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Adaptor female-female - Ø 450 (3-450-003)

Experience the excellence of the SWPro Adaptor Female-Female Ø 450 from National Flues, a leader in high-quality stainless steel flue systems. This premium adaptor, designed for various heating applications such as boilers, ovens, and ventilation systems, is built with 316L stainless steel to meet rigorous standards. CE marked and compliant with EN 1856-1, this essential component enhances both safety and efficiency in your modular flue system. Discover innovative components and quality accessories uniquely designed to ensure optimal performance and longevity in your flue and chimney solutions.
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At a Glance

    Premium 316L Stainless Steel for durability

    CE marked and compliant with EN 1856-1 standards

    Versatile design for boilers, ovens, ventilation and chimney applications

    Easy push-fit jointing system with secure locking band

    Suitable for both non-condensing and condensing scenarios

    Maintains a safe 50mm distance from combustibles

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.

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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:

  • Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
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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).

“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.

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

The SWPro Adaptor Female-Female Ø 450 is a premium-quality component in the SWPro modular single wall flue system. Crafted from high-grade 316L stainless steel, this adaptor is designed for diverse applications, ranging from boilers and ovens to ventilation systems and chimney shaft liners. Featuring a high-pressure sealing gasket P1/H1, it is suited for use in both high and low temperature settings, accommodating non-condensing and condensing applications with flue gases in positive and negative pressure.

This adaptor is CE marked and meets the stringent EN 1856-1 standards. Installation is straightforward with a push-fit jointing system and locking band. Ensure you maintain a safe distance of 50mm from any combustible materials during installation.

SKU: 3-450-003

Technical Specifications
SKU3-450-003
Product NameAdaptor Female-Female u00d8 450
Material316L Stainless Steel
DesignationEN 1856-1: T200 H1 W Vm L50040 O(50) - u00d8 80 up to u00d8 200; EN 1856-1: T200 H1 W Vm L50050 O(50) - u00d8 250 up to u00d8 400
SystemSWPro
ApprovalsCE Marked
Distance To Combustibles50mm
Warranty10 Years
InstallationPush-fit jointing system with locking band
Installation of the SWPro Adaptor Female-Female Ø 450 is straightforward but must adhere to strict guidelines for safety and performance. Begin by ensuring that all flue components are clean and free from debris. Connect the adaptor using the push-fit jointing system, making sure that the high-pressure sealing gasket (P1/H1) is correctly positioned to ensure an airtight seal. Secure the connection using the integrated locking band. Always verify that there is a minimum 50mm distance to any combustible materials before proceeding with installation. It is recommended to follow the manufacturer’s instructions in parallel with local regulations for flue installations, especially in condensing and non-condensing setups.

It is made of high-grade 316L stainless steel, ensuring durability and longevity.

This adaptor is ideal for boilers, ovens, ventilation systems, and serves as a chimney shaft liner.

Yes, it is CE marked, meeting the EN 1856-1 standards.

The adaptor utilizes a push-fit jointing system secured with a locking band. Jointing gaskets should be used for P1 and H1 installations.

Maintaining a 50mm distance from any combustible material ensures safety and compliance with regulations.

Yes, it is designed to handle flue gases in both positive and negative pressure environments.

This designation certifies that the product meets the European standards for temperature resistance, high pressure, and other critical performance metrics.

What our experts say!

"The SWPro Adaptor Female-Female Ø 450 is a robust and versatile flue system component ideal for both trade and retail customers. With our unbeatable pricing and reliable nationwide delivery, National Flues ensures you get the best products with exceptional service."

The SWPro Adaptor Female-Female Ø 450 is used to connect and secure various parts of a modular flue system, ensuring efficient and safe ventilation of flue gases.

National Flues is a trusted supplier of high-quality fireplaces and flues, serving both retail and trade customers across the UK. Renowned for competitive pricing and reliable delivery, the company offers secure online payments and excellent customer service.

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