The Belimo KH-AFB Crankarm is a heavy-duty linkage accessory specifically engineered for high-torque AFB and NFB series actuators

Safety Compliance: Designed as a normally open SPST switch that closes only when the draft inducer motor reaches the proper RPM

The Functional Devices RIBMN24S is a high-reliability 2

Field Versatility: Compatible with a wide range of Johnson Controls pneumatic actuators for steam and chilled water valves

Automatic Reseating: Eliminates the need for manual resets after a relief event

Burnham Boiler 6111715 Assembly Freon The Belimo KH-AFB Crankarm isThe Burnham Boiler 6111715 Draft Inducer Assembly is a critical combustion component designed to maintain precise static pressure and exhaust flow within high efficiency hydronic systems. This OEM Burnham blower assembly serves as the direct replacement for 8116142, ensuring seamless mechanical compatibility without the need for mounting modifications. Engineered for durability in high heat environments, this centrifugal inducer fan facilitates the