noun
safety valve
A mechanical device that automatically releases pressure from a system to prevent accidents. Also used figuratively for an outlet that relieves stress or tension.
ボイラーにはセーフティーバルブが付いている。
The boiler is equipped with a safety valve.
彼にとってジョギングはストレスのセーフティーバルブだ。
For him, jogging is a safety valve for stress.
Variant with a middle dot; less common but still seen.
The native Japanese equivalent of 'safety valve', used in technical contexts. セーフティーバルブ is the loanword and may sound slightly more modern or casual.
Loanword from English 'safety valve'.