PVC Duct Actuated Butterfly Dampers

PVC duct actuated butterfly dampers are ducting system components made to adjust the flow rate of air or gaseous media through PVC ductwork. These dampers are made for use with an actuator, either manual or motorized, to allow automatic opening and closing of the damper to meet system needs. Actuator motors can be provided with the damper on request. Actuated duct dampers provide operators the ability to fine tune ventilation performance and manage air distribution between different areas of a building or specific worksite processes. They are primarily used to control the flow of air or gasses through ductwork in ventilation, heating, and air conditioning (HVAC) systems and in various industry applications that require precision air regulation. PVC duct actuated butterfly dampers feature a rotatable disc with a 90° axis of rotation for a seamless transition and full range of flow control between open and closed. In motorized versions, the damper disc angle can be automated and controlled remotely. PVC duct actuated butterfly dampers provide effective airflow management, help maintain desired environmental conditions, improve energy efficiency, and protect equipment by preventing backflow. They can also contribute to onsite safety by controlling the release or spread of harmful gasses in emergency situations.

Actuated butterfly dampers are made from lightweight and corrosion resistant polyvinyl chloride (PVC) plastic, making the fittings suitable for hardworking ventilation systems that handle chemical vapors, fumes, exhausts, or moisture. The dampers feature a stainless steel locking quadrant for permanent position set, have all plastic internal parts, and offer an approximate 95% seal with a less than 5% air-flow restriction. They can be installed either vertically or horizontally within PVC duct pipelines.

These are USA made PVC duct actuated butterfly dampers built by Harrison Machine and Plastic under the trade name SUPERDUCT®, one of the nation’s top manufacturers and brands of thermoplastic ductwork. SUPERDUCT® actuated dampers are to be used with air and compatible gaseous media in open air, non-pressurized applications only. They are not for use in pressure systems, with liquids, or with known incompatible chemicals. Always verify chemical compatibility prior to use. 

PVC duct actuated butterfly damper sizes range from 2" to 24" in Iron Pipe Size (IPS) diameter. Large actuated duct dampers are available on request in a range of sizes up to 60" in diameter. The dampers come with belled end socket (standard) or spigot connection options. For installation, a professional quality PVC primer and cement is recommended on duct fittings up to 14" in size. Hot air welding is recommended for duct fittings larger than 14" in size.

PVC duct actuated butterfly dampers are made according to ASTM D1784 standards using professional grade PVC resin to offer a consistent, high purity, high performance fitting. 

• Material Profile: Type I Grade I PVC Cell Class 12454-B. 
• Color: Dark gray. 
• Performance Standards: Meets and/or exceeds ASTM D testing standards for ductwork applications. 
• Pressure: For non-pressurized systems only. 
• Temperature: Approved for up to 140°F (60°C). 
• Sizing Standard: Schedule 40 / IPS thickness standard. 
• Size Options: Range from 2" to 24", with large diameter ductwork up to 60" on request. 
• Connection Options: Belled end socket or spigot end. 

Harrison SUPERDUCT® PVC actuated butterfly dampers offer automation capabilities with outstanding quality, mechanical strength, and resistance to a range of fumes and gaseous substances, making them a trusted option across different applications and workplaces. These SUPERDUCT® dampers combine lightweight design with heavy duty construction for simple installation and a prolonged lifespan that often exceeds conventional metal duct systems.

• PVC Material: Heavy duty thermoplastic with excellent corrosion resistance and durability that will not rust or degrade. 
• Chemical Resistance: Resistant to many acids, alkalis, alcohols and their gasses, fumes, and vapors.  
• Airflow Regulation: Control ventilation conditions, improve energy efficiency, regulate heat loss or gain, and maintain air quality.
• Actuator Ready: Built for setup and use with manual, motorized, or automatic actuators.
• Hard Working: Engineered for long term service and minimal maintenance to keep ductwork systems operating.
• Airtight: Will provide a secure, long lasting seal when properly installed.
• Easy to Install: Lightweight and impact resistant for easy handling and installation. 

Common applications for PVC duct actuated butterfly dampers include HVAC systems, fume hoods, and equipment vents in commercial and industrial buildings, agriculture operations, laboratories, and manufacturing plants that require precise control of air quality, temperature, and the removal of fumes and exhausts. The dampers are often used in applications to handle corrosive gasses and fumes common in wastewater treatment plants, chemical processing facilities, and similar environments. 

Harrison PVC SUPERDUCT® actuated butterfly dampers are a leading choice in quality and performance, trusted by professionals for decades. They are precision engineered to deliver the reliable, long lasting service that ductwork systems require. Manufactured to the highest standards from premium materials, our ductwork pipe supplies are made to exceed requirements. For more information or details on contractor pricing, contact us.