Backdraft Roof Dampers

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DAYTON -

Damper Backdrafts

Dayton damper backdrafts are suitable for use in ductwork, roof curbs or wall collars when using a fan or power roof ventilator. The blades of these dampers are provided with a felt seal on the leading edge for superior protection from the weather and are spring supported to permit blades to open comfortably. Choose from a range of these damper backdrafts, available in 1.375 and 1.5-inch widths.

StyleModelFlange WidthFrame MaterialMaterialMax. VelocityPrice (inc. GST)
A4HX721 1/2"Aluminum , Steel16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm SGD 83.48
A5NKN41.5"-16-gauge Extruded Aluminum Frame, Galvanized Steel Tie Rods and Stainless Steel Hardware2250 fpm SGD 187.54
A5NKN51.5"-16-gauge Extruded Aluminum Frame, Galvanized Steel Tie Rods and Stainless Steel Hardware2250 fpm SGD 227.78
A5NKN61.5"-16-gauge Extruded Aluminum Frame, Galvanized Steel Tie Rods and Stainless Steel Hardware2250 fpm SGD 291.32
B4HX731.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm SGD 113.82
A4HX741.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm SGD 124.35
A4HX751.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm SGD 140.68
A4HX761.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm SGD 147.56
A4HX771.375"-16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpm SGD 155.36
DAYTON -

Roof Mounts

Dayton damper roof mounts are isolation dampers or backdraft dampers that provide airflow in one direction and stop reverse airflow. They are ideally used with belt-drive centrifugal roof and wall ventilators. They are provided with felted-edge aluminium louvres, stainless steel pivot pins and nylon bushings. Choose between 2000 and 2250 FPM max. velocity variants of these roof mount dampers, available on Raptor Supplies .

StyleModelMax. VelocityPrice (inc. GST)
A4HX642000 fpm SGD 97.07
A4HX652000 fpm SGD 118.85
A4HX662000 fpm SGD 138.33
B4HX672250 fpm SGD 190.24
A4HX682250 fpm SGD 218.49
A4HX692250 fpm SGD 303.89
A4HX702250 fpm SGD 379.71
DAYTON -

Backdraft Exhaust Dampers

Dayton vertical / horizontal mounting dampers are suitbale for use in ductwork, roof curbs and wall collars. They feature G-90 galvanized frame sand aluminium blades for durability and strength. These dampers also comprise mill-finish aluminium louvers, nylon bushings and stainless steel pivot pins and rivets.

StyleModelPrice (inc. GST)
A2FTU9 SGD 116.61
A2FTV7 SGD 167.41
A2FTW8 SGD 79.07
A2FTX4 SGD 80.93
A2FTX5 SGD 99.31
B5NKN7 SGD 816.85
B5NKN8 SGD 749.04
B5NKN9 SGD 792.65
DAYTON -

Backdraft Damper Vertical/horizontal Mounting

Dayton backdraft dampers are designed for regulating airflow in one direction and preventing reverse airflow in exhaust or intake HVAC systems. These units feature galvanised steel frames with aluminium blades that allow air to pass through the exhaust ducts while preventing unwanted flow of air into the facility when the exhaust fans are off. These blades also have a felt seal on the leading edge to provide greater protection from weather conditions and offer quiet operation. They come with pre-punched conduit holes for easy installation and can be mounted in both vertical or horizontal positions. Choose from a wide range of these backdraft dampers, available in 7-3/4 to 61-3/4 inch heights.

StyleModelPrice (inc. GST)
A3HHL4 SGD 69.21
A3HHL5 SGD 115.83
A3HHL6 SGD 141.39
A3HHL7 SGD 215.78
A3HHL8 SGD 244.17
B3HHL9 SGD 306.02
B3HHN1 SGD 335.93
B3HHN2 SGD 384.55
B3HHN3 SGD 541.34
B6WRK7 SGD 451.63
B6WRK8 SGD 624.40
B6WRK9 SGD 710.94
AIRMASTER FAN -

Roof Mount Dampers

StyleModelPrice (inc. GST)
A32452 SGD 93.43
RFQ
A32453 SGD 104.69
RFQ
A32454 SGD 146.34
RFQ
StyleModelPrice (inc. GST)
A32455 SGD 208.25
RFQ
A32456 SGD 159.85
RFQ
AIRMASTER FAN -

Gravity Dampers

StyleModelPrice (inc. GST)
A32457 SGD 317.44
RFQ
A32458 SGD 346.71
RFQ
A32518 SGD 198.12
RFQ
StyleModelPrice (inc. GST)
A23171 SGD 33.77
RFQ
A23178 SGD 77.67
RFQ
A23165 SGD 15.76
RFQ
A23166 SGD 20.26
RFQ
A23172 SGD 51.78
RFQ
DAYTON -

Backdraft Dampers

StyleModelFlange WidthMaterialMax. VelocityTypePrice (inc. GST)
A53DR15---- SGD 731.88
RFQ
B859-11-6001-5---- SGD 691.11
RFQ
C53DR16---- SGD 152.90
RFQ
D53DR18---- SGD 473.20
RFQ
E53DR11---- SGD 198.02
RFQ
E53DR10---- SGD 139.50
RFQ
C53DR17---- SGD 228.92
RFQ
F53DR12---- SGD 155.77
RFQ
G53DR19---- SGD 718.72
RFQ
B50K328---- SGD 1469.19
RFQ
B50K329---- SGD 594.24
RFQ
B60P625---- SGD 1350.07
RFQ
H53DR20---- SGD 155.59
RFQ
F53DR14---- SGD 462.44
RFQ
F53DR13---- SGD 225.73
RFQ
B859-30-6001-5---- SGD 1517.17
RFQ
B50K332---- SGD 1701.83
RFQ
B50K327---- SGD 1235.03
RFQ
I4HX711"G-90 Galvanized Steel Frame, Aluminum Blades, Stainless Steel Pivot Pins, Nylon Bushings and Galvanized Steel Tie Rods.2250 fpmRoof Mount, Exhaust SGD 496.34
I3TZ501"G-90 Galvanized Steel Frame, Aluminum Blades, Stainless Steel Pivot Pins, Nylon Bushings and Galvanized Steel Tie Rods.2000 fpmRoof Mount, Exhaust SGD 85.32
J4HX331.375"16-gauge Extruded Aluminum Frame, Aluminum Blades, Galvanized Steel Tie Rods and Stainless Steel Hardware2000 fpmWall Mount, Supply SGD 112.62

Backdraft Roof Dampers

Backdraft roof dampers allow air to flow in one direction, out of the house and prevent reverse flow of air. Raptor Supplies offers a range of these backdraft dampers from brands like Airmaster Fan and Dayton. These backdraft dampers are ideal for duct systems and offer easy installation. They are used with roof and wall ventilators to close off systems when they are not in use. Choose from a broad range of these Backdraft roof dampers, available in 1, 1.375 and 1.5 inch flange widths.

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