Patent ID: 6401741
Filing Date: 2002-06-11
Classification: F16K,Y10T

Abstract:
An excess flow valve comprising:a valve body having a flow passageway therethrough; a closure ball rotatably supported within said valve body and having a flow passageway therethrough, the closure ball having a first rotational position in which the ball passageway is in alignment with said valve body passageway permitting flow through said valve body and having a second rotational position in which the flow passageway is out of alignment with said body flow passageway preventing flow through the valve; a closure spring biasing said closure ball towards said second (closed) position; an actuator having a first position holding said closure ball in said first (open) position and a second position permitting said closure ball to rotate by spring actuation to said second (closed) position; a paddle extending from said actuator into said body flow passageway, fluid flow through said valve impinging on the paddle and tending to displace said actuator to said second position; and an actuator spring biasing said actuator against displacement.