Operation
Principles of condensate discharge:
As much air as possible should be eliminated at start-up using a bypass valve or blowdown
line.
1.
Condensate Discharge
As steam is supplied, condensate flow begins. The rising condensate level causes the
float to rise due to buoyancy, opening the orifice (A) and allowing condensate to be
discharged.
2.
Discharge of Large Quantities of Condensate
Increases in the condensate inflow rate cause the condensate level in the trap to rise.
The float consequently rises and enlarges the opening of the orifice (A), allowing more
condensate to be discharged. In this manner, continuous condensate discharge occurs
while the opening size of the orifice varies depending on the condensate flow rate.
3.
Closed Position
When the condensate flow rate decreases, the float falls, closing off the orifice (A)
opening. A water seal is maintained at all times over the orifice (A) to prevent steam
loss.
Air
Steam
Condensate
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