< Back to Articles
Why do threaded fittings have lower pressure ratings then socket fittings?
When a pipe or fitting is threaded the wall thickness is decreased. Also, most plastics are notch sensitive, which basically means it will have a greater tendency to break in places that have been notched. When a pipe or fitting is threaded (notched) it will lose a significant percent of its strength.
See link below for pressure ratings.
Title: Why do threaded fittings have lower pressure ratings then socket fittings?
Description: Threaded connections have lower pressure ratings than socket connections.
Last Edited: 9/18/2013
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.