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Steam Trap

Thermostatic Steam Traps: L series

 

The X-element is open at start-up because the system is cold. Large amounts of air and low temperature condensate are rapidly discharged through the open valve, thereby reducing the start-up time.

When the temperature inside the trap rises, it causes the thermoliquid inside the X-element to expand. The valve remains open until the temperature approaches the saturation temperature of the inlet steam pressure. Once the temperature inside the trap rises close to the saturation temperature of the inlet steam pressure, the valve closes.

When the inflow of condensate begins, the X-element is cooled causing the valve to open immediately, and condensate is discharged in the intermittent operation representative of disc type traps. If the amount of condensate is extremely small, however, the valve opens only slightly and a dribble-discharge type of operation takes place. In addition, the trap reacts with great sensitivity to temperature differences to rapidly discharge air that is close to the saturation temperature.