The primary limitation of PVC material is the recommended environmental temperature limit of 140° F (60°C). This limit is not only a structural strength limitation but also a corrosion resistance limitation. Both can decrease rapidly as the temperature increases.
Based on laboratory testing results, our PVC duct thru 16”, does not require reinforcement and are recommended for round duct systems operating at temperatures up to 100° F with internal static pressure of 10” W.G. (positive) and 2” W.G. (negative) thru 10 W.G. (negative).
Testing performed at 120° F indicates that the instantaneous collapsing pressure does not change significantly, however there is insufficient test data at this temperature.
Although Type I PVC can be satisfactorily used for many applications at temperatures of up to 140° F, its strength and creep characteristics are altered.
CPVC shall carry a maximum operating temperature of 200° F and has the same self-extinguishing and low conductivity features as PVC.
Title: What is the temperature rating for PVC Duct?
Description: Temperature Applications guidelines for PVC duct.
Last Edited: 9/19/2013
The information contained in this article is for general information purposes only. The information is provided by
United States Plastic Corp. and while we endeavor to keep the information up to date and correct, we make no representations or
warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with
respect to the website or the information, products, services, or related graphics contained on the website for any purpose.
Any reliance you place on such information is therefore strictly at your own risk.
In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss
or damage, or any loss or damage whatsoever arising from loss of materials, time or profits arising out of,
or in connection with, the use of this information.