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Sflue (2159806) - Structural Locking Band - 152mm Ø (22-150-054)
National Flues proudly presents the Sflue (2159806) Structural Locking Band - 152mm Ø, a high-performance accessory engineered for secure and efficient chimney installations. Ideal for modern flue systems, this premium locking band is constructed from robust stainless steel and insulated with high-density rockwool. Perfect for wood, oil, gas, and low sulphur coal appliances, this product ensures your chimney remains safe, energy-efficient, and compliant with current standards. If you’re looking for secure chimneys, quality flue accessories, and reliable National Flues products, look no further.
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In Stock
£52.99
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
Robust 304/316 stainless steel construction
0.4mm thick skins ensure durability
8-barbed twist lock system for secure installation
Compressed rockwool insulation (230kg/m³) for superior thermal efficiency
HETAS approved and CE marked for safety compliance
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Please Note: All dimensions refer to the internal diameter of flues.
If unsure, please call 01670 206999 to ensure you choose the correct products.
We Won't Be Beaten On Price
At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:
Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
Operational Efficiency: We have streamlined processes to reduce overhead.
Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.
Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
The Sflue (2159806) Structural Locking Band - 152mm Ø is engineered for added security in chimney systems, especially for unsupported stacks up to 2.5 meters above the final support or wall band. This essential component is suitable for use with solid fuel, gas, and oil appliances, including woodstoves, gas coal effect fires, and boilers.This locking band boasts high-quality construction, including an outer skin made from 304 grade stainless steel and an inner skin from 316 grade stainless steel, both 0.4mm thick. The insulation consists of compressed rockwool with a density of 230kg/m3, encapsulated within twist-lock couplers, offering superior thermal efficiency and construction integrity.For safety and compliance, the Sflue locking band maintains a distance of 50mm from combustibles, is fully laser welded for seamless strength, and carries HETAS approval and a CE mark.
The designation number is EN1856-1 T450 N1 D V2 L50040 G50.Installation is a breeze with its 8-barbed twist lock system. Ensure you maintain a safe 50mm distance from the outside of the flue to any combustible materials such as wood or plasterboard. Choose the Sflue locking band for unparalleled durability and regulatory compliance in your chimney systems.
SKU: 22-150-054
Technical Specifications
Model
Sflue (2159806) Structural Locking Band - 152mm u00d8
SKU
22-150-054
Diameter
152mm u00d8
Outer Material
304 Stainless Steel (0.4mm)
Inner Material
316 Stainless Steel (0.4mm)
Insulation
Compressed Rockwool (230kg/mu00b3)
Installation Method
8-barbed Twist Lock
Approvals
HETAS, CE
Distance To Combustibles
50mm
Fuel Compatibility
Wood, Oil, Gas, Low Sulphur Coal
System Compatibility
Chimney systems up to 2.5m unsupported stacks
Designation
EN1856-1 T450 N1 D V2 L50040 G50
Warranty
15 Years
Before installation, verify that the chimney system and all components are clean and correctly aligned. Ensure a minimum clearance of 50mm from any combustible materials such as wood or plasterboard. The installation process involves aligning the 8-barbed twist lock system to securely join the flue sections; follow the manufacturer’s guidance carefully. Always check that all locking points have engaged fully before finalising the setup. For added safety, consider using optional accessories such as additional support brackets or insulation kits where applicable. Should you require professional assistance, consult with a certified installer to ensure regulatory compliance and optimal performance.
It is suitable for solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, and boilers.
The outer skin is made from 304 grade stainless steel, and the inner skin is made from 316 grade stainless steel. Both are 0.4mm thick.
The insulation is compressed rockwool with a density of 230kg/m3, encapsulated within twist-lock couplers.
Installation involves securing the 8-barbed twist lock Twin Wall Insulated Chimney parts together using the locking band.
The product is HETAS approved, CE marked, and adheres to designation number EN1856-1 T450 N1 D V2 L50040 G50.
The recommended distance from combustibles is 50mm from the outside of the flue.
Yes, National Flues offers reliable nationwide delivery for both retail and trade customers.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th.
If you need faster stove or fireplace delivery please give us a call.
We can often 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 Sflue (2159806) - Structural Locking Band - 152mm Ø buyers guide
Introduction
The Sflue (2159806) Structural Locking Band - 152mm Ø is an essential accessory for anyone looking to guarantee a secure and compliant chimney installation. Perfect for both residential and commercial applications, this structural locking band is engineered with precision to meet the highest safety standards and provide lasting durability. In this guide, we explore its features, benefits, installation process, and answer common questions to help you make an informed decision.
Product Overview
The locking band is a critical component designed for use in unsupported chimney systems up to 2.5 meters above the final support. Whether you are installing a new flue or upgrading an existing system, National Flues offers a product that combines robustness with compliance. Constructed from 304 grade stainless steel on the outside and 316 grade on the inside, each layer is 0.4mm thick, ensuring excellent resistance to corrosion and a long service life.
Features and Benefits
High-Quality Construction:
- The dual-layer stainless steel design provides both strength and durability.
- Your chimney system benefits from reduced risk of component fatigue, ensuring longevity.
Secure 8-Barbed Twist Lock System:
- This innovative mechanism ensures that all parts are firmly locked together, offering a stable connection throughout the lifetime of your chimney.
- The ease of installation significantly reduces the risk of incorrect assembly.
Superior Thermal Efficiency:
- The inclusion of compressed rockwool insulation (230kg/m³) improves thermal performance, which is crucial for maintaining energy efficiency in your home.
- Enhanced insulation means your heating system can operate at optimal levels, reducing energy wastage.
Compliance You Can Trust:
- With both HETAS approval and CE marking, this product adheres to strict safety and performance standards.
- Peace of mind is assured, knowing that your installation meets all industry regulations.
Installation Guidelines
Before commencing installation, ensure that all necessary components are on hand, including any optional accessories that may enhance the stability of your chimney. The manufacturer recommends a minimum clearance of 50mm from any combustible material.
Step-by-Step Installation
1. Preparation:
- Inspect all components for any transport damage.
- Ensure that the installation area is clean and free of debris.
2. Alignment:
- Carefully align the flue sections before engaging the twist-lock system.
- Ensure that the locking band sits flush against the outer surface of the flue.
3. Securing:
- Engage the 8-barbed twist lock mechanism fully, making sure that each barb is securely locked.
- Check the stability of the installation by gently tugging on the connected pieces.
4. Final Check:
- Verify that the 50mm clearance from combustibles is maintained across all points.
- Optionally, consult with a professional installer if uncertain about any step in the process.
Addressing Common Objections
Is this product compatible with different fuel types?
Yes, the Sflue Structural Locking Band has been designed for a wide range of applications including woodstoves, oil, gas, and even low sulphur coal systems. Its versatility makes it ideal for various heating appliances.
Will the installation process be too complicated?
The design of the twist-lock system ensures a straightforward installation process, even for those with limited experience in flue system assembly. Detailed instructions and clear guidelines make it easy to achieve a professional-quality installation.
What if I need additional accessories?
While the locking band provides robust performance on its own, there are several optional accessories available, such as extra support brackets, insulation enhancements, and chimneys seals. These accessories can further augment the stability and safety of your overall chimney system, and are worth exploring if you have specific needs or challenging installation conditions.
Why Choose National Flues?
National Flues is a trusted supplier recognised for offering high-quality, reliable products to both retail and trade customers. Our commitment to safety, durability, and customer satisfaction means you can trust our products to perform to the highest standards. With competitive pricing and a dedication to customer service, National Flues consistently delivers solutions that meet and exceed industry expectations.
Final Considerations
Before finalising your purchase, ensure that you have considered all aspects of your chimney installation, including potential optional accessories that might further enhance the safety and performance of your system. Whether you are a seasoned professional or a DIY enthusiast, the Sflue (2159806) Structural Locking Band - 152mm Ø is designed to provide secure and compliant support to your flue systems.
Make an informed decision by weighing the benefits of its robust construction, ease of installation, and comprehensive safety features. With the backing of HETAS approval and CE marking, this product is not just an accessory but a long-term investment in the safety and performance of your heating system.
Buy now or call 01670 206 999.
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