Xylem-Hoffman Specialty 401432 Vacuum Vent 1/2" FNPT X 3/4" MNPT 3 PSIG 76

The Xylem-Hoffman Specialty 401432 76 Vacuum Vent is an essential part that helps to remove unwanted air in low-pressure HVAC systems for maximum system efficiency. This vent helps in circulation and does not allow air-bound problems to occur. It has a 1/2” female NPT inlet and a 3/4” NPT outlet and operates at 3 PSI. The Model 76 works by opening under vacuum and thus allowing the air to be evacuated and closing tightly when not in use. It is used in hydronic heating systems to prevent air from damaging the pumps and other parts of the system.