Square plug is
another type of pipe fitting used in various applications. Square plugs are
designed to be fit into holes or cavities. They are used for the ends of
shafts, tubes, pipes, fittings, connectors, screws, bars, or other shapes. Pipe
plugs are available in various shapes and materials. They also come in a
variety of different cross sections. The most popular category is the square
Materials used in the making of square plugs are as follows:
Cast iron etc.
Features of square plugs:
Some of the common features of square plugs are as follows:
square plugs have a female thread.
Tapered: The thread
of the square plug can be straight or tapered (NPT). The tapered thread
provides a snug fit. Tapered square plugs are versatile. They can be used
for straight tubes and bars, male and female NPT threads, and male
square plugs are used in moderate pressure applications, like condenser
and heat exchanger tubes.
with with lift or pull tabs which allow easy removal.
plugs with ribs are on the mating part of the plug which help to
provide a secure fit inside a tube.