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Inspection pipe 0,5 m - Ø 125 (3-125-020)

Discover the Inspection Pipe 0.5m Ø 125 by National Flues – a high-quality stainless steel flue component designed for boilers, ovens, and ventilation systems. This premium inspection pipe, part of our SWPro modular flue system, offers exceptional durability and safety. Ideal for chimney shafts and maintenance inspections, its robust construction meets EN 1856-1 standards and is CE marked, ensuring reliability and peace of mind. Enhance your installation with optional accessories for a tailored Read more...
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At a Glance

    500mm Length Inspection Pipe
    Ø 125 stainless steel design
    Modular push-fit joint & locking band system
    High-pressure sealing gasket (P1/H1)
    CE marked & EN 1856-1 compliant
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.

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

The Inspection Pipe 0.5m Ø 125 is part of the SWPro modular single wall flue system, crafted from high-grade 316L stainless steel, ensuring durability and high resistance to corrosion. Ideal for various applications, including boilers, ovens, ventilation systems, and as chimney shaft liners, the SWPro system accommodates both high and low temperatures, condensing and non-condensing environments. The pipe features a high-pressure sealing gasket (P1/H1), making it suitable for flue gases in both positive and negative pressure scenarios.

CE marked and compliant with EN 1856-1 standards, this inspection pipe promises reliable performance and safety. Its modular design with a push-fit jointing system and locking band ensures ease of installation, while maintaining a 50mm clearance from combustibles.

SKU: 3-125-020

Technical Specifications
Length500mm
Diameter125mm
Material316L Stainless Steel
StandardEN 1856-1
ApprovalCE Marked
Sealing GasketHigh-pressure (P1/H1)
Clearance50mm required from combustibles
SystemCompatible with SWPro modular flue systems
Begin by inspecting all components of your SWPro flue system before installation. Ensure the environment allows for a minimum clearance of 50mm from any combustible materials. The push-fit jointing system allows for ease during assembly: simply align the pipe ends and push together until the locking band securely engages. Verify the proper seating of the high-pressure sealing gasket to accommodate both positive and negative pressure conditions. For further safety, cross-check the system compliance with EN 1856-1 standards and confirm that all optional accessories, such as additional sealing gaskets or locking bands, are sourced appropriately. Always follow the manufacturer's installation instructions and consult a professional if uncertain.

The inspection pipe is made from 316L grade stainless steel, known for its high durability and corrosion resistance.

This pipe is suitable for boilers, ovens, ventilation systems, and as chimney shaft liners, handling both high and low temperatures, and condensing and non-condensing applications.

The diameter of this inspection pipe is 125mm.

No, the SWPro flue system is designed for easy installation with a push-fit jointing system and a locking band to secure the components.

The inspection pipe is CE marked and complies with the standards set by EN 1856-1.

The high-pressure sealing gasket (P1/H1) ensures that the flue system can handle flue gases in both positive and negative pressure conditions effectively.

A clearance of at least 50mm from the outside of the flue to any combustible materials is necessary.

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