Heat flow bypass valve through the heat and cold coolant of coolant mixed to make the air-freeze agent in the heat exchanger coolant temperature constant.
热气流旁通阀通过将热冷冻剂与冷的冷冻剂混合，使空气-冷冻剂热交换器中的冷冻剂温度保持恒定。
2
The AF valve, which is recommended for freeze protection in extreme climates, is actuated by two conditions.
AF阀门被建议用于非常气候下的防冻保护，产品由两种电缆控制。
3
The utility model relates to a back-pressure gauge valve which is freeze proof and theft proof.