What type of tubing can be used with the John Guest® fittings?

Plastic tube – Polyethylene, nylon and polyurethane conforming to the tolerances shown below. For soft tubing or thin walled tube we recommend the use of tube inserts.

Braided tube – Use of tube to hose stems is essential when using braided tube or hose. The use of clamps to retain braided tube on barbs is recommended.

Metal tube (soft) - Brass, copper or mild steel conforming to the tolerances below.

Metal tube (hard) – We do not recommend super Speedfit® fittings for hard or chrome plated tubes. This includes stainless steel and other polished metal tubes.

It is essential that outside diameters be free from score marks and that the tube be deburred before inserting in the fitting.

Tube Tolerances
Super Speedfit® fittings are offered for tubes with outside diameters to the following tolerances.

Size (inches)

5/32” – 3/16”

1/4” – 1/2”

Tolerance (inches)

+0.001”/-0.003”

+0.001”/-0.004”

Size (mm)

4 mm – 5 mm

6 mm – 22 mm

Tolerance (mm)

+0.05/-0.07

+0.05/-0.10

Article Title:
What type of tubing can be used with the John Guest® fittings?
Article Summary:
Tubing recommendations for John Guest® Super Speedfit® Fittings
Article Date:
1/24/2012
Article ID:
946
2 user(s) found this article useful. Was this article useful to you?
Share

Information disclaimer:

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.