The Honeywell 27518 is a high-strength Adjustable Crank Arm engineered for industrial HVAC and burner control applications. Designed to provide a secure mechanical connection between a Honeywell Modutrol Motor shaft and a damper or valve linkage system, the 27518 allows for precise stroke adjustment. This heavy-duty crank arm is a critical component for ensuring the accurate modulation of air and fuel valves in combustion and ventilation systems.
Technical Specifications
- Part Number: 27518
- Manufacturer: Honeywell
- Component Type: Adjustable Crank Arm
- Shaft Compatibility: Fits 3/8 inch (9.5 mm) square motor shafts
- Adjustment Range: Fully adjustable radius for variable stroke length
- Material: Heavy-duty plated steel for corrosion resistance
- Compatible Motor Series: Honeywell Modutrol IV (M62, M72, M91, M94, M9184)
Key Features
- Precision Linkage Control: Allows for infinite radius adjustments, enabling field technicians to fine-tune the leverage and travel distance of the damper or valve.
- Durable Construction: Built from reinforced steel to withstand the high-torque requirements of industrial actuators without slipping or bending.
- Universal Modutrol Fit: Specifically machined for a perfect fit on the square drive shafts of the Honeywell Modutrol motor family, ensuring zero-backlash performance.
- Easy Installation: Features a simplified clamping mechanism for rapid mounting and adjustment during system commissioning or maintenance.
Industry Applications
- Burner Control Systems: Managing fuel-to-air ratios by controlling the mechanical linkage of butterfly valves and air dampers.
- Commercial HVAC: Actuating large-scale intake and exhaust dampers in air handling units (AHUs).
- Boiler Modulation: Precise positioning of secondary air dampers to optimize combustion efficiency.
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