolate the passage and the element from the pressurized system thereby allowing the element to be repaired or replaced.

REFERENCES:
patent: 3561090 (1971-02-01), Fritch
patent: 3579796 (1971-05-01), Fillion
patent: 3840967 (1974-10-01), Olson
patent: 4059883 (1977-11-01), Osborne

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