172-65453MA-06 (JH5RL-P/JH5RH-P) 31 Jul 2017
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
A
A
A
