Flexible Connections have an extensive range of high-temperature fabric seals to cover a variety of applications, from simple spigot connectors to ductwork seals complete with flanges and insulation. We can obtain movements in all planes along with the attenuation of both noise and vibration.
The principle of high-temperature seals or expansion joints is to utilise the heat resistance capabilities of glass cloths and ceramics. At the higher end of the temperature scale, insulation bolsters are incorporated into the design, produced with ceramic glass cloth or needlefelt enclosed in a woven glass cloth base layer with steel flow-liners; these remove the main seal from the direct flow, ensuring maximum durability.
With temperature ratings up to 600°c, most circumstances are catered for. Each standard seal is constructed from graphite-impregnated woven glass cloth for temperature resistance, PTFE Foil as a chemical barrier, and silicone-coated woven glass cloth for a weatherproof outer cover to assist with pressure containment. Other materials available include a variety of rubber and aluminium-coated glass cloths, Kevlar and steel-reinforced fabrics.
Due to the diverse range of ductwork sizes and operating conditions, each design is bespoke, including connection arrangements. Spigot-type connectors can be supplied with optional stainless steel clamping bands.