High Pressure Expansion Joints Furnished to MHI


Certain licensed polypropylene processes require expansion joints to handle very high pressures. Senior Flexonics Pathway has accumulated a very large experience base in high pressure hinge and gimbal expansion joints for these critical industrial applications.

The subject expansion joints included ply testable design with the requirement that a specified leak rate must be certified to exist through the bellows while the expansion joints were at hydrostatic test pressure. Senior Flexonics Pathway installs a metal mesh between the bellows plies to insure that a leak path will always exist from one end of a ply testable bellows to the other. The leak path is important to insure that a leak in the inner ply of the bellows can be detected at the testable connection located at the ends of the bellows element.

To find out more about high pressure expansion joints, contact Senior Flexonics Pathway.