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Elbow 90° - Ø 400 (3-400-030)

National Flues introduces the Elbow 90° - Ø 400, a premium stainless steel flue component engineered to optimally redirect flue gasses in commercial applications. Designed for boilers, ovens, ventilation systems and more, this robust elbow fitting complies with EN 1856-1 standards and is CE marked for safety and quality. As the leading supplier in high-quality chimney and flue solutions, National Flues ensures that every installation benefits from superior craftsmanship and expert engineering.
The price you pay today £387.99
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

    Made from high-grade 316L stainless steel
    CE marked and compliant with EN 1856-1
    Innovative modular push-fit system with a locking band
    Versatile for applications including boilers, ovens, and ventilation systems
    Efficient performance under both non-condensing and condensing conditions
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, June 27th. 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.

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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.

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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.
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  • 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).

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

The Elbow 90° - Ø 400 is a premium modular single wall flue system, expertly crafted from 316 grade stainless steel. This high-performance component is CE marked and designed to meet EN 1856-1 standards, making it suitable for a diverse range of applications, including boilers, ovens, and ventilation systems. The SWPro flue system operates efficiently under both high and low temperatures, accommodating non-condensing and condensing flue gasses in both positive and negative pressure settings.

The push fit jointing system, secured with a Locking Band, ensures easy installation, while the high-pressure sealing gasket (P1/H1) guarantees robust and secure connections. It's crucial to maintain a 50mm clearance from any combustible material. Choose the Elbow 90° - Ø 400 for reliable performance and ease of installation.

SKU: 3-400-030

Technical Specifications
SKU3-400-030
Material316L Stainless Steel
ComplianceCE Marked, EN 1856-1
Diameter400mm
Clearance50mm from combustibles
SystemSWPro
Fuel CompatibilityGas, Oil
Warranty10 Years
Installation MethodModular push-fit with Locking Band
For optimal installation of the Elbow 90° - Ø 400, begin by ensuring that all connection surfaces are clean and free from debris. Insert the push-fit connectors firmly, making sure the locking band is correctly positioned to secure the joint. It is vital to maintain a clear 50mm distance from any combustible materials. Follow the integrated instructions provided with the SWPro system, and ensure that the high-pressure sealing gasket (P1/H1) is properly installed to guarantee a leak-proof connection. Always double-check alignments and pressure settings to accommodate both positive and negative flue gas pressures.

The Elbow 90° - Ø 400 is constructed from 316L grade stainless steel, ensuring durability and resistance to high temperatures and corrosion.

This elbow is ideal for boilers, ovens, ventilation systems, and as a chimney shaft liner, accommodating both non-condensing and condensing applications.

The Elbow 90° has a diameter of 400mm, making it suitable for larger commercial appliances.

Yes, it is CE marked and designed to meet EN 1856-1 standards for safety and quality.

Installation is straightforward, thanks to its modular push fit jointing system secured with a Locking Band. Ensure a distance of 50mm from any combustible materials.

Yes, the SWPro system includes a high-pressure sealing gasket (P1/H1) for secure and reliable joints.

It is designed to handle both positive and negative pressure settings, ensuring versatility in various applications.

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