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Lid with drain - Ø 450 (3-450-037)

The Lid with Drain - Ø450mm by National Flues is a premium-quality component designed to enhance your flue system. Crafted from robust 316L stainless steel, this drainage lid is ideal for high and low temperature applications including boilers, ovens, and chimney systems. This essential chimney flue cap guarantees effective moisture management and reliable performance, making it a must-have for both trade professionals and homeowners alike.
Now only £264.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.

 

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At a Glance

    Made from high-grade 316L stainless steel for durability

    Designed for effective drainage in flue systems

    Compatible with both high and low temperature applications

    Features a high-pressure sealing gasket (P1/H1) for reliable performance

    Easy push-fit jointing system secured by a locking band

    CE marked and compliant with stringent safety standards

    Suitable for boilers, ovens, and chimney shaft liner installations

Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, August 5th. This is based on current lead times for this product. 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 on 01670 206 999. 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.

Best 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 Lid with Drain - Ø 450mm is a crucial component in our SWPro modular single wall flue system, constructed from high-grade 316L stainless steel. This component features a high-pressure sealing gasket (P1/H1) and is suitable for both high and low temperatures, handling non-condensing and condensing applications with ease. Its versatile use includes boilers, ovens, ventilation systems, and chimney shaft liners.

The SWPro system is CE marked and adheres to various stringent standards, ensuring safety and reliability. Installation is straightforward thanks to its push-fit jointing system secured by a locking band, and jointing gaskets are required for specific installations. Always maintain a safe distance of 50mm from combustible materials such as wood or plasterboard.

SKU: 3-450-037

Technical Specifications
Material316L Stainless Steel
Sizeu00d8 450mm
Installation MethodPush-fit jointing system with locking band
Drainage ConnectionStainless steel BSP connection for drainage pipework
SealingHigh-pressure gasket (P1/H1)
CertificationsCE Marked; complies with EN 1856-1 standards
ApplicationsSuitable for boilers, ovens, ventilation systems, chimney shaft liners
Temperature RangeHandles both high and low temperatures (non-condensing and condensing)
Distance To CombustiblesMinimum 50mm
Warranty10 Years
• Ensure all push-fit joints are securely connected using the locking band and appropriate jointing gaskets for P1 and H1 installations. • Verify that all gaps maintain a safe distance of at least 50mm from combustible materials such as wood or plasterboard. • Confirm that the stainless steel BSP connection is correctly attached to the drainage pipework to ensure effective moisture removal. • Always adhere to the manufacturer’s guidelines and local building regulations during installation to maintain system integrity and safety.

The Lid with Drain is made from high-grade 316L stainless steel, ensuring durability and corrosion resistance.

This product is suitable for various applications including boilers, ovens, ventilation systems, and chimney shaft liners. It handles both high and low temperatures and is effective in non-condensing and condensing environments.

Yes, the Lid with Drain is CE marked, meeting stringent standards for safety and performance.

The installation is straightforward. It uses a push-fit jointing system secured with a locking band. For P1 and H1 installations, jointing gaskets must be fitted at every joint, and a 50mm distance from combustible materials should be maintained.

Yes, the Lid with Drain is designed with a high-pressure sealing gasket (P1/H1) making it suitable for high-pressure applications.

The SWPro system is available in various diameters, from Ø 80mm up to Ø 400mm, making it versatile for different installation needs.

National Flues offers reliable nationwide delivery, ensuring your product arrives on time and in excellent condition.

What our experts say!

"The Lid with Drain - Ø 450mm is a robust and versatile component, ideal for both trade and retail customers across the UK. Reliable delivery and competitive prices make this an excellent choice for any flue system."

This product is used to cap off the bottom of a vertical flue run, usually under a tee, to allow effective drainage from the system.

National Flues is a leading supplier of high-quality fireplaces and flues in the UK, serving both retail and trade customers with competitive prices and reliable delivery.

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