Fabric expansion joints

These expansion joints are constructed from 1 or more layers of different basic fabrics. Depending on density requirements and at relatively low temperatures, coated fabrics can be used in a single layer. At higher temperatures, several layers of uncoated fabrics are used to reduce the temperature towards the outside.
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Ceramic or glass fiber insulation for large temperature reduction on the medium side.
Silicate or glass fabric to protect the insulation material.
To achieve flue gas tightness, PTFE, ALU or stainless steel foil is used. This is usually located just before the outer tissue layer.
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In a multi-layer design, a covered fabric is usually used as the outer layer to protect against weather influences or damage on the outside. As the first layer in contact with the medium, a stainless steel wire mesh can be used as shape stabilization and dust protection.