초록 ▼

A valve and an arrangement for a fire suppression water sprinkler system includes a valve which has an inlet and an outlet with a restricted orifice to limit the flow through the valve to correspond to the flow through a single sprinkler head. The valve has a biasing member so that the valve opens w

A valve and an arrangement for a fire suppression water sprinkler system includes a valve which has an inlet and an outlet with a restricted orifice to limit the flow through the valve to correspond to the flow through a single sprinkler head. The valve has a biasing member so that the valve opens when the pressure in the inlet exceeds a predetermined pressure and the valve may be opened manually to test the system or to drain the system.

대표청구항 ▼

1. A valve, comprising:a housing defining an interior chamber having an inlet and an outlet; means for limiting a flow through the valve housing from the inlet to the outlet corresponding to a preselected flow rate corresponding to the flow through a single sprinkler head; valve means for preventing

1. A valve, comprising:a housing defining an interior chamber having an inlet and an outlet; means for limiting a flow through the valve housing from the inlet to the outlet corresponding to a preselected flow rate corresponding to the flow through a single sprinkler head; valve means for preventing the flow between the inlet and the outlet said valve means including biasing means for permitting the flow between the inlet and the outlet when the pressure in the inlet of the valve exceeds a predetermined pressure; and means for manually permitting the flow between the inlet and the outlet of said valve means: wherein said means for manually permitting the flow between the inlet and the outlet of said valve means includes a rod extending through said valve means; wherein said valve means includes a valve member which sealingly engages a valve seat; and wherein said valve member is movable over said rod.