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

International ALERT Academy, Big Sandy, TX

“I have not had to vent a coil in the three months since

Penn State University - State College, PA
Penn State is one of our largest university customers with more than 90 units installed across campus.
Boehringer Ingelheim - St. Joseph, MO
Custom 20" high velocity dirt and sediment separator with removable top head for access to Spirotube® element bundle.
Dirt Separator Piping
Install the Spirotrap® typically ahead of the system component being protected, such as the boiler in this drawing.