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:
Tee 90° - Ø 400 (3-400-035)
Discover the Tee 90° - Ø 400 from National Flues, a premium stainless steel flue component designed for efficiency and safety. This high-quality Tee is ideal for use in boilers, ovens, and ventilation systems within both condensing and non-condensing installations. Shop our reliable flue accessories in the UK now and experience industry-leading performance with a product engineered to satisfy EN 1856-1 standards.
Hover to Zoom / Click for Gallery
Out of Stock – Pre-order Now
£365.99
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
Designed for Ø 400 flue systems with a 90° connection
Modular SWPro system with push-fit jointing and locking bands
Suitable for high and low temperature, condensing and non-condensing applications
CE marked according to EN 1856-1 with a high-pressure sealing gasket (P1/H1)
×
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 Tee 90° - Ø 400 is part of the SWPro modular single wall flue system, engineered from 316 grade stainless steel to ensure durability and high performance. Its high-pressure sealing gasket (P1/H1) guarantees secure and efficient flue gas management. This versatile flue system is suitable for both high and low temperature applications, and it works smoothly with non-condensing and condensing setups in positive and negative pressure environments.
Common applications include use with boilers, ovens, ventilation systems, and as a chimney shaft liner. The SWPro system features a push-fit jointing mechanism with Locking Bands, and it requires jointing gaskets on every connection in P1 and H1 installations. It's crucial to maintain a 50mm clearance from any combustible materials during installation.
SWPro is CE marked and meets stringent industry standards (EN 1856-1).
SKU: 3-400-035
Technical Specifications
Material
316L Stainless Steel
Diameter
u00d8 400
Pressure Seal
High-pressure sealing gasket (P1/H1)
System
SWPro modular system
Clearance Requirement
50mm from combustibles
CE Marking
EN 1856-1 compliant
Warranty
10 Years
Installation of the Tee 90° - Ø 400 is straightforward when following the SWPro guidelines. Ensure that all connections are supplemented with jointing gaskets and secured using the designated locking bands. It is critical to maintain a 50mm clearance from any combustible materials. For optimal performance, clean and inspect each connection point before installation, adhere strictly to the push-fit jointing method, and verify all seals for integrity under both positive and negative pressure conditions. If integrating into a complex system, always consult the complete installation manual or engage a certified technician to ensure compliance with safety standards.
The Tee 90° - Ø 400 is constructed from high-grade 316L stainless steel, offering robust durability and resistance to corrosion.
This Tee is suitable for a wide range of applications, including boilers, ovens, ventilation systems, and as a chimney shaft liner for both high and low temperature systems.
Yes, it carries the CE marking in compliance with EN 1856-1 standards.
The product uses a modular push-fit jointing system secured with Locking Bands. Gaskets must be fitted on every joint in P1 and H1 installations, maintaining a 50mm clearance from any combustible materials.
It features a high-pressure sealing gasket capable of managing both positive and negative pressure environments.
Yes, the Tee 90° - Ø 400 is versatile enough to be used in both condensing and non-condensing applications.
This particular model is for Ø 400 diameters, but the SWPro system includes other sizes as well.
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.
Read our review in our Tee 90° - Ø 400 buyers guide
Introduction
The Tee 90° - Ø 400 is an indispensable component for any flue system that requires a precise 90° connection. Manufactured from high-grade 316L stainless steel, this product combines robust performance with exceptional durability. In this comprehensive buyer’s guide, we will explore every feature of this flue tee, discuss its installation requirements, and answer common questions to assist you in making a confident purchasing decision.
Product Overview
The Tee 90° - Ø 400 offers a blend of strength and versatility. It is part of the renowned SWPro modular system, which is designed to deliver ease of installation and efficiency even in the most challenging environments. Whether you are outfitting a boiler, an oven, or a ventilation system, this product provides a secure and reliable 90° connection that adheres to the latest CE standards (EN 1856-1). With a high-pressure sealing gasket incorporated into its design, it is engineered to handle both high and low temperature applications, as well as condensing and non-condensing systems.
Key Features and Their Benefits
- High-Quality Material: Crafted from 316L stainless steel, the Tee 90° - Ø 400 offers excellent resistance to corrosion and harsh environments. This ensures longevity and minimal maintenance over time.
- Optimised Modular Design: The push-fit jointing and locking bands facilitate a faster, more reliable installation, reducing labor time and the risk of errors.
- Versatile Application: Suitable for multiple types of systems, this Tee integrates seamlessly with both condensing and non-condensing setups, making it a perfect solution for various heating and ventilation applications.
- Safety Compliance: The product is CE marked according to EN 1856-1, ensuring it meets strict safety and performance criteria. The required 50mm clearance from combustibles further ensures safe operation in residential and commercial settings.
Installation and Safety Considerations
Proper installation is paramount to the performance and safety of your flue system. The Tee 90° - Ø 400 uses a push-fit mechanism complemented by jointing gaskets and locking bands to secure all connections. Following these guidelines is essential:
- Preparation: Before starting, ensure that all connection points are thoroughly cleaned, and inspect for any debris or damage that might compromise the seal.
- Joint Assembly: Carefully align the push-fit connections, and verify that each joint has the necessary gasket fitted. The locking bands must be securely fastened.
- Clearance Compliance: Maintain a strict 50mm clearance from any combustible materials to prevent potential fire hazards.
- Final Inspection: Once installed, conduct a thorough inspection under both positive and negative pressure conditions to confirm the integrity of the installation.
Frequently Asked Questions
Q: What material is the Tee 90° - Ø 400 made from?
A: It is constructed entirely of 316L stainless steel, offering excellent durability and corrosion resistance.
Q: How does the modular design benefit installation?
A: The modular push-fit system along with locking bands simplifies the assembly process, reducing installation time and complexity.
Q: Can this product be used with both condensing and non-condensing systems?
A: Yes, the Tee 90° - Ø 400 is versatile enough for both applications, making it suitable for a wide range of flue systems.
Q: What safety standards does this product meet?
A: The product is CE marked and complies with EN 1856-1 standards, ensuring high-performance and safety in use.
Why Choose National Flues?
National Flues is a leading supplier of premium flue systems in the UK. Our products are engineered to meet the highest standards of quality and safety, ensuring that customers receive reliable and effective solutions. The Tee 90° - Ø 400 is a testament to our commitment to excellence, providing both trade and retail customers with a product that combines innovative design with robust performance. With competitive pricing, dedicated customer support, and a focus on durability, National Flues offers a seamless experience from purchase to installation.
Addressing Common Concerns
Many customers worry about the complexity of installing flue systems. With the SWPro modular design, installation is straightforward, reducing the need for specialized tools or extensive technical knowledge. The clear guidelines and quality components minimize the risk of installation errors. Additionally, the product’s ability to perform in extreme temperature conditions assures that you are investing in a product that works reliably over time.
Final Thoughts
Choosing the right flue accessory is crucial for the safety and efficiency of your heating or ventilation system. The Tee 90° - Ø 400 provides a secure, reliable, and easy-to-install solution that meets high standards of performance and safety. Its robust construction, combined with the innovative modular design, makes this product an excellent choice for professionals and DIY enthusiasts alike. If you have any further questions or need additional assistance, our expert support team is ready to help you optimise your flue installations.
Remember, investing in quality now can prevent costly repairs and safety issues later. The Tee 90° - Ø 400 is built to last, ensuring that your flue system remains efficient and safe across years of use. Experience the peace of mind that comes with using a product that has been designed with performance and safety at its core.
Buy now or call 01670 206 999.
Compatible and other products that may be of interest...