Non-concentric increaser 3 diameters - Ø 500 (3-500-204)
At a Glance
- Constructed from high-grade 316L Stainless Steel
CE marked and compliant with EN 1856-1 standards
Features a push-fit jointing system secured with a Locking Band
Designed to maintain a 50mm clearance from combustible materials
Ideal for varying temperature conditions including high and low, and both condensing and non-condensing systems
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, June 10th. 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.
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.
We Won't Be Beaten On Price
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.
- Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
- Operational Efficiency: We have streamlined processes to reduce overhead.
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]
- Info
- Specs
- Install
- FAQs
The Non-concentric Increaser for 3 Diameters with Ø 500 is engineered for excellence in commercial chimney and ventilation systems. This increaser is part of the modular SWPro single wall flue system, crafted from premium 316L stainless steel with thickness varying according to flue diameter. Suitable for a variety of applications, it handles both high and low temperatures, non-condensing and condensing environments with flue gases in positive and negative pressure.
The system is CE marked, and approved under EN 1856-1 standards. The SWPro's design features a high-pressure sealing gasket P1/H1, push-fit jointing system secured with a Locking Band, and requires jointing gaskets for installation to maintain efficiency and safety. It's important to maintain a 50mm clearance from any combustible materials during installation.
This increaser is perfect for boilers, ovens, ventilation systems, and chimney shaft liners.
SKU: 3-500-204
| Technical Specifications | |
|---|---|
| SKU | 3-500-204 |
| Diameter | Ø 500 |
| Material | 316L Stainless Steel |
| Standards | EN 1856-1, CE Marked |
| System | SWPro |
| Fuel Compatibility | Gas, Oil |
| Maintenance Clearance | 50mm |
| Warranty | 10 Years |
| Installation Method | Push-fit jointing system with Locking Band and jointing gaskets |
