This content requires Adobe Flash Player version
or later.
Either you do not have Adobe Flash Player installed,
or your version is too old,
or there is a problem with your Flash installation and we were unable to detect it.
98 Module 8 • Water pipe systems (up to 50 mm diameter) • Briefly describe how pipe cutters and reamers are used.
• Briefly describe the materials used to seal threaded pipes, for example, copper jointing compound, sisal string, teflon and PVC tape.
8.1 Pipe sizes and terms Figure 8.1 shows a pipe screwed into a joint. If you measured the pipe diameter on the outside, just to the right of the thread, you would get the outside diameter. Half the difference between the outside diameter and the inside diameter is the pipe thickness.
fitting
reamed chamfer
60° Figure 8.1
8.2 Pipe fittings and their applications Fitting
90º elbow
pipe
Description
Te 90º elbow is used to join two pipes at right angles to each other.
Pipe union
A pipe union is used to join two pipes where both are fixed at the other end and cannot be rotated.
Cap
A cap is used to block off flow in a pipe line with external thread.