FGD
Fire & Gas Dampers
Dimensional Limits
The minimum damper size is 150 mm wide x 150
mm high. For a damper manufactured as a single
300
frame for a maximum height of 2452 mm the maxi-
mum width is 3350 mm or for a maximum width of
2175 mm the maximum height is 3728 mm.
Air flow in
either direction
250
Access required for
Flange
Cabling/Pipework
Typ
hook-up
Duct
Height
Access required for
Removal of Cover
and Controls
Enclosure
Alternative location for
Pneumatic/Electric
Flange
Connections
Duct Width
70
Flange
Per formance
Ordering
Full aerodynamic performance data is presented
Quantities, control requirements and other special
below and is based on tests concluded.
requirements to be stated separately.
Duct Width 500W
Type FGD
50
Duct Height 300H
Material 316L
40
Case Depth 300D
Case Thickness 3.0
30
Type Wozair:
High Integrity Fire
20
Case Material:
Stainless Steel
1.4301
= 304
10
(SS304)
(SS304L) = 304L
Low Carbon
1.4307
Low Carbon
1.4404
(SS316L) = 316L
7
8
9
10
11
12
13
14
Mild Steel Sheet
Duct air velocity (m/s)
Pre-Galvanised
FeP02 nac = GSS
Galvanised after Manufacture = GAM
Case Thickness: 3 - 10mm upwards
Nominal
Clear inside duct dimensions
Duct Size:
`Quote' (Width x Height)
Total Pressure Loss (PT)
Order Code Example:
FGD/316L/3.0/500W/300H/300D
This is the difference in pressure measured across
the fire damper, when the blades are fully open.