Gasket - Ø 80
At a Glance
- - Robust 304 and 316 stainless steel construction
- - Suitable for solid fuel & gas/oil appliances
- - Compressed rockwool insulation for enhanced thermal performance
- - HETAS approved and CE marked
- - Designed for secure, tight sealing with a Locking Band

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: [email protected]
- Info
- Specs
- Install
- FAQs
The Gasket Seal Ø 80 is an essential component for maintaining the safety and efficiency of your chimney system. Constructed for use with solid fuel and gas/oil appliances, including woodstoves, gas coal effect fires, and oil and gas boilers, this gasket ensures a secure and tight seal. The outer skin is made from 304 grade stainless steel, and the inner layer utilizes 316 grade stainless steel, both at a sturdy 0.4mm thickness.
The insulation comprises compressed rockwool, offering a remarkable density of 200kg/m³ for TWPro and 128kg/m³ for other components. Fully welded parts guarantee a seamless installation. With a safe distance of 50mm from combustibles for TWPro and 60mm for KC, the Gasket Seal meets high safety standards.
HETAS approved and CE marked, the TWPro series holds designations TWPro EN1856-1 T600 N1 W V2 L50040 G50 and TWPro EN1856-1 T200 W V2 L50040 O20. KC has equivalent designations with different combustible clearances. Secure your flue components effectively using a Locking Band and ensure your setup adheres to required safety distances from flammable materials.
SKU: 15-80-102
Technical Specifications | |
---|---|
SKU | 15-80-102 |
Nominal Diameter | 80 mm |
Outer Material | 304 Stainless Steel (0.40mm thick) |
Inner Material | 316 Stainless Steel (0.40mm thick) |
Insulation | Compressed rockwool (TWPro: 200kg/mu00b3, KC: 128kg/mu00b3) |
Approvals | HETAS, CE |
Combustible Clearance | TWPro: 50mm, KC: 60mm |
Designations | TWPro EN1856-1 T600 N1 W V2 L50040 G50 / TWPro EN1856-1 T200 W V2 L50040 O20 |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. 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. If you find it cheaper within 48 hours, we'll refund the difference.
Compatible and other products that may be of interest...
National Flues Ltd Verdict
The Gasket Seal Ø 80 stands out for its robust construction and reliable performance. Perfect for both retail and trade customers, we offer secure online payments and efficient nationwide delivery.
The Gasket Seal Ø 80 is used to ensure a secure and efficient seal in chimney systems, particularly for condensing appliances like solid fuel and gas/oil fires.
National Flues is a leading supplier of fireplaces and flues across the UK, known for unbeatable prices, reliable delivery, and exceptional customer service to both trade and retail customers.
