flow control valve
nounUK /fləʊ kənˈtrəʊl vælv/
US /floʊ kənˈtroʊl vælv/
A flow control valve is a part that controls how much water, air, or other stuff moves through a pipe.
The plumber turned the flow control valve to slow the water down.
OTHER MEANINGS
2. A hydraulic component that sets the speed of a cylinder or motor by limiting fluid flow.
The engineer adjusted the flow control valve so the machine arm moved slowly.
3. A device in heating or cooling systems that balances how much water goes to each part.
A flow control valve keeps the radiators in the house evenly warm.
4. A valve used in engines or fuel lines to manage the amount of liquid or gas delivered.
The mechanic replaced the flow control valve to fix the fuel problem.