valve

vanne, valve

Dispositif que l’on ouvre ou ferme pour régler le passage d’un liquide ou d’un gaz dans un tuyau.

En anglais simple : A device you open or close to control the movement of liquid or gas through a pipe.

• Close the valve to stop the water.
• He turned the valve slowly.
• A leaking valve caused the pressure to drop.

Expressions courantes : open the valve, close the valve, gas valve

clapet antiretour

Dispositif qui laisse passer un liquide ou un gaz dans un seul sens et empêche son retour.

En anglais simple : A device that lets liquid or gas pass in one direction and prevents it from flowing back.

• The valve prevents water from flowing back.
• A faulty valve allowed air to escape.
• These valves keep the liquid moving in one direction.

Synonymes : check valve, non-return valve

Expressions courantes : one-way valve, check valve, non-return valve

valvule, valve

Fine partie du corps qui laisse passer le sang ou d’autres substances dans un seul sens, sans retour.

En anglais simple : A thin part inside the body that lets blood or other material pass one way and stops it returning.

• One heart valve was damaged.
• The surgeon replaced the faulty valve.
• These valves prevent blood from flowing backward.

Expressions courantes : heart valve, aortic valve, valve replacement

soupape

Pièce qui s’ouvre pour faire entrer l’air et le carburant dans le moteur ou laisser sortir les gaz brûlés.

En anglais simple : An engine part that opens to let air and fuel enter, or used gases leave.

• The engine has a damaged valve.
• The mechanic replaced two exhaust valves.
• Each intake valve opens to let air into the cylinder.

Expressions courantes : exhaust valve, intake valve, engine valve