What is the purpose of a pipe hanger clamp?

The primary purpose of a pipe hanger clamp is to secure pipes while allowing for thermal expansion and contraction. In piping systems, temperature changes can cause the materials to expand and shrink. If pipes are rigidly fixed without allowance for this movement, it can lead to significant stress on the pipe and its joints, possibly resulting in damage or failure.

Pipe hanger clamps are specifically designed to provide support for the pipes while also accommodating this expansion and contraction. They often feature a design that permits some movement as temperatures change, ensuring that the integrity of the piping system is maintained while still securely holding the pipes in place.

The other options do not accurately reflect the function of a pipe hanger clamp. Increasing pressure in pipes involves different engineering considerations, sealing joints is the role of pipe fittings or gaskets, and facilitating painting pertains to aesthetics rather than functional support of the piping system.