Armstrong All Stainless Steel Thermostatic TAVB Air Vent with Vacuum Breaker

Armstrong All Stainless Steel Thermostatic TAVB Air Vent with Vacuum Breaker
Thermostatic air vent is used to relieve the air during start-up in a steam chamber such as a steam jacketed kettle because air/gas can become an insulator in a steam heating system

For steam heating systems that uses a modulating control valve, the steam chamber can become a vacuum and temporarily prevent the steam trap from draining the condensate inside the steam chamber. This results in condensate/water flooding inside the steam chamber and thus creates water hammer and corrosion of the steam heating equipment & its accessories in the long run.

To solve the problem above, Armstrong has developed:
A combination of thermostatic air vent & vacuum breaker

NOTE:
PLEASE WATCH THE VIDEO WHY WE HAVE TO GET RID AIR FROM STEAM SYSTEM HERE !