Compression fittings must be used with hard or semi-rigid tubing. Soft tubing is too soft to create a good seal with compression fittings. Barbed fittings have to be used with soft, flexible tubing. Using hard tubing with barbs will cause longitudinal stress cracks in the tubing.
Hard tubing includes Nylon, Polypropylene, HDPE, LDPE, LLDPE, Kynar, and Chemflour. Soft tubing includes flexible PVC (vinyl), silicone, most Tygon tubing, polyurethane, and latex.
There is an insert available for the Jaco and Parker Fast & Tite tube fittings that you can insert into some of the soft tubing, which will make it rigid enough to use with the compression fittings. When a barbed fitting is used for an application that involves pressure, a clamp must be used to clamp the tubing to the fitting.
Title: What tubing do I use with compression fittings and what tubing do I use with barbed fittings?
Description: General infortmation on the use of barbed and compression style fittings.
Last Edited: 1/20/2023
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.