[Essential information]
      Working principle: according to the change of the valve cavity temperature is a corrugated tube temperature of liquid vaporization or condensation, corrugated pipe internal pressure change driven bellows driven spool displacement to open and close the valve seat hole to stop gas drainage.

Main material list：

[Valve features]
       

Open and close action is sensitive and reliable, automatic exhaust air performance is good, can ensure heating flow heating up quickly.

In the low temperature environment, not afraid of freezing, water shock, overheating. Small in size and light in weight and can be mounted in any way. There is no fresh steam leakage in the condition of very little condensed water formation.

[Adaptive condition]
      The valve is a wide range of practical, energy-saving, environmental protection open drain valve, is the main steam heating pipeline, small heating equipment and petrochemical industry material accompanied by heat, valve material with one of the best hot traps.