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Uni Klinger Thermostatic steam traps, in general, operate based on the temperature difference between steam and condensate. These traps use a thermostatic element, often a bimetallic or wax-filled element, to open and close a valve.

Working principal Uni Klinger Thermostatic steam trap, Its work in 6 stages as below

Start-Up Phase: When the steam system is started, the thermostatic trap is closed. In this state, the trap prevents both steam and condensate from passing through.

Heating Phase: As steam flows into the system, it heats up the thermostatic element inside the trap. The element expands or undergoes a phase change (in the case of wax-filled elements) in response to the increase in temperature.

Opening the Trap: As the thermostatic element expands or undergoes a phase change, it exerts force on a valve mechanism, causing the trap to open. This allows both condensate and steam to pass through.

Condensate Removal: Condensate, which forms as a result of the heat transfer from steam to the process, is drained out through the open trap.

Cooling Phase: When there is a decrease in temperature (due to a decrease in steam flow or a cooling process), the thermostatic element contracts or solidifies, depending on the type of element used.

Closing the Trap: The contracting thermostatic element closes the trap's valve, preventing the escape of steam while still allowing condensate to be discharged.