Description The Mi-Flex FastFix-Screw Adaptor to SW – Ø150 is a precision-engineered stainless steel connector designed for quick and reliable installation. As part of the Fast-Fix Screw range, it allows for a secure connection between a rigid single-wall connecting flue system and a Mi-Flex flexible flue liner of the same diameter. Its screw-fit design ensures a strong, sealed joint that is easy to fit and remove for maintenance. Specifications System Fast-Fix Screw MF21 Material 316L Stainless Steel Material Thickness 0.6mm Finish Natural Stainless Steel Diameter Ø150mm Designation BSEN 1856-2 T600 N1 W V2 L50012 G Maximum Operating Temperature 600°C Fuel Compatibility Wood, Oil, Gas, Smokeless Coal Installation Guidance The adaptor should be fitted inside the confines of the existing masonry chimney, ensuring that no flexible liner is exposed. It must be secured firmly to both the connecting flue below and the flexible liner above using suitable high-temperature sealants such as fire cement, ceramic rope, or high-temperature tape. This ensures a completely gas-tight connection in accordance with Building Regulations Document J. Maintenance Regular inspection and sweeping of the chimney system are essential to maintain safety and performance. Cleaning should be performed by a competent professional at least once a year — or twice for solid fuel applications. Avoid the use of chemical cleaners or mild steel tools when maintaining stainless steel chimneys. Typical Applications Solid fuel stoves and wood burners Oil and gas heating appliances Appliances requiring a T600-rated flue transition Safety & Compliance This adaptor complies with BS EN 1856-2 standards and should only be installed as part of a fully enclosed masonry chimney system. Use by qualified installers is recommended to ensure compliance with UK building and safety regulations.
