초록

A valve has an integral flow switch with a passageway provided through the valve member such as a butterfly disk to an inlet of the flow switch. An outlet of the flow switch communicates with the outlet of the valve.

대표청구항 ▼

[What is claimed is:] [1.]a housing defining an interior chamber having an inlet and an outlet;valve means for controlling a flow between the inlet and the outlet including a valve member which is movable to an open position in which flow is permitted between the inlet and the outlet and which is mo

[What is claimed is:] [1.]a housing defining an interior chamber having an inlet and an outlet;valve means for controlling a flow between the inlet and the outlet including a valve member which is movable to an open position in which flow is permitted between the inlet and the outlet and which is movable to a closed position in which flow is blocked between the inlet and the outlet;flow switch means for detecting a flow through said valve;means for providing communication between the valve inlet and an inlet of the flow switch means when said valve member is in said open position; andmeans for providing communication between the valve outlet and an outlet of the flow switch means. [10.]