Triplelock 150mm Dia x 40m Z PACK (Liner ONLY) (4Z-150-40)
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Fast deliveryFriday, November 14th*
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Best PriceCall us to beat any price you found online.
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At a Glance
- Designed specifically for relining masonry chimneys
- Triplelock seal with three-fold folding for enhanced durability
- Constructed from 0.10mm 316L grade stainless steel
- Provides reliable performance for both gas and oil appliances
- Certified to BS EN 1856-2 and carries the Kitemark
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
- Details
- Specs
- Install/Packs
- FAQs
The Triplelock 150mm Dia x 40m Z PACK (Liner ONLY) is an exceptional single skin flexible flue liner designed specifically for relining masonry chimneys. This high-performance flue liner is ideal for appliances fired by gas, as specified by the fire manufacturer, and oils up to 28 seconds. Engineered to withstand temperatures up to 260°C, the Triplelock flue liner is constructed from durable 316L grade stainless steel, measuring 0.10mm in thickness, and features five convolutions between each seam for added strength and flexibility.
The unique TRIPLELOCK seal ensures maximum reliability by folding the seam in three planes. This product comes with essential Kitemark certification to BS 715 and is tested and approved to BS EN 1856:2 standards, providing you with peace of mind regarding safety and quality. **Installation:** Ensure the liner can navigate through your chimney by pulling a small section of the diameter liner. Thoroughly sweep the chimney and check the integrity of your pot.
If not using a suspended cowl, remove the pot from the stack. Installation should begin from the top of the chimney. Attach a length of string to the nose cone (ordered separately) and the flue liner.
Pull the liner down the chimney while feeding it from the top. Once fitted, remove the nose cone, cut the liner to the appropriate length, and secure it using a clamp plate. Ensure the liner projects 75mm above the clamp plate for terminal attachment.
Secure both ends of the flue liner to a register plate or a flue pipe as required. Finally, apply a suitable cement for sealing and weatherproofing.**Maintenance:** It is advisable to sweep and maintain chimneys serving gas and oil appliances regularly, at least once a year, to ensure optimal performance and safety.
SKU: 4Z-150-40
Delivery Information* +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, November 14th. 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.
This is us — real advice over the phone, or at the counter, and real stock in our warehouse.
| Technical Specifications | |
|---|---|
| Diameter | 150mm |
| Length | 40m |
| Material | 0.10mm 316L Grade Stainless Steel |
| Temperature Rating | Up to 260°C |
| Joint Method | Triplelock |
| Convolutions | 5 between seams |
| Certifications | Kitemark to BS715; BS EN 1856-2 compliant |
| Warranty | 10 Year Conditional Warranty |
| Fuel Type | Gas and Oil (up to 28 seconds) |