Butterfly valve with an improved obturation device

Details Butterfly valve with an improved obturation device Butterfly valve with an improved obturation device

1982-01-29

1984-03-13

Schwadron, Martin P.

Valves and valve actuation

Rotary valves

Butterfly

251306, F16K 122

Patent

active

044362811

ABSTRACT:
The invention relates to a butterfly valve having an improved closure element. This valve comprises a seat perpendicular to the axis of the valve and an offset butterfly gate, optionally off-center in relation to its drive axis, the peripheral edge surface of the butterfly gate presenting a form such that its normals in the regions situated on both sides of the plane of symmetry of the butterfly gate, passing through its axis of rotation, intersect the axis of symmetry of the joint or seal at two distinct points, C.sub.1 and C.sub.2.

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