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

American Museum of Natural History - New York, NY
Custom fabricated 30" high velocity air eliminator installed to solve noise problems in the existing system.
Dirt Separator Piping
Install the Spirotrap® typically ahead of the system component being protected, such as the boiler in this drawing.
Potawatomie Bingo Casino - Milwaukee, WI
Two custom fabricated 20" high velocity air eliminators.
Waukesha Memorial Hospital
The Spirovent was selected and installed to prevent dirt and sediment in the existing system from reaching a new addition and improvements went even beyond that.