Shut Off Nozzle also known as a shutoff valve or shut-off gate, is a type of nozzle used in various applications to control the flow of fluid or gas through a pipeline. The primary function of a shut-off nozzle is to control or stop the flow of fluid or gas in a pipeline. Shut Off Nozzle is designed with a valve mechanism that can be operated manually or automatically to open or close the passage, regulating the flow as desired.