How do you thread pipe?

Answer 1

With a stock and dies and a pipe vice or a threading machine such as a ridgid 300 or 400 or a 12 R or a 65 R depending on the pipe diameter and do not forget the oiler One can always use an Armstrong stock

There are many ways to thread pipe the most popular way is by thread dies of standard pipe but many other ways by using a lathe or cnc machines.

When threading pipe of usually 1/2 - 2" standard pipe threads you must use the right threading oil because other different oils will damage your dies so if you are renting or borrowing a threading machine please make sure you have the right threading oil and the more oil you use while threading the pipe the longer your dies will last.

Answer 2

Simply wrap the tape around the threads. It is very stretchy and will hug the threads. Wrap the tape at least 1 and a quarter times around so it overlaps. You don't have to cut it, simply pull until it breaks. It helps lubricate the threads to make screwing in the new piece easier and provides additional sealing ability to prevent leakes. You can also buy silicone paste to 'paint' on the threads that will do the same thing.