Metal Expansion Joints

Rectangular

MRU, MRW & MRV Series

Regardless of accessories, such as liners and covers, these models absorb all of the movements in any one length of piping but it is mainly used to absorb axial movements.

They do not restrain pressure thrust so adequate anchors and guides must be provided and they can be used only in piping systems that incorporate correctly designed anchors and pipe alignment guides.

MRU
Rectangular expansion joint with U-shaped convolutions and round corner

One or more convolutions for low and medium pressures and full vacuum services. The connection elements are available either with flanges or welding ends.

MRW
Rectangular expansion joint with V-shaped convolutions and camera corner.

This model is characterized by the shape of its corner camera type and the V-shaped convolution. It is very flexible and used in low pressure and vacuum conditions systems. The connection elements are available either with flanges or welding ends.

MRV
Rectangular expansion joint with V-shaped convolutions and miter corner.

This model is characterized by the shape of its miter type corner and its V-shaped convolution. The corner can be either single or double. The connection elements are available either with flanges or welding ends.

Features

  • Rectangular
  • MRU
  • MRW
  • MRV
Pressure Thrust Restrain
Movements
Axial
Lateral
Single-plane
Lateral movements may be absorbed with a twin bellows design
Multi-plane
Lateral movements may be absorbed with a twin bellows design
Angular
Single-plane
Some angular movement can be absorbed providing a specific design
Multi-plane
Some angular movement can be absorbed providing a specific design
 
Lateral movements may be absorbed with a twin bellows design
Lateral movements may be absorbed with a twin bellows design
Some angular movement can be absorbed providing a specific design
Some angular movement can be absorbed providing a specific design
 

Must be properly guided

Requires main and directional anchors