172-65129A-03 (GAS1N/GAS2N/GAS3N) 23 Oct 2018
10
The Need for a Pressure-balancing Line
In principle, gas traps automatically and continuously discharge condensate that
flows in. However, gas caught in the piping or trap body may obstruct condensate
flow. This phenomenon is called “air binding”. Air binding occurs more often in piping
with long horizontal lengths, smaller diameters or multiple bends. To prevent air
binding and ensure gas can be displaced by incoming condensate, a pressure-
balancing line should be installed between the trap cover and the dry portion of the
receiver tank or gas main.
Connect the pressure-balancing line in the following manner:
Receiver Tank
Gas Main
Secondary Side Precautions
Take measures to ensure the proper handling, such as recovery or
dilution, of hazardous fluids discharged at product outlets. Outflow of
fluid or fluid leaks may lead to hazards such as flammable conditions or
corrosion, which may result in injury, fires, damage or other accidents.
CAUTION
Be sure to take precautions on the secondary side when using flammable, toxic or
other hazardous gases.
Sample precautionary procedures:
1. Flare method
2. Collection in a seal pot
3. Collection in a sealed container
Pressure-balancing Line
Pressure-balancing Line
