Refrigeration modulating valve sealing device

Details Refrigeration modulating valve sealing device Refrigeration modulating valve sealing device

2005-04-05

2005-04-05

Keasel, Eric (Department: 3754)

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

C251S357000

Reexamination Certificate

active

06874753

ABSTRACT:
A sealing device for a modulating valve of the type having a valve body defining a flow passage, an inlet and outlets, a valve displaceable in the flow passage, and an actuator having an actuator rod rotatably coupled to the valve for displacing the valve in the flow passage. The sealing device comprises a body surrounding the actuator rod. A connector is adapted to secure the body of the sealing device to the valve body. Seals are provided between the body of the sealing device and the actuator rod arid between the body of the sealing device and the valve body, to prevent fluid flow therebetween. The body of the sealing device and the seals are adapted to conceal and contain fluid leaks, whereby no fluid is lost due to a leaking modulating valve.

REFERENCES:
patent: 3405947 (1968-10-01), Roemer
patent: 4307745 (1981-12-01), McGee
patent: 4509719 (1985-04-01), Uomala et al.
patent: 4601304 (1986-07-01), Schobl
patent: 4676268 (1987-06-01), Sano
patent: 4945941 (1990-08-01), Kocher

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