When you install an expansion joint in your piping system, you are taking steps to improve the lifespan of your operations. These joints feature components that are key to their operations, including metal bellows, which absorb different types of motion. Engineers can benefit from gaining an understanding of the various metal bellow movement capabilities. Read on to learn about each of them.
Axial
One type of movement that metal bellows absorb is axial, which involves the bellows compressing or extending along its centerline. This type of motion compensates for linear expansion or contraction within a piping system.
Pipes frequently shift under varying temperatures, and the bellows can handle such adjustments efficiently. However, it is critical to correctly anchor and guide the pipe to ensure the bellows will be effective.
Angular
Another example of the various metal bellow movement capabilities is angular movement, which gives the bellows the appearance that it is bending. When this happens, the bellows’ longitudinal axis experiences a displacement.
In addition, the bellows’ inner convolutions will experience compression, while its outer ones will stay elongated. Even small angular displacements can create stress in rigid piping systems, so bellows designed for this motion type stabilize connections and prevent potential failures. Angular bellows accommodate multiple install scenarios, adapting to systems that require flexibility under changing orientations.
Lateral
Unlike the linear nature of axial movement, lateral motion refers to movement perpendicular to the bellows’ centerline. This type of motion proves essential when pipelines shift sideways due to environmental influences or operational demands.
Metal bellows that handle lateral movement distribute forces effectively and reduce stress on surrounding components. Such bellows often feature dual configurations to balance the movement across broader sections.
Torsional
One last type of movement is torsional motion, which involves twisting forces along the axis of the bellow. This movement type presents unique challenges, as manufacturers do not build typical bellows for rotational stresses.
When systems introduce torsional motion, specialized designs can protect the integrity of the bellows. Preventing such forces often requires these adjustments, which may include adding hinges.
Triad Bellows’ extensive experience as a bellows manufacturer has allowed it to provide tailor-made solutions for its clients in various industries. Our employees can create bellows that will lessen the stress on your pipelines and help them last longer.
