PVC Duct Couplings

PVC duct couplings are pipe connection fittings used to seamlessly join two sections of PVC ductwork. Duct couplers are used to create secure, airtight joints to complete ductwork, HVAC systems, and exhaust networks. PVC duct couplings are used in the design, installation, and repair of ventilation systems across residential, commercial, and industrial properties and work cases. They are manufactured from high quality polyvinyl chloride (PVC), a robust thermoplastic that provides durability, corrosion resistance, and a long service life. Due to their PVC construction, the couplings are suitable for many ductwork applications that handle fumes, vapors, exhausts, gaseous media, airborne dust, contaminants, or particulates. PVC duct couplings feature sleeve type socket ends that work by sliding over the ends of two plain end duct pipes.

These are USA made PVC duct couplings built by Harrison Machine and Plastic under the trade name SUPERDUCT®, one of the nation’s top manufacturers and brands of thermoplastic ductwork. SUPERDUCT® couplings 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 coupling sizes range from 2″ to 24″ in Iron Pipe Size (IPS) diameter. Duct pipe couplers come in reducer couplings, rolled reducer couplings, flex hose adapters, and sleeved couplings. Duct reducer coupler sizes range from 3″ x 2″ up to 18″ x 16″. Rolled reducer coupler sizes range from 6″ x 4″ up to 24″ x 20″. For installation, professional PVC primer and solvent cement are recommended for duct couplings up to 14" in size. Hot air welding is recommended for duct couplings larger than 14″ in size.

PVC duct couplings are made from premium industrial grade PVC material and are precision engineered to meet ASTM D1784 standards and ASTM testing requirements for professional ductwork. This ensures high purity, product consistency, and reliable performance for extended service across ventilation applications and building structures.

• 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″ in diameter. 
• Connection Options: Sleeve socket ends.

Harrison SUPERDUCT® PVC duct couplings allow the completion of ductwork ventilation systems while offering the durability and corrosion resistance to manage various industrial fumes, exhausts, and gasses. 

• 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.
• Secure Joints: Made for reliable, long term duct pipe connections. 
• Multiple Options: Available in several distinct product types to meet project needs. 
• 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 couplings include HVAC systems, industrial and institutional corrosive fume handling systems, and other work settings where air or exhaust must be transported through a duct system. Additional applications include commercial and residential ventilation, chemical processing facilities, laboratories and research projects, and manufacturing plants to complete the installation of reliable, airtight, and effective ductwork systems.

Harrison PVC SUPERDUCT® couplings 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.