Thermostatic operation

Thermostatic steam traps operate on steam’s temperature difference from cooled condensate and air. Steam increases the pressure inside the thermostatic element, causing the trap to close. As condensate and non-condensable gases back up in the cooling leg, the temperature begins to drop, and the thermostatic element contracts and opens the valve.

The amount of condensate backed up ahead of the trap depends on the load conditions, steam pressure and size of the piping. It is important to note that an accumulation of non-condensable gases can occur behind the condensate backup.

NOTE: Thermostatic traps can also be used for venting air from a steam system. When air collects, the temperature drops and the thermostatic air vent automatically discharges the air at slightly below steam temperature throughout the entire operating pressure range.

Thermostatic Steam Trap Performance / Advantages: 
Flexible and reliable for opening and closing, good automatic exhaust and fast heating up.
When under lower temperatures, it is cold resistance, water hammer resistance and thermo-resistance.
Small size, light weight and can be installed in any mode.
When few or none condensation water, no fresh steam leakage.