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
Silence is Golden (Yellow) for Berners-Schober
“The pumps are much quieter as is the circulating water
Industrial Gallery
Spirovents have been installed in many new and existing industrial HVAC systems.
Dirt Separator Piping
Install the Spirotrap® typically ahead of the system component being protected, such as the boiler in this drawing.