The Circular Single Blade Externally Resettable Combination Fire and Volume Control Damper is a compact, space-saving solution designed for easy commissioning and maintenance. It functions simultaneously as a manual volume control damper and a fully operational fire damper. Testing, resetting, and thermal fuse replacement are performed entirely outside the ductwork. [1, 2, 3, 4]
Key Features
- Compact Design: Ideal for tight spaces with a 320mm standard case length.
- Dual Functionality: Combines fire safety with a 7-preset manual volume control handle (10° increments).
- External Maintenance: Thermal fuse replacement and resetting happen outside the duct.
- Easy Installation: Perforated installation plate acts as a template for quick mounting.
- Visual Indicator: Alignment handle clearly shows the internal blade position.
- Compliance Ready: May require access panels to meet DW145 G.3.1.5 standards.
Standards & Classifications
- Fire Resistance: Meets EN 1366-2 criteria (even when set to a volume control preset).
- Smoke Leakage: ES classified for reduced smoke leakage under BS EN 1366-2.
- Airflow Performance: Aerodynamically tested to BS EN 1751.
- Casing Standards: Damper casing conforms to BS EN 1506.
- Versatility: Tested and assessed for various supporting structures.
Note: This product must be installed strictly in accordance with the manufacturer's guidelines. [1]
- Circular Single Blade Externally Resettable Combination Fire and Volume Control Damer
- Dual Action: Combines a fully operational fire damper with manual volume control.
- Smoke Safety: ES classified for reduced smoke leakage (BS EN 1366-2)
- Airflow Tested: Aerodynamically tested and approved to BS EN 1751 standards.
| Product Type | Fire Dampers |
| Product Code | Circular Single Leaf Fire Damper |
| Applications | HVAC and Ventilation Systems |
| Available Sizes | 100mm, 125mm, 150mm, 160mm, 200mm, 250mm, 300mm, 315mm. |
| Delivery Terms | ||
|---|---|---|
| Area | Order value | Delivery Charge (Ex VAT) |
| On select Postcodes (Around London, Manchester, Leeds, Bristol, York etc) | Orders Below £110 | £10 |
| On select Postcodes (Around London, Manchester, Leeds, Bristol etc) | Orders Above £110 | Free Delivery |
| On select Postcodes (Scotland, Swansea, Cornwall etc) | Any value | £25 |
Returns/Refunds And Cancellations:
You can cancel your order and get a full refund anytime before we confirm your order via email. Orders cannot be cancelled after the order confirmation is sent.
If you want to return insulation that was ordered in excess or not of use anymore, you can return them within 14 days from the date of receipt, provided they are unused and in a resalable condition. The customer returns the goods to the address shared via email. Please contact us via email and we will assist you accordingly.
If the product is damaged, then you are within your rights to claim an exchange or a refund. For more information, please refer to our delivery information page.
For more information on returns and deliveries, please refer to our delivery information page.

