1

Fittings

Threaded joint fittings (con’t)• Cap – used to close end of a pipe• Plug/capped nipple – used to close an opening in a piece of

equipment.

2

Fittings

Welded connections Fittings are of steel and are of 2 types, butt weld and socket weld.

The butt weld fittings are of the same dimension as the pipe, and the socket weld fittings have enlarged ends similar to threaded to threaded fittings, but the pipe slips into place and is fillet welded.welded.

Fittings are similar to equivalent threaded type. Fittings are similar to equivalent threaded type.

3

Fittings

Bell and spigot connections Fittings Fittings [of the same materials as the pipe] are similar in type and

function to those for threaded pipe.

4

Fittings

Compression fittings• Compression fittings are widely used for small sized tubing at both

low and high pressure. These are convenient and efficient, particularly if the connection is to be broken.

5

Flanged Joints

Flanged joints are the most common method for joining pipe in sizes 2 inches and above. The use of flanges allows for making the piping up in sections that are easy to handle and also allows access for cleaning, draining, etc.

1. Socket welding flanges 2. Slip on welding flanges 3. Threaded flanges 4. Welding neck flanges 5. Lap joint flanges