Metal bellows expansion joints are joints that act as a guard against mechanical forces such as pressure thrust, thermal expansion, tremors, pressure surges, and others. These joints are placed in piping and duct systems suction and discharge of pumps and also along with valves to facilitate easy removal as dismantling joints
Metal pipe expansion joints have come in many forms of metals. These metal joints include premium nickel alloy steels and all varieties of stainless steels. Any pipe that connects two separate locations is vulnerable to a variety of actions, all of which put pressure on the pipe. Some of the pressures we have mentioned below:
Internal or external pressure in high temperature.
The weight of the pipe and the parts that it supports
Movement of pipe sections caused by external constraints
Thermal expansion.
