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Non-concentric increaser 3 diameters - Ø 80 (3-80-204)

National Flues presents the Non-concentric Increaser 3 Diameters - Ø 80, a premium accessory designed to enhance and adapt your flue system. Engineered from high-quality 316L stainless steel, this product is a standout choice among flue system accessories, offering versatility for both high and low temperature environments. Ideal for a range of applications, this increaser provides reliable performance whether upgrading an existing system or during new installations.
The price you pay today £145.99
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

    Versatile diameter increase across three dimensions for enhanced flue system adaptability
    Constructed from robust 316L stainless steel for longevity and reliability
    Engineered for both high and low temperature applications
    Secure push-fit jointing system with an integrated Locking Band
    High-pressure sealing gasket (P1/H1) designed for demanding conditions
    Compliant with CE standards and EN 1856-1 for peace of mind
    Suitable for both non-condensing and condensing environments, under positive and negative pressures
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, June 9th. 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.

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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.

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Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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

The Non-concentric increaser 3 diameters - Ø 80 is an essential component in the SWPro modular single wall flue system. Crafted from 316L grade stainless steel, this increaser is designed to manage high pressure with a robust sealing gasket (P1/H1). Its versatile design makes it suitable for both high and low temperatures, and it seamlessly handles non-condensing and condensing applications in both positive and negative pressure environments.

Ideal for various setups such as boilers, ovens, and chimney shaft liners, the increaser ensures a reliable and efficient flow of flue gases. The system is CE marked and adheres to the stringent standards set by EN 1856-1. Installation is a breeze with its push-fit jointing system secured with a Locking Band, ensuring a tight and secure fit.

For P1 and H1 installations, jointing gaskets must be used on every joint to maintain safety and efficiency.

SKU: 3-80-204

Technical Specifications
Material316L Stainless Steel
Applicable Diametersu00d8 80 up to u00d8 400
StandardsCE marked, EN 1856-1 compliant
Installation TypePush-fit joint with Locking Band
SealingHigh-pressure sealing gasket (P1/H1)
Temperature RangeSuitable for both high and low temperature applications
Pressure HandlingCompatible with both positive and negative pressure environments
Clearance Requirement50mm distance from combustible materials
Warranty10 Years
Installation Instructions: - Ensure the flue system is clean and free from debris before starting installation. - Fit jointing gaskets (required for P1 and H1 installations) on every joint to maintain system integrity. - Use the push-fit jointing system; align the non-concentric increaser correctly before securing with the Locking Band. - Check that the increaser is properly seated to prevent any leakage. - Maintain a minimum clearance of 50mm from any combustible material as a safety precaution. - For additional security, double-check the fit after installation and perform a pressure test if required.

The Non-concentric Increaser is made from high-quality 316L grade stainless steel, ensuring durability and reliability.

This increaser is designed for diameters starting from Ø 80 and going up to Ø 400.

Yes, it features a high-pressure sealing gasket (P1/H1) and is suitable for both positive and negative pressure applications.

Absolutely. The increaser is versatile and suitable for both high and low-temperature applications, making it a universal solution.

The increaser features a modular design with a push-fit jointing system secured by a Locking Band. For P1 and H1 installations, jointing gaskets must be fitted on every joint.

The Non-concentric Increaser is CE marked and adheres to the EN 1856-1 standard, ensuring high quality and reliability.

Make sure to keep a distance of 50mm from the outside of the flue to any combustible material (such as wood or plasterboard).

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