petcock

• Небольшой клапан, кран или вентиль, используемый для регулировки выпуска воздуха, давления или жидкости, часто встречающийся в двигателях или водопроводных системах для слива или вентиляции.

A small valve, faucet, or cock used to regulate the release of air, pressure, or liquid, often found in engines or plumbing systems for draining or venting.

1. Small valve for draining or ventingC1formaltechnical

   A small valve or faucet used to release air, pressure, or liquid from a system, such as an engine or pipe.

   Сливной кран

   • The mechanic opened the petcock to drain the radiator fluid.
   • Make sure the petcock is closed before refilling the tank.
   • A stuck petcock can cause pressure buildup in the system.