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Lid - Ø 600 (3-600-036)

National Flues presents the Lid - Ø 600, a premium flue cap crafted from high-grade 316L stainless steel. This essential component is designed to close off branches and headers in your flue system with precision and durability. Boasting full CE marking and compliance with EN 1856-1 standards, this product perfectly complements the SWPro modular system and supports both condensing and non-condensing installations. Ideal for various commercial and residential setups, it is a standout choice for th Read more...
The price you pay today £275.99
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At a Glance

    Made from high-grade 316L stainless steel
    CE marked and compliant with EN 1856-1 standards
    Versatile for use in boilers, ovens, and various flue systems
    Secure Locking Band for stable, reliable installation
    Designed for both condensing and non-condensing applications
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, June 13th. 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:

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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 Lid - Ø 600 is an integral part of the SWPro modular single wall flue system, crafted from high-grade 316L stainless steel, ensuring durability and resistance to high-pressure environments. This flue cap is designed to effectively close off the branch or base of a tee or the end of a header, utilizing a secure Locking Band. Suitable for various applications including boilers, ovens, and ventilation systems, the SWPro system operates efficiently under both high and low temperatures, accommodating non-condensing and condensing applications with flue gases in both positive and negative pressure.

With thickness varying by flue diameter, the SWPro system is CE marked, compliant with EN 1856-1 standards, and easy to install using a push-fit jointing system and necessary gaskets for P1 and H1 installations. Ensure a safe distance of 50mm from any combustible materials during installation for optimal safety.

SKU: 3-600-036

Technical Specifications
Material316L Stainless Steel
SystemSWPro Modular Single Wall Flue System
ApprovalsCE Marked
DesignationEN 1856-1: T200 H1 W Vm L50040 O(50) for u00d880 to u00d8200; T200 H1 W Vm L50050 O(50) for u00d8250 to u00d8400
InstallationPush-fit jointing system with Locking Band secured joints; gaskets required for P1 and H1 installations
Distance To Combustibles50mm clearance required
Warranty10 Years
Pressure ConditionsSuitable for flue gases in both positive and negative pressure environments
Temperature RangeOperates efficiently under both high and low temperature conditions
Install the Lid - Ø 600 using a push-fit jointing system, ensuring that the Locking Band is properly secured for a stable fit. For P1 and H1 installations, be sure to fit jointing gaskets on every connection. Always maintain a minimum clearance of 50mm from any combustible materials to ensure optimal safety. Follow the manufacturer’s guidelines strictly and double-check each joint for a secure installation to prevent leaks or performance issues.

The Lid - Ø 600 is constructed from high-grade 316L stainless steel.

Yes, the Lid - Ø 600 is CE marked and complies with the relevant standards.

The Lid - Ø 600 is suitable for a variety of applications, including boilers, ovens, ventilation systems, and as a chimney shaft liner.

The Lid - Ø 600 should be installed using a push-fit jointing system secured with a Locking Band. In P1 and H1 installations, jointing gaskets must be fitted on every joint, and a 50mm distance should be maintained from any combustible materials.

Yes, the Lid - Ø 600 is designed for both high and low temperature applications, as well as non-condensing and condensing environments.

The Lid - Ø 600 is suitable for use with flue gases in both positive and negative pressure conditions.

The designation number is in accordance with EN 1856-1: for diameters Ø 80 to Ø 200, it is T200 H1 W Vm L50040 O(50); for diameters Ø 250 to Ø 400, it is T200 H1 W Vm L50050 O(50).

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