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Ø 200 75mm Offset Internal Clay Adaptor - Ø 125 (28-125-INT075)

National Flues proudly presents the Ø 200 75mm Offset Internal Fit Clay Adaptor - Ø 125, the ideal solution for chimney installations featuring clay liners. This high-performance, 316 stainless steel component is engineered for secure and efficient internal connections, providing a tailored fit for your chimney system. Whether you are a trade professional or a homeowner, our adaptor is designed to meet the demands of modern installations, ensuring safety, durability, and a perfect connection. Enhance your chimney’s performance with a product that embodies reliability and quality – your search for premium chimney adaptors ends here.
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£63.99
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At a Glance

  • Made from 316 Stainless Steel for exceptional durability and corrosion resistance
  • Available in versatile offset options (25mm, 50mm, 75mm) for bespoke chimney installations
  • Tapered internal design ensuring a snug, secure fit within your clay liner
  • Engineered for high-performance in demanding conditions with a 1mm thick construction
  • Designed for easy integration and reliable sealing with fire cement, fire rope, and stainless steel screws

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Phone: 01670 206999
Email: [email protected]

The Ø 200mm 75mm Offset Internal Fit Clay Adaptor - Ø 125mm is an essential component for connecting to the bottom of a chimney stack that has a clay liner installed. It is constructed from durable 1mm thick stainless steel grade 316, ensuring long-lasting performance even in demanding conditions. The offset options of 25mm, 50mm, or 75mm offer versatility for various installation needs.

Before installing, ensure the existing clay liner passes a smoke test to verify its condition. The adaptor's tapered design allows for a snug fit inside the clay liner, which is often not perfectly symmetrical. Use fire cement and fire rope to create a secure seal around the clay liner, and secure the adaptor into the chamber using stainless steel screws to prevent corrosion.

The single wall pipe can then be placed over the spigot of the adaptor, completing the installation with additional fire cement or fire rope for a perfect seal.

SKU: 28-125-INT075

Technical Specifications
Material316 Stainless Steel
FinishBrushed, corrosion-resistant
Adaptor Diameteru00d8 200mm
Offset Diameter75mm
Offset Options25mm, 50mm, 75mm
Adaptation TypeInternal Fit
Wall Thickness1mm
Installation AccessoriesFire cement, fire rope, stainless steel screws
ApplicationChimney stacks with clay liners (internal fit only, where liner does not protrude more than 50mm)
Before installation, perform a smoke test on your clay liner to ensure it meets safety standards. The adaptor’s tapered end must be inserted into the clay liner carefully to achieve a proper internal fit. Secure the adaptor using a combination of fire cement and fire rope to establish an airtight seal. Once in place, use stainless steel screws to fasten the adaptor securely into the chimney chamber. Always ensure that the adaptor fits snugly and that no gaps remain; any future maintenance should involve checking the integrity of the fire seal. Note: This adaptor is designed exclusively for internal fit applications where the clay liner does not protrude by 50mm or more from the stack.

The adaptor is made from 1mm thick stainless steel grade 316, known for its durability and resistance to corrosion.

You must perform a smoke test on the existing clay liner to ensure it is in good condition before using this adaptor.

The clay end of the adaptor is tapered to allow for an internal fit. Secure the adaptor using fire cement and fire rope for a tight seal, and use stainless steel screws to secure it into the chamber. The single wall pipe can then be placed over the spigot and sealed with fire cement or fire rope.

The internal fit should be used only when the clay liner does not protrude by at least 50mm from the stack.

The offset options (25mm, 50mm, or 75mm) provide flexibility to accommodate various installation scenarios, ensuring a proper fit and connection.

Stainless steel screws are recommended to prevent corrosion, ensuring a long-lasting and secure installation.

Fire cement and fire rope ensure a secure and airtight seal around the clay liner and adaptor, which is crucial for the safe and efficient operation of your chimney system.
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 Ø 200 75mm Offset Internal Clay Adaptor - Ø 125 buyers guide

Secure your chimney’s efficiency and safety with this premium adaptor – order now and experience the difference.

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