What is pipe fitting size?

What is pipe fitting size?

They’re sized by the nominal size of the pipe, or the inner diameter. If you buy a 1/2 inch thread and measure the diameter, it will measure over 1 inch because it’s designed to have a nominal pipe fitting. The female fitting should be sized just as large as the male fitting to get the right fit.

Threaded pipe fittings refer to pipe fittings connect with pipes by internal or external threads and their dimensions are no more than 4 inch in most cases. Thread connection is the oldest way that we still use today. Most of forged threaded fittings are specified in ASME B16.

How do you size a pipe?

To find it, measure around the circumference of the pipe with flexible measuring tape. Divide the circumference by pi, or about 3.14159. For example, if the circumference is 12.57 inches (319 mm), you would divide by pi, and get an outside diameter of about 4 inches (100 mm).

What is the outside diameter of 1/2 copper pipe?

Nominal Pipe Size inches O.D. I.D.
Type
1/2 0.625 0.545
5/8 0.750 0.666
3/4 0.875 0.785

How much length do pipe fittings add?

The distance between the fittings and the extra reach must be included in the length. If you are using 1/2 inch pipe, add 7/16 inch per end and 1/2 inch per end.

How far does a 1/2 pipe thread into a fitting?

If you are using 1/2-inch pipe, add 7/16 inch per end; and add 1/2 inch per end for 3/4-inch pipe. Therefore if you plan to use 3/4-inch pipe to join two fittings 36 inches apart, you would need a pipe 37 inches long (adding 1/2 inch on either end to allow for penetration into the fittings).

What screwed fittings?

Screwed fittings have female threads (threads inside the fitting) and socket weld fittings have an internal socket that prevents a fitting make up assembly. From: A Practical Guide to Piping and Valves for the Oil and Gas Industry, 2021.