If you are trying to expand your PVC knowledge, you can use this blog post as a pipe fitting study guide! Cross fittings come with three inlets and an outlet or three outlets and an inlet. However, when dealing with older homes, you might encounter a […] Chlorinated Polyvinyl Chloride is a plastic product designed for drinking water at temperatures up to 180 degrees (where code permits), and can generally withstand higher temperatures than standard PVC. "S" refers to slip fittings, particularly socket fittings. This pipe fittings guide will outline all the major types of PVC fittings as well as how and why to use them. These fittings are used in plumbing to manipulate the conveyance of water, gas, or liquid waste in domestic or commercial environments, within a system of pipes or tubes. If you come across a different schedule number than the typical 40 or 80, know that the higher the number, the thicker the pipe wall. The CPVC fittings we offer will not glue on PVC schedule 40 pipe. Schedule 40 PVC pipes have thinner walls than their schedule 80 counterparts. A fitting or adapter is used in pipe math to connect straight sections of lick or tube, adapt to different sizes or shapes, and for other purposes such as regulating (or measuring) fluid flow. Two main types of PVC pipe exist: schedule 40 and schedule 80. Various types of pipe fittings are available in plumbing system for different purposes and functions. Because they are the connecting point for four pipes, they are under more stress than other types of fittings and typically built tougher than other fittings. To tackle a do-it-yourself plumbing project, you need to know how to recognize different types of pipes. The picture to the right shows a 1" Van Stone slip flange with a slip end that fits straight onto PVC pipe or a spigot fitting. The most common pipes used today are copper, PVC, or ABS. A cross fitting has openings on all four of its ends and can connect four pipes. SSS, SST, SS, ST, etc. A pipe fitting is used in plumbing system to join multiple pipes of same size or different sizes, to regulate the flow or to measure the flow. Recognizing the different types of pipes within your house is vital to knowing the right repair technique. The difference lies in the thickness of the pipe wall. Compatibility and general pipe fitting knowledge can be overwhelming to someone who is new to the world of PVC! The abbreviations above are just four of the many combinations of "S" and "T" that can be used for PVC fittings.