We use cookies to ensure a smooth, secure, and ever-improving experience on our website. By continuing to browse, you agree to our use of cookies as detailed in our Cookie Policy. Enjoy your visit and let us now if you need any help!
Cookie Preferences
We use different types of cookies for various purposes. Please select which you allow:
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.
Hover to Zoom / Click for Gallery
Out of Stock – Pre-order Now
£204.99
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
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
×
Email Product
Enter your email address to send the product details:
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.
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.
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.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Thursday, May 1st. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call.
If you need faster stove or fireplace delivery please also 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. Mi-Flex offers a lifetime guarantee.
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.
Comprehensive Buyer’s Guide for the Elbow 45° - Ø 400
When considering the best components for your flue system, the Elbow 45° - Ø 400 from National Flues is an outstanding option. In this guide we will explore every facet of this product, addressing key installation techniques, material benefits, and even the optional accessories that can further enhance its performance. Whether you are a seasoned installer or a first-time buyer, this detailed guide is designed to answer all of your questions.
Product Overview
The Elbow 45° - Ø 400 is part of the exceptional SWPro range of modular single-wall flue systems. Crafted from high-grade 316L stainless steel, the elbow offers unmatched durability and resistance against corrosion and the effects of high temperature. The product is CE marked in accordance with EN 1856-1, ensuring it meets strict safety and quality standards. Its design is particularly well-suited for a variety of settings including boilers, ovens, ventilation systems, and chimney shafts.
Key Features and Their Benefits
Durability and Longevity: The use of 316L stainless steel not only ensures that the elbow stands up to the test of time but also guarantees reliability even in high-demand settings. This material choice is crucial for maintaining optimal performance in both domestic and industrial installations.
Safety Compliance: With CE marking and strict adherence to European standards, you can be confident that the product meets all necessary safety regulations. This compliance minimizes risks during installation and operation, providing you with peace of mind.
Versatile Performance: Whether your flue system is subject to positive or negative pressure, or even in condensing environments, the Elbow 45° - Ø 400 adapts effortlessly. Its push-fit jointing system, complete with locking bands, makes it a breeze to install while ensuring a leak-proof connection.
Installation Best Practices
Installing the Elbow 45° - Ø 400 is straightforward if you adhere to a few key guidelines:
• Ensure that you use the recommended P1/H1 high-pressure sealing gaskets to secure a leak-proof joint.
• Follow the push-fit jointing system strategy for a swift and secure assembly.
• Always maintain a minimum of a 50mm gap from any combustible materials to adhere to safety protocols.
For those looking to enhance their installation further, consider exploring optional accessories available in our catalogue. Accessories such as additional sealing kits and joint supports can further secure connections and improve the overall performance of your flue system.
Addressing Common Concerns
Q: What if I need additional accessories to complete my installation?
A: National Flues offers a variety of optional accessories that complement the Elbow 45° - Ø 400. These include sealing kits, joint supports, and additional locking bands. An online search or consultation with our support team can provide you with the exact components you need.
Q: Is this product over-engineered for a simple installation?
A: Not at all. While the Elbow 45° - Ø 400 is designed to handle rigorous environments, its user-friendly push-fit design ensures that installers of all levels can achieve a secure installation without unnecessary complications.
Q: Can this elbow be used in both new builds and retrofit projects?
A: Absolutely. The versatile design makes it a perfect fit for new installations as well as upgrading existing systems. This means whether you’re building from scratch or enhancing your current setup, this elbow remains an excellent choice.
Optional Accessories
To achieve the highest performance, consider pairing the Elbow 45° - Ø 400 with our range of optional accessories. These additional components, such as advanced sealing kits and reinforced joint supports, help create an even more secure and efficient flue system. They are especially useful in applications where enhanced durability and airtight seals are paramount.
Final Considerations
The decision to invest in the Elbow 45° - Ø 400 means opting for quality, reliability, and performance. With its robust construction, compliance with European safety standards, and ease of installation, this component stands out as a smart choice for any flue system project. Whether you are a professional installer or a dedicated DIY enthusiast, understanding the benefits and installation requirements of this product will ensure that you achieve the best results in your heating or ventilation project.
In summary, the Elbow 45° - Ø 400 is a meticulously designed component that combines superior materials with smart engineering. Its versatility, enhanced with optional accessories, makes it an invaluable addition to any flue installation. By investing in this product, you are not just buying an elbow – you are securing a long-term, efficient, and safe solution for your heating system.
Buy now or call 01670 206 999.
Compatible and other products that may be of interest...
