Single Unrestrained Metal Expansion Joint
Single Unrestrained Metal Expansion Joint Description
The single unrestrained metal expansion joint (SSO, SFO and SGO) is mainly intended to absorb movements of axial expansion, both thermal and mechanical. In addition, to a lesser extent, it can absorb angular and lateral movements.
The single unrestrained metal expansion joint is composed of a single bellow of several U-shaped waves. These waves are made by one or more metal sheets longitudinally welded and hydraulically or mechanically-shaped.
Because of its configuration, the designer must bear in mind that these models transmit pressure stresses to the fixed points and guides of the piping system.
Single Unrestrained Metal Expansion Joints Types
SSO EXPANSION JOINT
Axial metal expansion joint with welding ends.
SFO EXPANSION JOINT
Axial metal expansion joint with fixed flanges.
Single Unrestrained Metal Expansion Joint Technical Data Sheet
From 0,5 barg to 40 barg.
From DN25 to DN5500.
Other dimmensions under request
From 10 ºC to 800 ºC.
The usual materials are stainless steel 321, 309S and 316L.
Other materials: Inconel 600, Inconel 625, Incoloy 800, Incoloy 800H, Hastelloy C-276.
The flanges will be supplied according to the requirements of each project.
The ends to be welded can be adjusted to the customer’s needs.
Inner or outer sleeve
As an option, an inner and / or outer sleeve can be installed.
Single Unrestrained Metal Expansion Joint Applications
Example of using a simple unrestrained metal expansion joint to absorb axial line expansion.
Typical application of a single unrestrained metal expansion joint. Axial movement combined with lateral deflection is absorbed.
T connection where 3 single unrestrained metal expansion joints have been used to absorb axial line movement.
Engineering, Design and Manufacturing of Metal Expansion Joints
Our Technical Staff shall be delighted to provide you with detailed information.