172-65129A-03 (GAS1N/GAS2N/GAS3N) 23 Oct 2018
6
Operation
Principles of condensate discharge from a gas medium:
1. At Start-up
At start-up, a small amount of condensate will
have accumulated in the body. The float and the
orifice will from a water-seal.
NOTE: When there is no condensate in the
body, it will be necessary to prime the
trap with a small amount of liquid through
the pressure-balancing line to ensure a
seal (after initial installation and after
disassembly maintenance).
2. Condensate Discharge
As condensate enters the trap, the float rises
due to buoyancy, opening the orifice and
allowing condensate to be discharged.
Increasing condensate inflow causes the float to
rise more further enlargening the opening. 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 opening. A water
seal is maintained at all times over the orifice to
prevent steam loss.
Condensate
Gas
Orifice
Pressure-balancing
Line
