A VALVED DISPENSING SYSTEM WITH HYDRAULIC HAMMER PROTECTION FOR THE VALVE

摘要

A system including a discharge conduit (41) defining a flow passage for establishing fluid communication with liquid from a container. A resilient valve (80) is provided to extend across the discharge flow passage (52). The valve (80) defines a dispensing orifice (84) that opens when pressure on the valve interior side exceeds the pressure on the exterior side by a predetermined amount. A resilient baffle is located upstream of the valve (80). The baffle includes an occlusion member (142) supported by at least on e resilient support member (144) which accommodates movement of the occlusion member (142) between a closed position occluding flow into at least a portio n of the conduit flow passage when the baffle is subjected to an upstream hydraulic hammer pressure, and biases the occlusion member (142) to an open position permitting flow into the conduit flow passage adjacent the valve (8 0) when the baffle is not subjected to a hydraulic pressure.