main valve
Master flow controller
The main valve is the primary control point for flow in a system—water, gas, or other fluids.
Shutting off the main valve stops supply to everything downstream: Turn off the main valve before attempting any plumbing repairs.
In industrial contexts, it may control pressure or regulate distribution to secondary lines.
- shutoffFlow-stopping control
- shut offDiscontinue flow or power
- safety shutoffAutomatic hazard-triggered cutoff
- gateHinged barrier in fence
- controlAuthority to direct
flow control · flow · pressure · pressure relief · pipe · pipe fitting · gas line · lever · handle · water · fire hydrant · steam · hydraulic · regulator · stopcock · intake · supply · cutoff
- plumbingpipes, fittings, faucets, drains, pipe
- plumbing partsfaucet, washer, drain, gasket, fitting
- shutoffskill switch, cutoff switch, off switch, disconnect, cutout
- burner partsburner, gas jet, orifice, pilot light, igniter