release valve

Steam lets off

A release valve is a mechanism that lets pressure escape from a container or system when it builds too high, preventing rupture or explosion.

Figuratively, a release valve is anything that allows pent-up emotions or tension to dissipate safely: Exercise is my release valve after a stressful day at work.

Also called a pressure relief valve or safety valve.

Related

escape · hiss · safety · safety first · overflow · exhale · tension · blow-off · blowing off · pop off · boiler · pop · whistle · burst · gauge · piston · pipe · pipe fitting

Categories
Opposites
pressure function

release valveseal

Authentication stamp or mark

check valve · compressor · pressure vessel · pressurizer · accumulator

flow control action

release valveshutoff valve

Device halting fluid flow

stop valve · gate valve · plug · stopper · ball valve

metaphorical function

release valvepressure cooker

Sealed pot using steam

bottleneck · suppression · repression · containment · constraint

Family

release, valve, releases, released, releasing, releasable, valves, valved, relax

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G