Non-metallic expansion joints are flexible connectors designed to provide stress relief and seal in gaseous media in ducting systems.
They are fabricated from a wide variety of non-metallic materials, including synthetic elastomers, fabrics, insulation materials and fluoroplastics, depending on the designs.
| Expansion Joint Capabilities & Advantages Expansion joints provide flexibility in duct work and are used to allow for 4 main situations: - expansion or contraction of the duct due to temperature - isolation of components to minimize the effects of vibration - movement of components during process operations. - installation or removal of large components and erection Advantages of non-metallic expansion joints include - Large movements in a short length - Ability to absorb simultaneous movements easily in more - Very low forces required to move the expansion joint - Corrosion Resistant Materials of Construction - Noise and Vibration Resistance - Ease of Installation - Minimal Replacement Cost - Design Freedom - Thermal Breaks |
◆ Single Layer Construction An expansion joint formed of one consolidated layer, often constructed from elastomers and reinforcement materials or fluoroplastics and reinforcement materials.
| ◆ Multi-Layer Construction An expansion joint in which the various plies are of different materials which are not integrally bonded together
|
◆ Belt-Type Expansion Joint Configuration An expansion joint in which the flexible element |
|
◆ Flanged-Type Expansion Joint Configuration An expansion joint in which the flexible element has flanges formed at right angles |
|
◆ Expansion Joint Clamping Configuration An expansion joint that utilizes both belt type and flanged configurations |
|
