Caleffi 551007AC DISCAL® Air Separator, 1-1/4″ NPT, Brass, w/ Expansion Tank Check

Description

The Caleffi 551007AC is a DISCAL air separator with a 1-1/4 in NPT connection and a brass body, engineered to continuously remove entrained air from closed-loop hydronic heating and cooling systems down to the micro-bubble level.

Product data compiled from Caleffi North America technical documentation. Last reviewed June 2026.

FunctionAir Separation