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Sump Adaptor (325mm sq. plate) - Ø 175 (28-7-SA)

Discover the National Flues Sump Adaptor (325mm sq. plate - Ø175), a top choice for chimney installations requiring a robust connection to an existing clay liner. This premium stainless steel connector seamlessly fits into single wall pipe systems, ensuring a secure, efficient setup. Enhance your installation with trusted accessories from National Flues and experience streamlined performance and durability.
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£34.99
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At a Glance

  • Premium Grade 316 Stainless Steel construction for long-lasting durability
  • 325mm square plate design ensures a robust connection
  • Downward-facing Ø175 spigot fits single wall pipe installations seamlessly
  • Simple installation requiring minimal tools
  • Designed specifically for chimney systems with clay liners

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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Sump Adaptor (325mm square plate) - Ø 175 is an indispensable tool for chimney installations where a clay pot liner is present and no chimney flue liner is being installed. Crafted from robust 1mm thick stainless steel (Grade 316), this adaptor ensures both longevity and superior performance. Before using this connector, it is imperative to smoke test the existing clay liner to verify its condition.

Installation is straightforward: secure the adaptor by drilling and screwing it into the surrounding stack, and seal it thoroughly with Fire Cement and Fire Rope. This model features a 325mm x 325mm stainless steel plate with a downward-facing spigot that fits seamlessly into a single wall pipe, ensuring a snug and secure connection.

SKU: 28-7-SA

Technical Specifications
Plate Size325mm x 325mm
Spigot Diameteru00d8175 mm
Material316 Stainless Steel
Thickness1mm
CompatibilitySingle Wall Pipe Installations
Installation RequirementsScrews, Drill, Fire Cement, and Fire Rope
• Always start by smoke testing the existing clay pot liner to ensure its condition is optimal • Position the adaptor on the underside of the chimney stack accurately • Mark the drilling points on the surrounding stack • Drill carefully at the marked points and secure the adaptor using appropriate screws • Seal all joints around the adaptor with Fire Cement and Fire Rope to prevent leakage • For additional safety, consider consulting or hiring a professional installer if you are unsure about any step

The Sump Adaptor is made from 1mm thick stainless steel, specifically Grade 316, known for its durability and resistance to corrosion.

Begin by positioning the plate towards the underside of the stack. Mark where it needs to be securely screwed. Then, drill holes, screw in the adaptor, and secure it into the surrounding stack. Finish by sealing it with Fire Cement and Fire Rope.

Yes, it is essential to smoke test the existing clay liner to ensure it is in good condition before using this adaptor for your installation.

The square plate of the Sump Adaptor measures 325mm by 325mm.

The Sump Adaptor is perfect for chimney systems with an existing clay liner where no additional chimney flue liner is being installed.

Yes, the adaptor features a downward-facing spigot designed to fit seamlessly into a single wall pipe.

Apart from the adaptor itself, you will need screws, a drill, Fire Cement, and Fire Rope to secure and seal the adaptor properly.
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 Sump Adaptor (325mm sq. plate) - Ø 175 buyers guide

Don’t miss out—enhance the safety and efficiency of your installation with our Sump Adaptor today.

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