Install the Spirovent® at the point of lowest solubility, which is the place in the system where the temperature is the highest and pressure the lowest. Note as well to always "pump away" from the expansion tank, never towards it.
Related Work
Unocal - Pacific Northwest, US
4" Spirovent® air eliminator being used to control foam in a bottling operation for transmission fluid and motor oil.
IM Flash Technologies - Lehi, UT
Custom 14" all stainless steel high velocity air eliminator for process chilled water.
Silence is Golden (Yellow) for Berners-Schober
“The pumps are much quieter as is the circulating water
International ALERT Academy, Big Sandy, TX
“I have not had to vent a coil in the three months since