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Non-concentric increaser 2 diameters - Ø 500 (3-500-104)

National Flues offers the premium Non-concentric Increaser 2 Diameters - Ø 500, an essential component designed for industrial and commercial flue systems. This SWPro product, expertly crafted from 316L stainless steel, provides unmatched durability and efficiency. Perfect for boilers, ovens, ventilation systems, and chimney shaft liners, this increaser is engineered to deliver reliable performance in both high and low temperature settings. Its innovative push-fit jointing system, secured by a L Read more...
The price you pay today £774.99
including free delivery Give us a call if you find it cheaper and we'll try to price match.

 

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At a Glance

    Constructed from premium 316L stainless steel for lasting durability.
    Engineered for both high and low temperature applications, including non-condensing and condensing systems.
    Quick push-fit jointing system secured by a robust Locking Band.
    Increases flue diameter in two steps to efficiently prevent condensate pooling.
    Fully compliant with EN 1856-1 standards and CE marked for safety and quality.
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, June 10th. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. 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. 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.

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 Non-concentric increaser 2 diameters - Ø 500 is an integral component of the SWPro modular single wall flue system. Made of superior 316L grade stainless steel with a high-pressure sealing gasket (P1/H1), this increaser is designed for both high and low temperature settings, accommodating non-condensing and condensing applications. Ideal for boilers, ovens, ventilation systems, and chimney shaft liners, it offers maximum versatility in various industrial and commercial applications.

Installation is straightforward with a push-fit jointing system secured by a Locking Band. Remember to fit jointing gaskets on every joint in P1 and H1 installations and maintain a clearance of 50mm from any combustible materials.

SKU: 3-500-104

Technical Specifications
SKU3-500-104
Material316L Stainless Steel
SystemSWPro
CertificationsCE, EN 1856-1 standards
Temperature RangeDesigned for both high and low temperature applications
Jointing MethodPush-fit system with Locking Band
Clearance Requirement50mm from combustible materials
Diameteru00d8 500
Warranty10 Years
Installation is straightforward with our innovative push-fit system. Begin by ensuring all conduit parts are clear of any debris. Fit the jointing gaskets on every connection in P1 and H1 installations to secure a proper seal. Use the Locking Band to firmly secure each joint. Always maintain a minimum clearance of 50mm from any combustible material to comply with safety standards. Follow the EN 1856-1 guidelines closely, and double-check each connection to verify that the system is safely and securely fitted. Any deviation from these guidelines can compromise the flue’s performance and safety.

The increaser is made from high-grade 316L stainless steel, ensuring durability and resistance to high temperatures and corrosion.

Yes, it is designed for use in both high and low temperature applications, accommodating non-condensing and condensing environments.

The increaser is versatile and ideal for boilers, ovens, ventilation systems, and as a chimney shaft liner.

The SWPro system, including the Non-concentric Increaser, is CE marked and compliant with several EN standards: EN 1856-1: T200 H1 W Vm L50040 O(50) - Ø 80 up to Ø 200 and EN 1856-1: T200 H1 W Vm L50050 O(50) - Ø 250 up to Ø 400.

Installation is straightforward with a push-fit jointing system. Make sure to use a Locking Band to secure the joints and fit jointing gaskets in P1 and H1 installations for maximum sealing.

Ensure a distance of 50mm from the outside of the flue to any combustible materials such as wood or plasterboard.

Yes, National Flues offers reliable nationwide delivery for all our products, including the Non-concentric Increaser.

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