閉へい止し

noun, noun or participle which takes 'suru'

stoppage; shutoff; closure

Technical term for stopping or shutting off flow, especially in piping, valves, or machinery. Often used in engineering contexts.

• バルブの閉へい止しを確かく認にんしてください。

  Please confirm the valve shutoff.

• 緊きん急きゅう時じにはガスの供きょう給きゅうを閉へい止しする必ひつ要ようがある。

  In an emergency, it is necessary to shut off the gas supply.