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Adaptor female-female - Ø 650 (3-650-003)

Explore the National Flues range with the Adaptor Female-Female Ø 650—a robust solution crafted from superior 316L stainless steel. Engineered for high performance in boilers, ovens, ventilation systems, and as a chimney shaft liner, this premium adaptor meets CE and EN 1856-1 standards. Ideal for both residential and commercial applications, our SWPro modular flue system exemplifies reliability and safety, making it a trusted accessory in modern flue installations.
The price you pay today £336.99
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At a Glance

    Constructed from high-grade 316L Stainless Steel for exceptional durability
    CE marked and EN 1856-1 compliant, ensuring top safety standards
    High-pressure sealing gasket with P1/H1 ratings guarantees a leak-free fit
    Modular push-fit jointing system with Locking Band for quick, secure assembly
    Versatile application across boilers, ovens, ventilation systems, and chimney shaft liners
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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Have Questions?
Phone: 01670 206999
Email: [email protected]

The Adaptor Female-Female Ø 650 is a key component in our SWPro modular single wall flue system. Crafted from superior 316L stainless steel, this flue adaptor is designed to handle both high and low-temperature applications, making it suitable for boilers, ovens, ventilation systems, and chimney shaft liners. Its robust design includes a high-pressure sealing gasket with P1/H1 ratings, ensuring a seamless fit in both positive and negative pressure environments.

The modular design with a push-fit jointing system and Locking Band secures the structure firmly, while jointing gaskets provide additional security when needed. CE marked and compliant with EN 1856-1 standards, this adaptor promises durability and performance, making it an ideal choice for both domestic and commercial installations.

SKU: 3-650-003

Technical Specifications
SKU3-650-003
Material316L Stainless Steel
SystemSWPro
ApprovalsCE, EN 1856-1
DesignationsT200 H1 W Vm L50040 O(50) (u00d8 80 up to u00d8 200); T200 H1 W Vm L50050 O(50) (u00d8 250 up to u00d8 400)
Clearance50mm from combustibles
Warranty10 Years
Gasket RatingsP1/H1
Suitable ForGas, Oil applications
ApplicationsBoilers, Ovens, Ventilation Systems, Chimney Shaft Liners
Installation SystemModular push-fit with Locking Band
• Ensure all components and connection surfaces are clean and free from debris before installation. • Use the modular push-fit jointing system along with the high-pressure sealing gasket to achieve a secure, leak-free connection. • Tighten the Locking Band properly to maintain the integrity of the flue system, particularly in P1/H1 rated installations. • Always maintain a minimum clearance of 50mm from any combustible materials to ensure safety. • If additional security is needed for your installation, incorporate recommended jointing gaskets as per the installation guide. • For any installation queries or further technical assistance, refer to our detailed technical manual or contact our customer support.

The Adaptor Female-Female Ø 650 is used to connect different sections of a flue system, particularly in boilers, ovens, ventilation systems, and chimney shaft liners.

The adaptor is made from high-grade 316L stainless steel, ensuring durability and resistance to corrosion.

Yes, the adaptor is designed to handle both high and low-temperature applications, making it a versatile component for various installations.

Yes, the Adaptor Female-Female Ø 650 is CE marked, ensuring it meets European safety and performance standards.

The adaptor uses a modular push-fit jointing system secured with a Locking Band. Jointing gaskets should be used for P1 and H1 installations to ensure a secure fit.

The adaptor meets the EN 1856-1 standards, with designations T200 H1 W Vm L50040 O(50) for Ø 80 up to Ø 200 and T200 H1 W Vm L50050 O(50) for Ø 250 up to Ø 400.

A minimum clearance of 50mm is required from the outside of the flue to any combustible materials like wood or plasterboard.

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