Caleffi 535059A Boiler Feed Auto Filling Valve 3/4" Sweat

The Caleffi 535059A Boiler Feed Auto Filling Valve is an efficient part that allows the filling of hydronic heating systems with the right pressure automatically. This valve is designed to provide water supply to boilers and safeguard HVAC systems equipment from pressure variations, available with a 3/4” sweat connection for installation. It is a small and robust heater that is suitable for home and small commercial space heating. This valve is especially helpful for regulating the system efficiency, avoiding air presence, and protecting from pressure loss, providing the required heating and preserving the system’s durability. Therefore, by removing the need for people to continuously refill the system, it increases its standard performance and productivity.