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Reducer 3 diameters - Ø 650 (3-450-208)

National Flues introduces the Reducer 3 Diameters - Ø 650, a robust and innovative solution designed to enhance any flue system. Constructed from high-quality 316L stainless steel, this reducer offers superior performance for boilers, ovens, and ventilation systems. Its compliance with EN 1856-1 standards and CE marking ensures both safety and reliability, making it the smart choice for both trade and retail customers looking for efficient flue system components.
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including free delivery Give us a call if you find it cheaper and we'll normally price match.

 

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At a Glance

    High-grade 316L Stainless Steel construction

    Certified to EN 1856-1 standards and CE marked

    Versatile reducer covering multiple flue diameter ranges

    Quick and easy push-fit installation with a secure Locking Band

    Designed for both positive and negative pressure applications, ensuring reliable performance

Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Wednesday, August 6th. This is based on current lead times for this product. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. We can sometimes 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

Best 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.

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]

The Reducer 3 diameters - Ø 650 from National Flues is a versatile and essential component in any flue system. Constructed from high-grade 316L stainless steel, this reducer ensures long-lasting durability and performance across high and low temperature as well as non-condensing and condensing applications. It is a part of the modular SWPro single wall flue system, known for its high-pressure P1/H1 sealing gasket, making it suitable for both positive and negative pressure scenarios.

Certified with CE marking and adhering to EN 1856-1 standards, the reducer confidently meets international quality and safety benchmarks. Installation is straightforward with a push-fit jointing system secured by a Locking Band. For P1 and H1 installations, jointing gaskets must be fitted at every joint.

For safety, maintain a 50mm distance from any combustible materials. This reducer is ideal for use in boilers, ovens, ventilation systems, and as a chimney shaft liner.

SKU: 3-450-208

Technical Specifications
Product NameReducer 3 Diameters - u00d8 650
Inner Material316L Stainless Steel
Diameter Rangesu00d8 80 up to u00d8 200 (T200 H1 W Vm L50040 O(50)); u00d8 250 up to u00d8 400 (T200 H1 W Vm L50050 O(50))
SystemSWPro Single Wall Flue
InstallationPush-fit jointing with Locking Band; jointing gaskets required for P1/H1
ApprovalCE Marked, EN 1856-1 compliant
SafetyMaintain a 50mm clearance from combustible materials
Fuel CompatibilityGas and Oil
Warranty10 Years
Installation should adhere strictly to the manufacturer’s guidelines. Begin by ensuring all components and surfaces are clean. Use the push-fit jointing system to position the reducer, then secure with the provided Locking Band. For optimal performance in P1 and H1 installations, fit jointing gaskets at every connection point. Critically, maintain a clearance of 50mm from any combustible materials as a safety measure. Following these steps will ensure both integrity and safety in your flue system installation.

The reducer is constructed from high-grade 316L stainless steel, ensuring durability and resistance against high-pressure and various temperatures.

Yes, the reducer is CE marked and complies with EN 1856-1 standards, ensuring it meets rigorous international quality and safety requirements.

The reducer is ideal for use in boilers, ovens, ventilation systems, and as a chimney shaft liner. It’s designed for both high and low-temperature scenarios and for non-condensing and condensing applications.

The reducer features a push-fit jointing system that is secured using a Locking Band. For P1 and H1 installations, jointing gaskets should be fitted at every joint. Ensure a 50mm distance from any combustible materials during installation.

Maintaining a 50mm clearance from any combustible materials, such as wood or plasterboard, is crucial for preventing potential fire hazards and ensuring safety.

Yes, the reducer can manage both positive and negative pressure scenarios, making it versatile for different system requirements.

The reducer is suitable for diameters ranging from Ø 80 up to Ø 400, with different En 1856-1 designations: T200 H1 W Vm L50040 O(50) for Ø 80 up to Ø 200, and T200 H1 W Vm L50050 O(50) for Ø 250 up to Ø 400.

What our experts say!

"Our Reducer 3 diameters - Ø 650 is an exceptional piece of engineering, perfect for various applications including boilers, ovens, and ventilation systems. Highly durable and reliable, it’s a top choice for both retail and trade customers nationwide. Rarely beaten on price with reliable delivery."

This product is designed to reduce the diameter of a flue system, allowing for smooth transitions between different flue sizes. It enhances the performance and safety of the system across multiple applications.

National Flues is a leading supplier of high-quality fireplaces and flue systems in the UK, offering competitive pricing, reliable nationwide delivery, and secure online payments. We cater to both retail and trade customers, providing dependable products that meet industry standards.

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