We manufactures Rectangular Expansion Joints to absorb thermal movements and vibration in either square or rectangular ducting in applications such as turbine condensers. Most Rectangular Expansion Joints are custom designed for specific design and service conditions depending on the application.

Our Rectangular Expansion Joints are made “V” shape convolution profile and available in single or double miter and camera corner configurations. “U” shape convolution profile with rounded corner configuration is also available in limited sizes.

Rectangular metal pipe expansion joints have a variety of applications in the power, petrochemical, refining, chemical, and steel industries. Like circular pipe expansion joints, rectangular pipe expansion joints absorb three types of movement: axial, lateral and angular. For the purpose of designing rectangular bellows, it is critical to know in which direction the lateral and angular movements will occur, i.e. parallel to the long and/or short side of the bellows. Unlike circular bellows where the pressure stress is a circumferential membrane (hoop) stress, the rectangular bellows must be designed for longitudinal (beam) bending stresses.