Nationwide UK Delivery
Trade Accounts Available
Technical Support
Nationwide UK Delivery
Trade Accounts Available
Technical Support
| Availability | In Stock & Ready to Dispatch |
| Bulk Orders | Project & Bulk Quantities Available |
| In-House Logistics | Reliable Delivery with Standard and Express Shipping Options |
The Back-Draught Shutter (BDS) is a mechanical device installed in ductwork to prevent reverse airflow when a fan or ventilation system is not operating. It automatically closes when air pressure drops, stopping unwanted drafts, heat loss, or ingress of dust and contaminants. Back-draught shutters are commonly used in HVAC supply, extract, and exhaust systems for commercial, industrial, and residential applications.
Material:
Casing: Galvanised steel or stainless steel for durability and corrosion resistance
Blades: Aluminium or steel, lightweight for smooth operation
Hinges/Shafts: Stainless steel or zinc-plated steel for long-lasting movement
Seals (optional): Rubber or silicone to minimise leakage
Specifications:
Type: Gravity-operated or spring-assisted back-draught shutter
Sizes: Available in circular and rectangular ducts, custom sizes as required
Pressure Rating: Suitable for low to medium pressure duct systems
Mounting: Inline duct installation, wall, or roof openings
Blade Operation: Opens under positive airflow and closes automatically under reverse flow
Finish: Galvanised steel standard; powder coating or stainless steel optional
Applications: Supply, extract, and exhaust air systems in HVAC installations
Optional Features: Motorised actuation, locking mechanism, and weatherproof option
Estimated Delivery: 2–5 Working Days
Shipping costs will be calculated during checkout.
Check delivery options at checkout
The Back-Draught Shutter (BDS) is a mechanical device installed in ductwork to prevent reverse airflow when a fan or ventilation system is not operating. It automatically closes when air pressure drops, stopping unwanted drafts, heat loss, or ingress of dust and contaminants. Back-draught shutters are commonly used in HVAC supply, extract, and exhaust systems for commercial, industrial, and residential applications.
Material:
Casing: Galvanised steel or stainless steel for durability and corrosion resistance
Blades: Aluminium or steel, lightweight for smooth operation
Hinges/Shafts: Stainless steel or zinc-plated steel for long-lasting movement
Seals (optional): Rubber or silicone to minimise leakage
Specifications:
Type: Gravity-operated or spring-assisted back-draught shutter
Sizes: Available in circular and rectangular ducts, custom sizes as required
Pressure Rating: Suitable for low to medium pressure duct systems
Mounting: Inline duct installation, wall, or roof openings
Blade Operation: Opens under positive airflow and closes automatically under reverse flow
Finish: Galvanised steel standard; powder coating or stainless steel optional
Applications: Supply, extract, and exhaust air systems in HVAC installations
Optional Features: Motorised actuation, locking mechanism, and weatherproof option
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Shipping Information • UK-wide delivery, including Northern Ireland, Scottish Highlands and remote locations. • Orders are processed within 1–2 working days (Mon–Fri). • Standard UK delivery takes approximately 2–5 working days from purchase. • Shipping costs are calculated at checkout based on order size, weight and delivery location. • Free delivery is available on selected orders. Additional charges may apply for large, bulky or remote-area deliveries. • Tracking details are provided once your order has been dispatched. • International shipping is available. Customs duties, taxes and import fees may apply and are the responsibility of the customer. • If your order arrives damaged, incorrect or incomplete, please contact us within 7 days of delivery. For full details, please see our Shipping Policy.
Returns must be requested within 7 days of delivery and approved before being sent back. Items must be unused, undamaged, and in their original packaging. Customers are responsible for return shipping costs, and a restocking fee of up to 25% may apply. Refunds are processed within 3–5 working days after inspection. For damaged, faulty, or incorrect items, please contact us within 7 days of delivery.
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