Elastomer coated butterfly valve body

Details Elastomer coated butterfly valve body Elastomer coated butterfly valve body

1982-03-25

1985-04-16

Chambers, A. Michael

Fluid handling

With casing, support, protector or static constructional...

Jacketed

251305, F16K 122

Patent

active

045109656

ABSTRACT:
The annular cast body 1 of a butterfly valve is coated both internally and externally, including the butterfly shaft and axle passages 12, 13, with an elastomeric material 2 of the same type and hardness at all points of the valve body. The coating has a thickened band 15 which acts as a seat for the butterfly, and is molded around the valve body rather than being glued.

REFERENCES:
patent: 3778028 (1973-12-01), Graves et al.
patent: 3904173 (1975-09-01), Naylor
patent: 4259980 (1981-04-01), Muller

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