Browning 3B5V70 Sheave 328140-751 this is the guard only

this is the guard only

Optimized Heating Control: Precision modulation within a 160°F to 205°F range for high-temperature fluid loops

For a full pneumatic thermostat installation

two-pipe pneumatic thermostat engineered for the proportional control of pneumatic valve and damper actuators within commercial HVAC systems

Browning 3B5V70 Sheave 328140-751 this is the guard onlyProfessional grade Browning 3B5V70 Sheave is a high performance power transmission component designed for heavy duty HVACR and industrial blower applications. This 7. 28" Outside Diameter mechanical pulley features a three channel combination groove design, allowing for maximum drive flexibility. Constructed from high density close grain cast iron, the 3B5V70 is engineered to work seamlessly with B series split taper bushings, ensuring a secure,