Patent ID: 6092550
Filing Date: 2000-07-25
Classification: F16K,Y10T

Abstract:
A valve diaphragm seat arrangement for a diaphragm valve of the type having a first body with fluid inlet and outlet openings therein and a diaphragm for controlling flow between said inlet and outlet passages, the valve diaphragm seat arrangement comprising: a first collar that surrounds one of said fluid openings and that extends axially toward said diaphragm; a second collar that is radially spaced outward from said first collar to form a recess there between; said second collar extending axially toward said diaphragm a distance substantially greater than said first collar; a valve seat partially disposed in said recess; said seat extending axially beyond said second collar and being retained in said recess by said first collar; said seat having an upper surface that engages with and forms a seal with a portion of said diaphragm to close said one opening.