BSB Dampers
Air, Fire and Smoke Control
Home  :  Product Range  :  FD Series  :  Elements of Construction
BSB Engineering Services Ltd.
Unit 56, Trinity Trade Centre,
Mill Way, Sittingbourne,
Kent ME10 2PD, United Kingdom
Tel: +44(0)1795 422609
Fax: +44 (0)1795 429543
Email:
For purchase orders and order related enquiries:
orders@bsb-dampers.co.uk

For pricing, technical and general customer service enquiries:
enquiries@bsb-dampers.co.uk

FD Series - Elements of Construction

1  Fusible Link Bracket
The Fusible Link Bracket is manufactured from galvanised steel as standard.
2  Fusible Link
Blades are held in the open position by a straight bar link (fitted as standard) rated at 72°C (162°F) with a formed reinforcing swage and two location holes.
  • The fusing alloy is to BS 219. The brass is to BS 2870.
  • BSB can supply the FD Series Fire Damper with the alternative rated fusible link for higher temperature applications as follows:
    95°C (202°F),  124°C (260°F),  145°C (286°F),  182°C (360°F).
3  Casing
Formed to provide two continuous internal flanges not less than 30mm.
Casing and components not less than 1.2mm thick cold reduced hot dipped galvanised mild steel to BS EN 10346 Grade DX51D + Z275.
Casing material options to order are Ferritic 430 type 1.4016 grade or Austenitic 316 type 1.4401 grade to BS EN 10088-2.
4  Blades
Formed to provide a continuous interlocking hinge extending the full length with dual swages providing maximum strength and rigidity. Nominally 0.7mm (22swg) thick cold reduced hot dipped galvanised mild steel to BS EN 10346 Grade DX51D + Z275.
Blade material options to order are Ferritic 430 type 1.4016 grade or Austenitic 316 type 1.4401 grade to BS EN 10088-2.
5  Pull Ring
To aid resetting of the damper blade pack, the bottom closing blade will be fitted with a single pull ring centrally to the width for dampers up to and including 500mm wide or 500mm diameter. For all dimensions above this, two equally spaced pull rings will be fitted.
6  Locking Ramp
Dual locking ramps ensure positive closing action of the blade pack in horizontral or vertical installations.
7  Closure Spring
Dampers are supplied with two constant force coil springs exerting a pull of not less than 35N, with one end fixed to the leading blade by rivets and the coil fitted on the spindle of the locking ramp. The spring is manufactured from Grade 302 stainless steel to BS 5770, 4 hard
8  Gate Latch
Optional mechanism for electrical release when required. Rated 72°C (162°F), alternative ratings available as per standard straight bar link.
9  Paint
All welds, seams and joints are sprayed with commercial grade aluminium paint.
 Side Seals
0.20mm gauge 301 stainless steel to BS EN 10088-2, available to order.
 Control Options
A range of direct acting or remote control release options are available to operate in conjunction with the gate latch release.
 Microswitches
All BSB FD Fire Dampers are available with factory fitted single or double pole microswitches as optional extras.

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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