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Sflue Black (2143005B) - Slip Section Adj Pipe - Ø 127 (42-125-020)

The Sflue Black Adjustable Pipe Slip Section Ø 127mm (2143005B) from National Flues delivers high performance and reliable flexibility for solid fuel, woodstove, gas, oil, and low sulphur coal systems. Read more...
Sflue Black (2143005B) - Slip Section Adj Pipe - Ø 127
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Now only £145.99
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At a Glance

  • Versatile design for woodstoves, gas/oil boilers, and coal effect fires
  • Constructed with dual stainless steel skins (304 outer, 316L inner) for durability
  • 4mm thickness ensures high performance and longevity
  • Insulated with high-density compressed rockwool (230kg/m³)
  • Secure 8-barbed twist-lock system with locking band for easy assembly
  • HETAS approved and CE marked with EN1856-1 T450 N1 D V2 L50040 G50 designation
  • Maintains a safe 50mm clearance from combustible materials

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.

Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The Sflue Black Adjustable Pipe Slip Section Ø 127mm (2143005B) is engineered for versatility and strength, ideal for use with both solid fuel and gas/oil appliances. Whether installed in woodstoves, gas coal effect fires, or oil and gas boilers, this slip section pipe ensures optimal performance. Crafted from 304 and 316 grade stainless steel skins, with a 0.4mm thickness, and insulated using compressed rockwool, it maintains a density of 230kg/m3.

Encapsulated within twist-lock couplers and fully laser-welded, it guarantees durability and safety. Approved by HETAS and CE marked, it meets all required standards and comes with an EN1856-1 T450 N1 D V2 L50040 G50 designation number. It is crucial to maintain a 50mm distance from combustible materials for safe installation.

Easy assembly is facilitated by an 8-barbed twist lock system and a locking band for secure fitting.

SKU: 42-125-020

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
SKU42-125-020
ModelSflue Black Adjustable Pipe Slip Section - Ø 127mm (2143005B)
DimensionsØ 127mm
MaterialsInner: 316L Stainless Steel, Outer: 304 Stainless Steel
Wall Thickness0.40mm
InsulationCompressed Rockwool (230kg/m³)
ApprovalsHETAS, CE, EN1856-1 T450 N1 D V2 L50040 G50
Distance To Combustibles50mm
Warranty15 Years manufacturing defect warranty, 2 Years paint warranty
InstallationNon-load-bearing; requires additional support component above when vertically applied
• Ensure the slip section is used solely to extend your flue system and is supported by a proper support component when installed vertically. • Maintain a strict clearance of 50mm from any combustible materials such as wood or plasterboard to guarantee safety. • Assemble using the 8-barbed twist lock system; ensure each connection is firmly secured with the locking band for optimal performance. • Optional accessories like additional insulation kits, clamp bands, and supplementary support brackets are available and recommended for customised installations. Check our accessory range to fully equip your flue system. • Always refer to the installation manual for detailed guidance and consult a professional if unsure.

It is compatible with solid fuel and gas/oil appliances including woodstoves, gas coal effect fires, oil, and gas boilers.

The outer skin is made of 304 grade stainless steel and the inner skin is 316 grade stainless steel, both at 0.4mm thickness, with insulation made from compressed rockwool.

Yes, it is HETAS approved and also CE marked.

The 8-barbed twist lock system allows for secure assembly of the chimney parts, which are further secured using a locking band.

Ensure a 50mm distance from any combustible materials like wood and plasterboard when installing.

No, it is designed to extend existing standard lengths and is not load bearing. Always use a support component directly above when applied vertically.

It carries the Designation Number EN1856-1 T450 N1 D V2 L50040 G50 and meets all CE marking requirements.

 

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