Overview: The Cleaver-Brooks Stack Damper is engineered for optimal performance and reliability in controlling chimney draft. It can function as an on-off system to minimize boiler standby losses or integrate with the C-B Sequencing Draft System to manage excessive draft, enhancing heat transfer and combustion efficiency while reducing pilot failure incidents.

Features: The Stack Damper is a robust multi-blade system, designed for easy installation in pressure stacks ranging from 12 to 44 inches in diameter. It features opposing damper blades for precise draft control, constructed from #10 gauge carbon steel and reinforced with a 3/4” diameter cold rolled steel shaft. The shaft is supported by high-temperature ball bearings with Graphalloy® bushings. The system includes heavy-duty cast iron arms and ball joints for smooth operation, driven by a control motor with torque between 150 and 600 inch pounds, and operated by either a 0-135 ohm or a 4 to 20 mA signal. Safety is ensured with a pressure switch and external limit switch to confirm damper opening before burner firing. The maximum temperature rating is 600°F.

Specifications: The damper assembly is available in various sizes to fit stack IDs from 12 to 44 inches, with specific dimensions provided for each size. The table lists part numbers and corresponding dimensions for each stack size, ensuring compatibility and ease of installation.

Key Benefits: The Stack Damper reduces boiler standby losses, is compatible with the IC Sequence Draft System, and fits pressure stacks from 12” to 44” in diameter. It is equipped with high-temperature bearings for durability.

Contact Information: For more details, Cleaver-Brooks can be contacted at their Monroe, WI location, via phone at 608.325.3141, or through their website at cleaverbrooks.com.