Document Type and Number:
Japanese Patent JPS4733323
Kind Code:
A
Abstract:
The disclosure concerns a butterfly valve having a resilient, adjustable body seat for the pivoting disc. The seat comprises an elastomeric ring which is confined at one end by the transverse wall of an annular groove in the valve body and at the other end by a clamping ring which slides along the wall of the flow passage extending through the body. The clamping ring is forced against the seat ring by a plurality of individual screw actuators spaced around its circumference, and therefore selected portions of the seat ring can be compressed as needed to produce a leak-free seal around the entire periphery of the pivoting disc.
Application Number:
JP2691472A
Publication Date:
November 17, 1972
Filing Date:
March 16, 1972
Export Citation:
International Classes:
F16K1/226