stop valve

Meaning

A valve that may be turned to regulate the flow of fluid through a pipe (especially water through a mains supply)

Synonyms

cut-off valve

disconnecting valve

sluice valve

throttle

main steam valve

shutoff valve

isolating valve

throttle flap

shut-off valve

overspeed valve

steam-outlet valve

disconnection valve

flow regulating valve

restrictive valve

baffler

flow-controlling gate

block valve