the 50VA rating provides extra headroom

and sensor

Precision Metering: Delivers consistent nominal capacity for accurate evaporator feeding and high-efficiency heat transfer

an aspirator wallbox or flush wallplate may be required depending on the thermostat model

Enhanced Durability: Equipped with thermal overload protection and a rugged frame for extended service life in demanding environments

Belimo B312B Valve 322055-301 the 50VA rating provides extraWhen you need a reliable 3 way ball valve for precise hydronic control, the Belimo B312B valve is a robust choice. This 1 2" NPT valve, featuring a 3. 0 Cv, is engineered for demanding HVAC applications. Its nickel plated forged brass body, chrome plated brass ball, and nickel plated brass stem ensure durability and chemical resistance, making it suitable for chilled or hot water systems up to 250F (120C), including those with up to 60% glycol