BSB Dampers
Air, Fire and Smoke Control
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BSB Engineering Services Ltd.
Unit 56, Trinity Trade Centre,
Mill Way, Sittingbourne,
Kent ME10 2PD, United Kingdom
Sales Office: +44(0)1795 422609
General Enquiries:
+44(0)1795 505366
For purchase orders please email:

For pricing enquiries please email:

For technical enquiries please email:

For all other enquiries please email:

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Welcome to BSB Engineering Services Ltd.

Manufacturers of air, fire and smoke control products

Our Sales Office staff have some 60+ years experience dealing with customer sales and technical enquiries, as well as organising delivery and despatching of 1000's of orders annually to national, european and international destinations.

All orders are fully computerised with easy traceability.

The BSB Product Range

The following product groups are the company's current portfolio.

Where applicable, these products are tested and conform to national and/or international specifications. BSB also manufacture bespoke products for O.E.M.'s.

Click on the links below for individual product information.

NEW FD-R Series

FD-R Series

Rectangular Single Blade Externally Resettable
Combination Fire and Volume Control Damper


AT-FSD Series

Air Transfer Fire Smoke Dampers

For use above protective doorways and extended fire separations, often within ceiling voids, to allow the movement of air typically between the stairwell to the lobby and is intended as an unducted installation.

The optional purpose designed non-vision grille provides a discrete appearance.

Requiring access from one side of the fire separation wall only, the damper when installed maintains fire compartmentation in the event of a fire.

LD and LDN Series

LD-LDN Series

Lobby Dampers

designed for smoke evacuation and control within lobbies and are installed into extract shafts in multi-level buildings, to maintain tenable conditions in the common escape routes in the event of a fire.

LD series dampers are designed to work in fan power extract systems. Air is pulled through the damper and into the extract shaft.

LDN series dampers work in natural draft (stack effect) ventilation which requires a minimum free area of one metre square to comply with current standards and Approved Document B specification.

ETD Series

ETD Elevated Temperature Volume Control Damper

Elevated Temperature Volume Control Dampers Dampers

Designed for the control of air through the connecting ductwork and is suitable for continuous elevated temperatures up to 300°C.

In addition to operation at elevated temperatures, the ETD Series damper can also be used in conventional ducted systems where manual or motorised control dampers are called for.

A60 Series

A60 Marine Fire Damper

Marine Fire Dampers

For use in marine applications to protect the integrity of fire rated bulkheads and decks.

Each A60 damper is controlled by an electrical failsafe spring return actuator combined with a thermoelectric tripping device (thermal fuse) and volt free contacts for remote status indication.

VC Series

Volume Control Dampers

For use in low to medium velocity H&V systems. Can also be used to perform actuated control functions where low closed blade leakage is not a requirement.

FSD-TD Series

Fire and Smoke Dampers

For use in heating, ventilation and air-conditioning (HVAC) systems at fire boundaries to maintain compartmentation and protect means of escape in case of fire. Also has the advantage of having reduced smoke leakage characteristics. They can respond to a smoke alarm input as well as having a failsafe thermal fuse.

FSD-C Series

Circular Single Blade Combination Fire and Smoke Dampers

Full product information can be found in the FSD-C product brochure.

FD Series

Fire Dampers

The FD Series Steel Curtain Fire Damper is designed to stop the spread of fire through ducts, walls, floors and ceilings.

FD-C Series

Circular Single Blade Fire and Air Control Dampers

Full product information can be found in the FD-C product brochure.

SS Series

Slimseal Dampers

Specifically designed for installation primarily into ventilation ducts to regulate low-medium air velocities.

NEW PRODUCT - details coming soon.

HD Series

Heavy Duty Duct Regulating Dampers

Specifically designed for installation in systems where high air pressures and velocities are experienced.

BD Series

Backdraught Dampers

Self-opening subject to air velocity and is designed to restrict air back flow. The damper can be fitted to partitions or brick walls, on plenums or duct mounted.

SB Series

Single Blade Dampers

Available in 100mm to 315mm diameters.

RVC Series

Residential Volume Control Dampers

Available in three standard sizes.

Access Doors

A range of Access Doors are available:

BSB Engineering Services Ltd. reserves the right to modify or withdraw any specification without prior notice that may result from continuous product development. The information contained within this website is for reference only. Full product details should be obtained from our Sales Office.

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