Temperature change on medium brings about temp-response liquid in the valve chamber steaming and freezing,valve plate reciprocates open valve and choke air and drain water.

• 该阀根据进入阀腔的介质温度变化造成膜盒感温液体的汽化或冷凝，使膜盒的膜片产生变化带动阀片作往复移位启闭阀门，达到阻汽排水。