Butterfly valve

Details Butterfly valve Butterfly valve

1978-05-04

1980-07-22

Cline, William R.

Valves and valve actuation

Rotary valves

Butterfly

F16K 122

Patent

active

042135958

ABSTRACT:
There is disclosed a butterfly-type valve cooperable with a valve seat element formed of an elastomeric material, wherein this element also forms a seal between two identical housing halves. There is also disclosed an improved method of making such a valve, as well as a vacuum motor for actuating the valve which incorporates a linkage mechanism having force limiting means to prevent the application of excessive forces to this valve.

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