Description
A butterfly damper regulates airflow by rotating a disc or vane on a central pivot, changing the open area of the duct to throttle or shut off air. MEK manufactures butterfly dampers for supply, exhaust and process air lines, and they are available from MEK Uganda for commercial, industrial and residential HVAC systems.
Key Features
- Pivoting disc or vane adjusts airflow by changing aperture size
- Galvanised steel body; stainless or painted carbon steel versions
- Mounts inline in ducts or at equipment inlets and outlets
- Manual operation by handwheel, lever or handle, or automatic by electric or pneumatic actuator
- Optional position indicators
- Neoprene or silicone perimeter seals
- Easy to clean; some models have removable discs or access panels
- Accessories include insulation liners, insect screens, bird guards and actuators for building management system integration
Technical Specifications
- Sizes: 6″ to 144″
- Process temperature: Up to 2200°F
- Configurations: Round, square, rectangular
- Construction: Stainless steel or painted carbon steel (others on request)
- Shutoff: Up to 99%
- Seal options: Tadpole, metal seat, swing-through; control and balancing
- Actuation: Manual, electric or pneumatic; spring return and failsafe available
- Modulation: Open/closed or modulating
- Pressure and velocity: Up to 1 PSI and 4000 FPM process air (higher on request)
- Bearings and packing: Ball bearings and shaft packing glands standard up to 400°F
Applications
- Supply and exhaust air ducts in offices, banks and shopping centres
- Air handling units
- Ventilation ducts in factories and industrial plants
- Process air systems
- Residential HVAC
Frequently Asked Questions
How does a butterfly damper work?
A disc or vane rotates on a shaft inside the duct. Turning it changes the size of the opening, so airflow can be modulated or shut off.
Can a butterfly damper be motorised?
Yes. It can be fitted with an electric or pneumatic actuator, with spring return and failsafe options, and connected to a building management system.
Can I get a price for a butterfly damper?
Pricing depends on size, materials and quantity. Contact MEK Uganda for a quotation based on your project requirements.
To request a quotation or technical consultation, contact MEK Uganda at sales@mek.co.ug.
