BSB Engineering Services Limited
Unit E
Tribune Drive
Trinity Trading Estate
Sittingbourne
Kent ME 10 2PD
T: +44(0)1795 422609
F: +44(0)1795 429543
Contact
our Sales Office for more information

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Operating and maintenance
Flangefit 30
30mm flange
100 to 1000mm sq.
Flangefit 35
35mm flange
100 to 1000mm sq.
Extended spindle
Hand Control
Electric Motor
Pneumatic Motor
Multiple assemblies available
BD Series
DD Series
Control Panel Systems
FD Series
FSD Series
HD Series
SB Series
SC Series
SF Series
SlimFit Regulating Dampers
The SF Series
Slimfit Regulating Damper has been specifically designed for installation
primarily into ventilation ducts to regulate low-medium air velocities.
Its construction is robust, with detail to its application, performance and
size as required by specifiers and contractors considered during development.
The selection of components and materials has been specific so as to ensure
a high quality, low-maintenance product.
Single section units are available from 100mm to 1000mm in either width or
height.
Featuress
• Standard case construction is galvanised
mild steel
• Standard blade construction is 50mm
wide extruded aluminium
• Standard out of airflow linkage
• Standard opposed blade operation
• Standard blade end caps (aluminium blade only)
• Optional stainless steel case grades
316 and 430
• Optional 63.5mm wide stainless steel blades grades
316 and 430
• Optional flange sizes
• Optional side seals grade 301
• Optional control
Specifications
& Tests
• Unless otherwise stated, flange models are suitable for classes A & B of DW144, with spigot models suitable for classes A, B & C of DW144
• Independent performance tests for
pressure drop. Test report 166 refers
• Independent performance tests for casing leakage. Test report 167 refers
• Conforms to HVCA Specification DW144
as relevant
• Conforms to Eurovent 2/2 as relevant

Standard Aluminium Blade (left) or optional stainless steel blade (right).
The 50mm
wide extruded aluminium airfoil blades are fitted to 12.5mm diameter spindles
for robust, low-friction movement. The option of grades 316 or 430 stainless steel blades are available to order. Stainless steel blade option available in 63.5mm width only.
Fitted as standard
to the blades are end caps to negate noise generation, with parallel blade
operation available to order.