Quiet-Vent Semi Flexible Silencer Range


Quiet-Vent Semi Flexible Silencer Range

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Further Information

Key Features

  • The construction of these units consists of a multi layered, corrugated, perforated aluminium inner duct and an aluminium / polyester outer jacket
  • Male galvanised steel connections fitted on each end, have a rubber double lip seal fitted, enabling easy leak free joints.
  • Due to its flexibility they are ideally used as a flexible connection between two miss aligning ducts
  • Can also be used to helping minimise transferred mechanical vibration / noise down ducting systems
  • Suitable for temperatures between -30ºC to +140ºC
  • can be combined immediately with our air valves
  • air supply systems
  • air conditioning systems
  • sound attenuator
  • the reduction of noise from machines
  • handy connector between ventilation units and air duct systems


Quiet-Vent Semi Flexible Silencer Range

Product Part Number

125mm x 500mm Silencer - QV125F-SILENCER

150mm x 500mm Silencer - QV-150FF-SILENCER(DC)

160mm x 500mm Silencer - QV160F-SILENCER

180mm x 500mm Silencer - QV180F-SILENCER

200mm x 500mm Silencer - QV200F-SILENCER

250mm x 500mm Silencer - QV250F-SILENCER


The Quiet-Vent sound attenuator is a strong, flexible and corrugated aluminium inner duct with a aluminium laminate outer jacket. The space between the inner and outer ducts is filled with 25 mm sound absorbing material. A non-woven barrier between the inner duct and the glass wool prevents the diffusion of glass wool particles.

The attenuator is by standard on both sides equipped with galvanized metal sleeves for direct mounting to the rigid duct work or equipment.

The semi flexible insulated sound attenuators can be used in conjunction with any ventilation system to help reduce noise ingression. 

Important Features

  • Positioned between the two layers is a 25mm thick sound absorbing material
  • A membrane is fitted specifically to not let any condensation pass through the wall of the inner duct
  • This eliminates any condensation build up between the inner duct and outer jacket

Technical Specification

Dimensions Table

Product Part Number Spigot SizeØ



BPC have years of experience in delivering equipment around the UK and other Worldwide destinations. Our dedicated dispatch team work hard to ensure the highest standards are met so that your goods arrive on-time and in pristine condition.

Our market knowledge and experience allow us to match our service to meet your requirements swiftly and safely.

Free Delivery

We offer free delivery on any order over £100 to any mainland UK or Ireland address  

Worldwide Delivery

Worldwide delivery is possible on almost all our products at low costs, delivery to countries outside the EU are normally delivered to the nearest customs office, port or terminal for the purchaser to collect and complete custom clearance.

Please contact us to confirm shipping cost and availability.  

End-To-End Support Delivery is available within 48-72 hrs, depending on method of transport, for hundreds of stock items.

Customers receiving a pallet delivery will be emailed on day of dispatch advising of delivery date. Parcel deliveries will be notified via email or SMS directly from DPD.

These checks are part of a unique commitment to building relationships with customers, understanding their specific delivery needs and responding to them positively and promptly.  

We deliver on Service

Key components such as ductwork and fittings plus the most popular selling MVHR units are kept in stock in our UK-based warehouse, which means that you receive the best possible delivery dates.

All goods are expertly packed by a professional team so that your equipment is received in pristine condition ready for installation.

All deliveries co-ordinated to suit your specific requirements and construction programme.

Delivery Partners

We only use the couriers with the highest standard of service that include

  • Fastway
  • DPD
  • Montgomery Transport
  • Liam Connolly Roadfreight Ltd
  • Europa Worldwide


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Call us on 028 28 275 150 or click below to contact us online

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Distributors for the worlds leading ventilation manufacturers

We are distributors and stockists of the leading ventilation products