Backdraft Roof Dampers

Filter

StyleModelMPNPrice
A2316523165€10.08
RFQ
A2316623166€12.96
RFQ
A2317123171€21.60
RFQ
A2317223172€33.12
RFQ
A2317823178€49.68
RFQ
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.

StyleModelFrame MaterialFree AreaRough Opening WidthOverall WidthRough Opening LengthOverall HeightDamper SizeFits Fan Dia.Price
A4HX73Aluminum0.4 sq. ft.10"12 3/4"10"12 3/4"10" x 10"10"€89.37
B4HX74Aluminum0.7 sq. ft.12 1/2"14 3/4"11 1/2"14 3/4"12" x 12"12"€97.72
B4HX75Aluminum0.9 sq. ft.13 1/2"15 3/4"12 1/2"15 3/4"13" x 13"12"€110.62
B4HX76Aluminum0.9 sq. ft.14 1/2"16 3/4"13 1/2"16 3/4"14" x 14"12"€116.35
B4HX77Aluminum1.2 sq. ft.15 1/2"17 3/4"14 1/2"17 3/4"15" x 15"12"€122.42
B5NKN4Aluminum1.7 sq. ft.17 1/2"19 3/4"17 1/2"19 3/4"17" x 17"16"€148.27
B5NKN5Aluminum2.5 sq. ft.20 1/2"22 3/4"-22 3/4"20" x 20"20"€147.16
B5NKN6Aluminum3.8 sq. ft.25 1/2"27 3/4"25 1/2"27 3/4"25" x 25"24"€189.63
B4HX72Galvanized Steel0.3 sq. ft.8"10 3/4"8"10 3/4"8" x 8"8"€65.55
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 .

StyleModelOverall SizeMax. Air VelocityFree AreaRough Opening LengthRough Opening WidthOverall WidthOverall HeightRough Opening Dia.Price
A4HX6414" x 14"2000 FPM0.7 sq. ft.11 1/2"12 1/2"14"14"12 1/2"€76.36
A4HX6517" x 17"2000 FPM1.1 sq. ft.14 1/2"15 1/2"17"17"15 1/2"€93.42
A4HX6621" x 21"2000 FPM1.9 sq. ft.18 1/2"19 1/2"21"21"19 1/2"€89.36
B4HX6725" x 25"2250 FPM2.9 sq. ft.22 1/2"23 1/2"25"25"23 1/2"€124.83
A4HX6829" x 29"2250 FPM4.1 sq. ft.26 1/2"27 1/2"29"29"27 1/2"€141.82
A4HX6937" x 37"2250 FPM7.1 sq. ft.34 1/2"35 1/2"37"37"35 1/2"€197.49
A4HX7041" x 41"2250 FPM8.9 sq. ft.38 1/2"39 1/2"41"41"39 1/2"€248.02
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.

StyleModelFree AreaRough Opening LengthRough Opening WidthOverall WidthOverall HeightRough Opening Dia.Fits Fan Dia.Mounting LocationPrice
A2FTW80.4 sq. ft.10"10"9 3/4"9 3/4"10"10"Ceiling, Wall€62.04
A2FTX40.9 sq. ft.12"12"11 3/4"11 3/4"12"12"Ceiling, Wall€63.55
A2FTX51 sq. ft.14"14"13 3/4"13 3/4"14"12"Ceiling, Wall€75.92
A2FTU92.2 sq. ft.18"18"17 3/4"17 3/4"18"18"Ceiling, Wall€91.49
A2FTV73.6 sq. ft.24"24"23 3/4"23 3/4"24"24"Ceiling, Wall€108.12
B5NKN721.5 sq. ft.56"56"55 3/4"55 3/4"56"54"Ceiling, Wall€532.03
B5NKN821.9 sq. ft.60"60"59 1/2"59 1/2"60"60"Ceiling, Wall€493.83
B5NKN929.5 sq. ft.64"64"63 3/4"63 3/4"64"60"Ceiling, Wall€524.66
SOLER & PALAU -

Backdraft Dampers

StyleModelFrame MaterialBlade MaterialFlange WidthFree AreaRough Opening LengthRough Opening WidthOverall WidthOverall HeightPrice
ACAR400Galvanized SteelAluminum1"191.8 sq. in.7 3/4"15 3/5"15 7/8"7 5/8"€87.25
ACAR150Galvanized SteelAluminum1"24.9 sq. in.3"5.9"5 7/8"3 1/2"€27.15
BMCA-200SteelGalvanized Steel1 3/8"47.2 sq. in.7 5/8"7 3/5"8 3/8"5 1/8"€149.92
BMCA-150SteelGalvanized Steel1 3/8"26 sq. in.6 1/4"6.3"6 1/4"4 3/4"€92.77
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.

StyleModelMax. Air VelocityRough Opening LengthRough Opening WidthOverall WidthFree AreaOverall HeightRough Opening Dia.Fits Fan Dia.Price
A3HHL62000 FPM20"20"19 3/4"2.5 sq. ft.19 3/4"20"20"€110.82
B6WRK82000 FPM50"50"49 3/4"16.2 sq. ft.49 3/4"50"48"€406.37
A3HHL52000 FPM16"16"15 3/4"1.6 sq. ft.15 3/4"16"16"€91.11
B6WRK72000 FPM42"42"41 3/4"10.9 sq. ft.41 3/4"42"42"€292.26
A3HHL82000 FPM30"30"29 3/4"6 sq. ft.29 3/4"30"30"€157.75
A3HHL42000 FPM8"8"7 3/4"-7 3/4"8"8"€54.95
A3HHL72000 FPM28"28"27 3/4"4.9 sq. ft.27 3/4"28"28"€139.37
B6WRK92000 FPM62"62"61 3/4"27 sq. ft.61 3/4"62"60"€469.24
B3HHN22250 FPM40"40"39 3/4"10.2 sq. ft.39 3/4"40"40"€248.91
B3HHN32250 FPM48"48"47 3/4"14.7 sq. ft.47 3/4"48"48"€350.33
B3HHN12250 FPM36"36"35 3/4"8.2 sq. ft.35 3/4"36"36"€217.58
B3HHL92250 FPM34"34"33 3/4"7.7 sq. ft.33 3/4"34"34"€198.04
AIRMASTER FAN -

Roof Mount Dampers

StyleModelMPNPrice
A3245232452€59.76
A3245332453€66.96
RFQ
A3245432454€93.60
RFQ
StyleModelDamper SizeShapePrice
A3245623 3/4"Square€102.24
A3245529"Square€133.20
AIRMASTER FAN -

Gravity Dampers

StyleModelDamper SizeShapePrice
A3251837"Square€126.72
A3245839 3/4"Square€221.76
A3245744"Square€203.04
DAYTON -

Backdraft Dampers

StyleModelMounting LocationMounting PositionFrame MaterialMax. Air VelocityFlange TypeFlange WidthFree AreaRough Opening LengthPrice
A50K327--------€863.68
A60P625--------€964.62
A50K329--------€445.24
A50K332--------€1,190.11
A50K328--------€1,027.42
B4HX71CeilingHorizontalGalvanized Steel2250 FPMRear Flange1"15.4 sq. ft.49 1/2"€326.99
B3TZ50CeilingHorizontalGalvanized Steel2000 FPMRear Flange1"0.4 sq. ft.10"€70.70
C3HHR1WallVerticalAluminum2500 FPMRear Flange1 1/2"1.4 sq. ft.17"€105.42
D53DR18WallVerticalAluminum2500 FPMFront Flange1 1/2"8.5 sq. ft.39 1/2"€302.68
E53DR15WallVerticalAluminum2500 FPMRear Flange1 1/2"14.8 sq. ft.51 1/2"€468.12
F53DR14WallVerticalAluminum2500 FPMRear Flange1 1/2"8.5 sq. ft.39 1/2"€296.96
F53DR13WallVerticalAluminum2500 FPMRear Flange1 1/2"2.5 sq. ft.22 1/2"€144.80
G53DR16WallVerticalAluminum2500 FPMFront Flange1 1/2"0.9 sq. ft.14 1/2"€118.83
H53DR19WallVerticalAluminum2500 FPMFront Flange1 1/2"14.8 sq. ft.51 1/2"€459.63
I53DR11WallVerticalGalvanized Steel2500 FPMRear Flange1 1/2"2.5 sq. ft.22 1/2"€125.28
I53DR10WallVerticalGalvanized Steel2500 FPMRear Flange1 1/2"0.9 sq. ft.14 1/2"€106.37
G53DR17WallVerticalAluminum2500 FPMFront Flange1 1/2"2.5 sq. ft.22 1/2"€146.44
F53DR12WallVerticalAluminum2500 FPMRear Flange1 1/2"0.9 sq. ft.14 1/2"€120.97
J4HX33WallVerticalAluminum2250 FPMFront Flange1 1/2"0.6 sq. ft.10 1/2"€88.66
K4GY95WallVerticalGalvanized Steel2500 FPMRear Flange1 1/2"16.7 sq. ft.54"€424.67
L53DR20WallVerticalGalvanized Steel2000 FPMRear Flange1 1/2"2.5 sq. ft.22 1/2"€97.27
HESSAIRE -

Shutter, 36 Inch Size, Aluminum

ModelItemPrice (ex. VAT)
SA36CR3WVU-
RFQ

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.