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Adjustable pipe 0,35 - 0,50 m - Ø 125 (3-125-015)

National Flues’ Adjustable Pipe 0.35 - 0.50m - Ø 125 delivers superior performance with its robust 316L stainless steel construction and precise adjustable design. Ideal for boilers, ovens, and ventilation systems, this premium flue accessory ensures excellent safety compliance with EN 1856-1 and CE standards. Enhance your installation with trusted quality from National Flues by exploring our range of complementary flue system accessories.
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At a Glance

    Crafted from high-grade 316L stainless steel for superior durability
    Adjustable length of 0.35 - 0.50 m for flexible installations
    Ideal for both non-condensing and condensing flue systems
    Push-fit jointing with a secure locking band for easy assembly
    Complies with EN 1856-1 standards and is CE marked for enhanced safety
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, June 20th. 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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Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.

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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Adjustable Flue Pipe 0.35 - 0.50m - Ø125 is an integral component in our SWPro single wall flue system. Crafted from high-grade 316L stainless steel, it boasts excellent resistance to high temperatures and corrosion, ensuring durability in the most demanding environments. This flue pipe is ideal for a myriad of installations, including boilers, ovens, and ventilation systems.

The SWPro range is a universal flue system, suitable for both non-condensing and condensing applications, managing both positive and negative pressure flue gases efficiently.Its modular design with a push-fit jointing system and locking band makes the installation process seamless. For P1 and H1 installations, the inclusion of jointing gaskets on every joint enhances the system's integrity. This product meets rigorous CE marking standards and carries designations EN 1856-1, illustrating its compliance with high safety and performance benchmarks.

Remember to maintain a 50mm distance from any combustible materials to ensure safe operation.

SKU: 3-125-015

Technical Specifications
Material316L Stainless Steel
Length0.35 - 0.50 m
Diameteru00d8 125
ComplianceEN 1856-1, CE Marked
SystemSWPro
InsulationN/A
Safety Distance50mm
Warranty10 Years
JointingPush-fit with Locking Band
ApplicationsBoilers, Ovens, Ventilation Systems
Ensure a minimum distance of 50mm from any combustible materials such as wood or plasterboard. For P1 and H1 installations, always use jointing gaskets on every connection to secure the system. The push-fit jointing system, secured by a locking band, simplifies installation while ensuring a robust and leak-free connection. Always follow the manufacturer's guidelines and observe local regulations to guarantee a safe and compliant installation.

The Adjustable Pipe is constructed from high-grade 316L stainless steel, which offers excellent resistance to high temperatures and corrosion.

It's perfect for boilers, ovens, ventilation systems, and as a chimney shaft liner, managing both non-condensing and condensing applications.

This product meets the designations under EN 1856-1: T200 H1 W Vm L50040 O(50) for diameters Ø 80 to Ø 200 and EN 1856-1: T200 H1 W Vm L50050 O(50) for diameters Ø 250 to Ø 400.

The pipe features a push-fit jointing system secured by a locking band. For P1 and H1 installations, jointing gaskets must be fitted on every joint to ensure secure connections.

Ensure a minimum distance of 50mm from the outside of the flue to any combustible materials like wood or plasterboard.

Yes, the Adjustable Pipe is CE marked, indicating its compliance with European safety and performance standards.

The centre gasket is crucial for ensuring the integrity and secure connection of the pipe, particularly in pressurised systems.

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