不ふ凍とう栓せん

noun

freeze protection valve

A valve designed to prevent freezing in pipes or equipment, typically used in cold climates or refrigeration systems.

• 寒かん冷れい地ちでは、水すい道どう管かんに不ふ凍とう栓せんを取とり付つけることが推すい奨しょうされます。

  In cold regions, it is recommended to install freeze protection valves on water pipes.