Butterfly valve

Details Butterfly valve Butterfly valve

1993-01-27

1993-12-14

Fox, John C.

Valves and valve actuation

Rotary valves

Butterfly

137375, A16K 122

Patent

active

052694933

ABSTRACT:
There is disclosed a butterfly valve having a body forming a continuation of the flowway in which it is installed, bearing housings mounted on the body to connect with side openings from the flowway, a stem rotatable in the bearing housings and extending into the flowway, and a disc rotatable with the stem within the flowway. The periphery of the disc is spaced from the flowway and engages stops about the flowway when the disc is transverse to the flowway. The inner ends of the bearing housings extend into annular recesses in the ends of the disc, and wear-resistant sleeves are received over the inner ends of the bearing housings to span the gaps between the disc and flowway adjacent the ends of the stops.

REFERENCES:
patent: 4079747 (1978-03-01), Roberts
patent: 4303094 (1981-12-01), Rothwell et al.
patent: 4380246 (1983-04-01), Carole et al.
patent: 4406441 (1983-09-01), Luberch et al.
Triten Corporation Drawing No. 00010-1014, "1524 (60") Expander Inlet Butterfly Valve, " Dec. 20, 1990, Sheet Nos. 1 of 2 and 2 of 2.
Brochure of TAPCO, Div. of Triten Corporation, "Tapco Butterfly Valves" Feb. 1987.

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