172-65450MA-06 (JH5SL-P/JH5SH-P) 8 Nov 2021
5
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 the orifice (A) opening. A water
seal is maintained at all times over the orifice (A) to
prevent steam loss.
Air
Steam
Condensate
