stopvalve
nounUK /ˈstɒpˌvælv/
US /ˈstɑːpˌvælv/
A stopvalve is a small part that you turn to stop or start water or gas flowing through a pipe.
Dad turned the stopvalve to shut off the water before fixing the leaky sink.
RELATED WORDS
OTHER MEANINGS
2. A valve used to isolate a section of a pipeline for maintenance.
The engineer closed the stopvalve so the crew could repair the broken pipe.
3. A device that regulates the flow of fluid in an engine or machine.
A faulty stopvalve caused the engine to lose fuel pressure.
4. A tap or valve that can be closed completely to halt flow.
Make sure the stopvalve is fully closed before you drain the tank.