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CPVC Duct Butterfly Damper

Butterfly dampers are common in duct and HVAC systems. They usually consist of two “wings” or blades of a disk that hinge at the middle and open up inside of a piece of duct pipe allowing flow of air or exhaust. When not forced open by air, the blades fall closed, shutting off the duct opening and preventing air flow in the opposite direction (similar to a check valve). Butterfly dampers are often found near an exhaust fan or intake and are used to prevent backdraft. They can be found in all sorts of applications, from residential to industrial.

Our CPVC duct butterfly dampers are designed for use with other CPVC duct materials. They feature belled end for easy solvent cement or hot air welding installation. Solvent cement is generally used for smaller duct sizes, while larger sizes require hot air welding for secure joints. Our line of CPVC butterfly dampers is available in 2 inch through 24 inch sizes.

Why CPVC duct? CPVC is a thermoplastic that is commonly used for duct and piping systems. It is moldable, so it can be made into all sorts of shapes and designs. It is also extremely durable and strong. Unlike metals, CPVC does not corrode or rust. It is also excellent at handling a host of chemicals. CPVC duct in particular is chosen for its light weight and ease of use. It is often found in institutional applications where corrosive media is an issue.

CPVC is also lauded for its ability to handle relatively high temperatures. It has a maximum temperature rating of 200 degrees Fahrenheit (compared to 140F max.of PVC). Our CPVC duct pipe and fittings are readily available and are made in a light gray color. Most of our fittings feature a belled end for easy socket installation. Generally duct pipe and fittings of the same size are used together to create a complete exhaust, fume, or drainage system.

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  1. 2" CPVC Duct Butterfly Damper 1834-BD-02

    2" CPVC Duct Butterfly Damper 1834-BD-02

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  2. 3" CPVC Duct Butterfly Damper 1834-BD-03

    3" CPVC Duct Butterfly Damper 1834-BD-03

    3 inch CPVC Duct Butterfly Damper 1834-BD-03 Learn More
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  3. 4" CPVC Duct Butterfly Damper 1834-BD-04

    4" CPVC Duct Butterfly Damper 1834-BD-04

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  4. 6" CPVC Duct Butterfly Damper 1834-BD-06

    6" CPVC Duct Butterfly Damper 1834-BD-06

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  5. 8" CPVC Duct Butterfly Damper 1834-BD-08

    8" CPVC Duct Butterfly Damper 1834-BD-08

    8 inch CPVC Duct Butterfly Damper 1834-BD-08 Learn More
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