Which type of cast iron pipe joint can absorb vibrations without leakage up to 5 degrees?

The type of cast iron pipe joint that can absorb vibrations without leakage up to 5 degrees is the compression joint. This joint is designed to provide a flexible connection between two sections of pipe, allowing for a certain degree of movement. This flexibility is essential in applications where pipes may experience vibrations due to factors like water flow, equipment operation, or external environmental conditions.

What sets the compression joint apart is its ability to maintain a watertight seal even when the angles between the pipes change slightly. The compression mechanism allows the joint to expand or contract as needed, accommodating the vibrations or misalignments while preventing leakage. This property makes compression joints particularly effective in both residential and industrial plumbing systems where movement and vibration are common.

In contrast to other joint types, like the flanged joint, bell and spigot joint, or coupling joint, the compression joint's ability to absorb movement without compromising its seal is what makes it especially suitable for dynamic environments where structural integrity is critical.