Spacer plates for gate valve seat assemblies

Details Spacer plates for gate valve seat assemblies Spacer plates for gate valve seat assemblies

1978-09-28

1979-12-18

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

With positive reduction

251196, 251328, F16K 2500

Patent

active

041790987

ABSTRACT:
A gate valve having a gate assembly of the expanding type employing a gate element (34) and segment (36) with adjacent wedge surfaces to expand the gate mechanism in both open and closed positons. Opposed floating seat skirts (68) having integral seat assemblies (52, 54) are positioned on opposite sides of the expanding gate valve and have facing slots (76) therein to receive spacer plates (82) therein which maintain a predetermined spacing between the skirts to minimize any binding of the skirts against the gate assembly and to provide a predetermined minimum clearance between the skirts at all times.

REFERENCES:
patent: 2906491 (1959-09-01), Young
patent: 3036813 (1962-05-01), Headrick
patent: 3768774 (1973-10-01), Baugh
patent: 3823911 (1974-07-01), Natho

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