551054AC Caleffi 551 Discal With Service Check Valve. 2" Sweat.

Air separator with ½" service check valve (code 561402A) to mount expansion tank
on bottom thread. Brass body. Stainless steel float guide pin and linkage. Glass reinforced nylon internal element. Max. working pressure: 150 psi. Working temperature range: 32 – 250 °F. 2" Sweat