Butterfly valve

Details Butterfly valve Butterfly valve

F - Mech Eng,Light,Heat,Weapons

16

K

251/27

F16K 1/22 (2006.01)

Patent

CA 1098886

ABSTRACT OF THE DISCLOSURE: A butterfly valve with a seal face having two opposite, essentially spherical sections intersected by a symmetry plane through the throttle which coincides with the torsional axis of the throttle and two opposite, essen- tially conical sections on both sides of the symmetry plane. The spherical and the conical sections successively merge into each other. When the throttle is revolved, the conical surfaces are pressed against a valve seat shaped as a circular ring made of steel. This seat then assumes a more and more elliptical shape finally to adjust itself entirely to the elliptical mean line of the seal face.

326035

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