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Elbow 45° - Ø 400 (3-400-031)

National Flues offers the robust Elbow 45° – Ø 400, a high-quality stainless steel solution perfectly suited for modern flue systems. As an integral component of the SWPro range, this durable flue elbow is engineered to deliver a secure, leak-proof installation for boilers, ovens, and ventilation systems. Ideal for both non-condensing and condensing applications, this product is a prime choice when searching for reliable flue accessories in the market.
The price you pay today £276.99
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 high-grade 316L stainless steel
    CE marked and compliant with EN 1856-1 European standards
    Designed for both high and low-temperature applications
    Versatile use in boilers, ovens, ventilation systems and chimney shafts
    Features a secure push-fit jointing system with locking bands and P1/H1 high-pressure sealing gaskets
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.

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 Elbow 45° - Ø 400 is part of our exceptional SWPro range, a modular single-wall flue system crafted from high-grade 316L stainless steel. Engineered to handle both high and low-temperature environments, this elbow is ideal for various applications including boilers, ovens, ventilation systems, and chimney shafts. With a P1/H1 high-pressure sealing gasket, this flue component ensures secure and leak-proof installations.

The SWPro system is built to last, accommodating both non-condensing and condensing scenarios in positive and negative pressure settings. The CE-marked construction meets stringent European standards (EN 1856-1), and its push-fit jointing system with locking bands ensures easy and secure assembly. Just remember to maintain a 50mm gap from any combustible materials during installation.

SKU: 3-400-031

Technical Specifications
Material316L Stainless Steel
Diameter400mm
Angle45u00b0
ApprovalsCE Mark, EN 1856-1
ApplicationsBoilers, ovens, ventilation systems, chimney shafts
Temperature CompatibilityHigh and low temperatures
Joint SystemPush-fit with locking band
GasketP1/H1 high-pressure sealing
Gap Requirement50mm from combustible materials
Warranty10 Years
Installation requires the use of a push-fit jointing system secured with locking bands to maintain a leak-proof connection. Always use the appropriate P1/H1 high-pressure sealing gaskets as specified, and ensure the flue maintains a minimum 50mm gap from any combustible materials. Additionally, note that optional accessories such as sealing kits and joint supports are available to further optimize your installation experience and performance.

The Elbow 45° - Ø 400 is constructed from high-grade 316L stainless steel, providing durability and excellent resistance to corrosion and high temperatures.

This elbow is suitable for a variety of applications, including boilers, ovens, ventilation systems, and as a chimney shaft liner. It performs well in both high and low-temperature environments.

Yes, this elbow can be used in both positive and negative pressure systems, making it a versatile choice for different installation requirements.

The Elbow 45° - Ø 400 uses a push-fit jointing system secured with a locking band. Ensure that jointing gaskets are used for P1 and H1 installations and maintain a 50mm distance from any combustible materials.

Yes, the Elbow 45° - Ø 400 is CE marked and complies with European standard EN 1856-1, ensuring high-quality and safety standards.

This elbow uses a high-pressure sealing gasket P1/H1, offering a secure and leak-proof connection for your flue system.

Yes, the Elbow 45° - Ø 400 is suitable for both non-condensing and condensing applications, making it highly versatile.

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