depending on the total loop resistance of your control circuit

ensuring seamless integration into existing pneumatic control systems with minimal field adjustment

it ensures that your furnace or water heater remains offline for inspection if the safety threshold is breached

Constructed with a standard 48 NEMA frame size and a durable sleeve bearing system

and VA-748x series actuators

Browning BK47H Sheave 323269-701 depending on the total loopThe Browning BK47H Sheave is a precision engineered single groove cast iron pulley designed for heavy duty power transmission in HVACR blower assemblies and industrial fan drives. With a 4. 45" outside diameter and a 4. 1" pitch diameter for B belts, this BK cast iron sheave utilizes H Series bushings to ensure a secure, slip free concentric fit on the shaft. Engineered for versatility, the Browning BK47H is compatible with 4L, 5L, A, and B section