PVC Duct Fittings

PVC duct fittings are pipe components specialized for use in ductwork and ventilation systems. They are used within various air handling applications to connect, terminate, regulate, or change the direction of airflow. Duct fittings provide a secure, airtight means to control the flow of air or gaseous media. These fittings are made from thermoplastic polyvinyl chloride (PVC) for durability, corrosion resistance, chemical compatibility, low weight, and ease of installation. PVC duct fittings are used to complete the design and construction of ventilation systems within buildings and for onsite work processes or equipment. Their range of sizes and product types allow installers to effectively route air handling ductwork to the necessary point of release, collection, filtration, or treatment. They are used in ductwork systems for handling clean air, conditioned air, heated air, waste air with dust, particulates or contaminants, as well as compatible gasses, fumes, vapors, and exhausts originating from onsite work activities.

PVC ductwork fittings 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.

Our catalog of PVC ductwork fittings is built to have the fittings needed by contractors, maintenance crews, engineers, and ventilation professionals. PVC duct fitting sizes range from 2″ up to 24″ in diameter. Larger diameter fittings up to 60″ are available on request for many models. Duct fittings are made to Iron Pipe Size (IPS) sizing standard for compatibility with Schedule 40 components or equipment. Connections options vary and are primarily belled end socket style types. 

We offer a full selection of PVC duct fittings. Available types include 45° elbows, 90° elbows, duct tees, duct wyes, rigid and flexible duct couplers, duct caps, PVC pipe hangers, butterfly dampers, blastgates, duct flanges, exhaust hoods, rainskirts, rain caps, and flexible ducts. 

Available Harrison SUPERDUCT® fittings are Type 1 Grade 1 Cell Class 12454-B PVC manufactured to ASTM D 1784 standards in the USA by Harrison Machine and Plastic. The manufacturer has over 50 years experience in producing and providing professional, cost effective, and reliable ductwork. PVC duct fittings have high tensile strength, high modulus of elasticity, low conductivity to heat and electricity, good flammability tolerance, excellent chemical properties, and are resistant to environmental corrosion such as rust. Compared to metal ductwork, PVC duct fittings support a long service life in air handling applications.

• Material Profile: Type 1 Grade I PVC Cell Class 12454-B. 
• Manufacturing: Made in the USA by Harrison Machine and Plastic. 
• Brand: Harrison SUPERDUCT®. 
• Color: Dark gray. 
• Performance Standards: Meets ASTM D1784 and ductwork performance testing standards. 
• 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 ductwork up to 60″ on request. 
• Connection Options: Belled end sockets (primary), sleeve, spigot, flange.

USA made PVC SUPERDUCT fittings are engineered for lasting performance and quality in air handling systems. The fittings have been tested and certified to the top industry standards for ductwork in mechanical and chemical durability, material purity and characteristics, and operational compatibility with air, fumes, exhausts, vapors, dust, and particulates common to ventilation systems.

Applications and uses for PVC duct fittings include residential, commercial, and industrial HVAC systems, chemical process control, fume hoods, fume scrubbers, mitigation systems, manufacturing plants, medical facilities, dust collection and control, particulate removal and treatment, agricultural applications, equipment and operational exhaust management, vapor handling, volatile organic compound (VOC) extraction, and more.

For installation, a professional grade PVC primer and cement are recommended for solvent weld installation on duct fittings up to 14″ in size. Hot air PVC welding is recommended for larger duct fittings above 14″ in size. Proper installation practices will provide a secure, airtight connection that minimizes the risk of leaks or joint failures.

PVC duct fittings offer a robust, reliable, and efficient solution for ductwork systems and projects. They deliver a long service life with excellent performance, material properties, and minimal maintenance requirements for a cost effective, superior alternative to metal ductwork.

• Industry Leading Quality: Harrison PVC SUPERDUCT® fittings, trusted by professionals for decades.
• Comprehensive Selection: From 2″ to 24″ IPS diameter sizes in a full selection of duct fitting types. 
• Certified Safety: Designed, tested, and certified to ductwork codes and standards.
• Temperature Resilience: Rated to handle internal air temperatures from below 0°F up to 140°F, suitable for a wide range of applications.
• Chemical and Corrosion Resistance: Engineered to withstand various gaseous media and environmental conditions for long term service and durability.
• Ease of Installation: Lightweight, easy to handle design for easy installation.
• Reliability: Long lasting, airtight connections and service when correctly installed.

Don’t settle for less. Build with SUPERDUCT® for strength and reliability, and get projects done. Elevate your HVAC, air handling, and chemical processing systems with the trusted performance of Harrison PVC duct fittings. Precision engineered to handle the most demanding environments, versatile for use across applications, and made to the highest standards and materials, our ventilation fittings are built to exceed project requirements. Our ductwork supplies are trusted by contractors, maintenance crews, engineers, industry experts, and DIY hobbyists. Purchase options vary by product and size and can include single, box, and pallet quantities. Contractor pricing may be available for qualifying professionals and bulk quantity orders. For more information, detailed specifications, or other questions, contact us.