Discover our list of products that hold an Extra Strong ( XS ) Pressure Rating. Get pipe fittings and more that can withstand high pressure environments.

What does the term XS mean when it comes to pipe fittings?

The XS pressure rating on a pipe fitting typically refers to a “Extra Strong” designation, which is used to describe the wall thickness of the pipe or fitting.

In the context of pipe fittings, especially for materials like steel or stainless steel, “XS” indicates that the fitting has an extra strong wall thickness compared to standard or regular schedule pipes. It’s often used for applications where high pressure is involved, as the thicker walls are more capable of withstanding higher internal pressures.

This designation can be found alongside different pipe schedules (like Schedule 40, Schedule 80, etc.) and indicates that the fitting can handle higher pressure levels than a standard pipe fitting with a thinner wall.

So, when you see a pipe fitting marked as “XS,” you can generally expect it to have a higher pressure rating compared to others like Schedule 40. However, the exact pressure rating would still depend on factors like the material of the fitting, the pipe diameter, and the operating conditions.