Chemically-resistant fluid control valves

Details Chemically-resistant fluid control valves Chemically-resistant fluid control valves

1994-07-15

1996-10-15

Fox, John C.

Valves and valve actuation

Rotary valves

Butterfly

137375, A16K 122

Patent

active

055646794

ABSTRACT:
A chemically-resistant fluid control valve is disclosed generally comprising fluid inlet and outlet passages separated by fluid control means, which control means comprise a flapper plate disposed in the fluid passageway and mounted on a rotatable shaft that passes laterally through the fluid passageway by means of releasable fasteners adapted to engage correspondingly-shaped fastener elements of the flapper plate, which elements are also adapted to receive the shaft in a channel between the fastener elements, wherein at least all wetted surfaces of each of the several components consist essentially of a chemically-resistant material.

REFERENCES:
patent: 3425439 (1969-02-01), Duffey et al.
patent: 4604254 (1986-08-01), Yamamoto et al.
patent: 4674528 (1987-06-01), Nishio et al.
patent: 4828221 (1989-05-01), Scobie et al.

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