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TWPro - Structural Locking Band - 125 Ø (2-125-054)

The TWPro Structural Locking Band - 125Ø by National Flues is a premium flue stability system designed for both solid fuel and gas/oil appliance installations. This locking band, often referred to as a chimney locking band, offers unparalleled reliability and safety. Enhance your chimney installation with this certified and robust component, ensuring optimum performance for woodstoves, gas coal effect fires, and more.
£32.99
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At a Glance

    Secure connection for unsupported lengths up to 2.9 metres
    Dual-layer stainless steel construction (304 outer, 316 inner)
    Complies with HETAS and CE standards
    Densely packed rockwool insulation (200kg/m³)
    Replaces standard locking bands for enhanced stability

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The TWPro Structural Locking Band with 125mm Ø diameter is engineered for superior stability when dealing with solid fuel and gas/oil appliances, such as woodstoves and gas coal effect fires. It is crucial for installations where an unsupported length of up to 2.9 meters is necessary. Crafted to replace the standard locking band, it ensures secure and reliable connections above and below the final wall support.

Constructed with both an outer skin of 304 grade stainless steel and an inner skin of 316 grade stainless steel, each layer boasts 0.4mm thickness. The insulation comprises densely packed rockwool, measuring 200kg/m³, and all parts are expertly welded. Maintaining a 50mm distance from combustibles like wood or plasterboard is essential.

The TWPro system is HETAS Approved and CE marked, with designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20, highlighting its compliance with rigorous safety standards.

SKU: 2-125-054

Technical Specifications
Size125mm u00d8
Outer Material304 Stainless Steel (0.4mm thick)
Inner Material316 Stainless Steel (0.4mm thick)
InsulationDensely packed Rockwool, 200kg/mu00b3
ApprovalsHETAS, CE Marked
Minimum Clearance50mm from combustibles
Supported Unsupported LengthUp to 2.9 metres
DesignationEN1856-1 T600 N1 W V2 L50040 G50 & EN1856-1 T200 W V2 L50040 O20
Before installation, ensure the flue system is assembled as per manufacturer guidelines. Always maintain a minimum clearance of 50mm from any combustible material. Position the Structural Locking Band precisely at the joint above and below the final wall support to secure the chimney sections. Ensure that all parts are correctly aligned and welded where specified. Follow all local and industry safety standards during installation. When in doubt, consult a certified installer or refer to the detailed installation manual provided with your system.

The TWPro Structural Locking Band is suitable for solid fuel and gas/oil appliances including woodstoves, gas coal effect fires, oil, and gas boilers.

The band is made from 304 grade stainless steel for the outer skin and 316 grade stainless steel for the inner skin, both with a thickness of 0.4mm, complemented by densely packed rockwool insulation.

The insulation in the TWPro Structural Locking Band is made from compressed rockwool, with a density of 200kg/m³.

The TWPro Structural Locking Band is HETAS Approved and CE marked, adhering to designation numbers EN1856-1 T600 N1 W V2 L50040 G50 and EN1856-1 T200 W V2 L50040 O20.

You need to maintain a distance of 50mm from the outside of the flue to any combustible material like wood or plasterboard.

No, the TWPro Structural Locking Band is specifically designed for unsupported lengths of up to 2.9 meters. For greater lengths, additional support will be required.

Yes, the band is designed to be user-friendly. It replaces standard locking bands and secures chimney parts effectively. Ensure proper distance from combustibles and adhere to safety standards during installation.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, May 19th. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call. If you need faster stove or fireplace delivery please also give us a call. We can sometimes reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.

Warranty & Returns +

All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Price Match Guarantee +

We will match any price like for like on a retail basis. Give us a call if you find it cheaper and want to buy from us.

Read our review in our TWPro - Structural Locking Band - 125 Ø buyers guide

Secure your flue installation with confidence; order today for streamlined performance.

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