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CPVC Duct Fittings

(225 products)

CPVC duct is useful for applications requiring non-corrosive material that can handle temperatures up to 200 degrees Fahrenheit. CPVC duct is also known for its fire resistant properties – making it ideal in high-risk laboratory or industrial situations. When using CPVC duct and fittings, be sure all parts are of the same CPVC material makeup and wall thickness. Proper support and hanging is required to ensure safety. Can't find the fittings you need? Speak to our product experts today. They have decades of experience in the field and are ready to assist you in any way possible.

Are you ready to buy or need assistance selecting the correct products? If so, speak with one of our experienced product specialists by calling (866) 777-8001 or complete our easy to use Price Quote Form!

CPVC Duct Fittings Types

Duct fittings come in several different types and a range of sizes. Like standard CPVC pipe and fitting systems, CPVC duct has its own line of fittings. The fittings are combined with duct pipe to create complete exhaust, fume, or drainage systems. Duct pipe and fittings have a fairly thin wall and are very lightweight. Engineers and contractors often choose CPVC for their duct due to its ability to handle higher temperatures than most plastics.

The various CPVC duct fitting styles available all serve a different purpose in creating a duct system. For instance: couplings join two pieces of duct pipe, elbows join duct at an angle to bend the line in another direction, tees join three pieces of duct for a duct pipe that needs to split off or where two duct lines converge. There are numerous types of fittings, some of which are specifically designed for duct applications. Rain caps are one of these specialized types. Blastgates are also unique to duct lines and are not generally used a standard pipe line. Unlike CPVC pipe materials, duct is designed for exhaust, fume and drainage uses, not pressurized liquids.

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CPVC duct fittings are used to build complete exhaust, fume, and ventilation systems in commercial and industrial environments. We carry over 225 CPVC duct fittings from Harrison and Spears in sizes from 2" to 24", all manufactured from Corzan CPVC material rated for service temperatures up to 200°F. 

Why Choose CPVC for Ductwork?

CPVC outperforms standard PVC and metal ductwork in demanding environments. It is rated for continuous temperatures up to 200°F, compared to 140°F for standard PVC, and offers excellent resistance to corrosive fumes, acids, bases, and chemical vapors. CPVC also has strong fire resistance properties, meeting ASTM E-84 flame spread and smoke developed ratings that make it acceptable for use in air plenums. The material is lightweight compared to metal duct, which reduces support requirements and simplifies installation. CPVC will not rust, corrode, or degrade from chemical exposure, resulting in a longer and more cost-effective service life. All of our CPVC duct fittings are manufactured from Type IV, Grade 1 Corzan CPVC within Cell Class 23447 per ASTM D1784 standards.

Types of CPVC Duct Fittings We Carry

  • 45° and 90° Elbows for changing direction in a duct run
  • Tees for splitting or merging duct lines, available in equal and reducing configurations
  • Wyes, True Wyes, and Reducing Wyes for angled branch connections
  • Couplings and Reducer Couplings for joining straight sections of duct pipe, including transitions between sizes
  • Caps for terminating the end of a duct run
  • Socket Flanges and Blind Flanges for connecting duct to equipment or sealing off a flanged opening
  • Butterfly Dampers for regulating airflow within the system
  • Blastgates for controlling vacuum suction at individual machine or collection points
  • Rain Caps (Style A and Style B) for protecting outdoor exhaust terminations from weather
  • Rainskirts for additional weather protection at outdoor penetrations
  • Flex Hose Adapters (Socket and Spigot) for connecting rigid CPVC duct to flexible hose

Sizes and Installation

CPVC duct fittings are available in IPS sizes from 2" through 24". These are thin-wall fittings designed specifically for duct applications and are not interchangeable with Schedule 40 or Schedule 80 CPVC fittings. All duct components in a system should be of the same CPVC material and wall thickness.

Fittings connect via socket ends using CPVC solvent cement welding. For systems above 14" in diameter, hot air welding is the recommended joining method. Proper support and hanging is required for all installations.

Common Applications

  • Chemical fume exhaust and scrubber systems
  • Industrial HVAC and ventilation
  • Laboratory and cleanroom exhaust
  • Manufacturing plant air handling
  • Fume hood connections
  • Dust and vapor collection systems

Why Buy from Commercial Industrial Supply?

We stock Harrison and Spears CPVC duct fittings and can supply complete duct systems including pipe, fittings, and accessories. Our product specialists have decades of experience with CPVC duct systems and can help you select the right components for your project. We offer wholesale pricing for contractors and provide quotes within one business day.

Are you ready to buy or need assistance selecting the correct products? If so, speak with one of our experienced product specialists by calling (866) 777-8001 or complete our easy to use Price Quote Form!

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