relief valve
4
3.9
- noun
- Specialized
:
válvula de alivio
- Here are the internals of the pressure relief valve.
- safety relief valve
Examples
-
There were pressure relief valves built into the casing to relieve pressure in both directions.
Blog text (14) -
There are safety relief valves (SRVs) that open automatically at high vessel pressure and release steam into the suppression pool.
Blog text (20) -
On a pressure cooker, this is known as the relief valve.
Blog text (5) -
A gurgle issued forth from a relief valve on top of the unit.
Fiction book (1999) -
The pressure relief valve assembly is on the right (3).
Blog text (12) -
The relief valve seat and seal are also field-replaceable.
Academic text (1997) -
The resultant transient in water level and pressure... caused the turbine to trip and for safety relief valve number eight... to open automatically.
-
Accessories such as foot valves, unloaders, pressure regulators, and safety relief valves are available.
Academic text (1997) -
On the fifth day after digester inoculation, excess biogas tripped a relief valve and the first farm-based digester in the United States came to life.
Academic text (2000) -
The engineer explained that the relief valve opens automatically to release excess pressure when the container gets too full.
Synonyms
1
3.7
A part on a boiler or similar machine that automatically lets out steam when pressure gets too high
A device that opens by itself to let out extra pressure and prevent explosions
A valve that opens by itself to let out extra pressure in a steam boiler
A part that opens by itself to let out pressure and prevent an accident
How Sensitive
Surface Forms
Morphology
The compound is compositional: 'relief' (easing of pressure/pain) plus 'valve' (a flow-control device) yields a valve whose function is to provide relief by releasing pressure. This instrument-purpose noun+noun pattern is common and cross-linguistically transparent, so a B1 learner who knows both constituents can reasonably infer the MWE meaning.
Etymology
Relief valve gives a clear picture: a valve is like a small door and relief means help or release. When pressure builds, the door opens to let out steam or air and give 'relief' to the tank, so relief valve means a valve that opens to 'release pressure' and keep things safe.