Expansion joints are essential elements that protect pipe infrastructure from the detrimental effects of thermal movement. However, given the complexity of a pipe system, certain components can enhance infrastructure better than others.
When it comes to expansion joints, there are two main types: cylindrical and rectangular. While each type contributes its fair share of benefits and drawbacks, knowing their attributes and when to install them in pipe infrastructure is imperative.
Continue reading below to learn when to use cylindrical versus rectangular expansion joints.
Cylindrical Expansion Joints
Cylindrical expansion joints exist in pipe infrastructure that experiences significant movement and requires devices to support flexibility. These elements consist of metal expansion bellows, tie rods, and connectors at each end.
Also known as compensators, cylindrical expansion joints consist of a multi-ply design that helps promote flexibility and stability during thermal expansion. Their design is pressure-tight and incorporates welded outer and inner stainless-steel cylinders inside an open, spiral cylinder.
Rectangular Expansion Joints
Generally used in industrial settings, rectangular expansion joints are a necessity in applications where there is less movement and flexibility. Specifically, you can find rectangular expansion joints in boiler and HVAC systems since they allow infrastructure to transport fumes to the chimney or steam from a turbine to a condenser.
Rectangular metal expansion joints have convolutions suitable for low and medium pressures, as well as full vacuum services. Components don’t typically restrain pressure thrust, so it helps to utilize anchors and pipe alignment guides to stabilize pipe systems.
Moving Forward
Maintaining pipe infrastructure is necessary to keep systems functional and efficient. Furthermore, knowing when to use cylindrical versus rectangular expansion joints helps determine what elements are appropriate for your project so you can install or service a pipeline more efficiently.
Triad Bellows is a trusted manufacturer and supplier of metal expansion joints and bellows. Our custom components consist of a premium-quality design and stainless steel to help support your projects in the long term. To get started, head over to our catalog page for a review of our complete selection!
