Caleffi 551041AC DISCAL® Air Separator, 1-1/2″ Sweat, Brass, w/ Expansion Tank Check

Description

The Caleffi 551041AC is a DISCAL air separator with a 1-1/2 in sweat 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