The 551 Series of DISCAL air separators from Caleffi Hydronic Systems are designed to continuously remove air from hydronic heating and cooling systems. The air separators have a maximum working pressure of 150 psi and working temperature range of 32 to 250 degrees F. Features include brass body, glass-reinforced nylon internal element and stainless steel float guide pin and linkage. 414/238-2360; www.caleffi.com.
