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J| Style | Model | Mounting Position | Flange Type | Flange Width | Rough Opening Length | Rough Opening Width | Overall Width | Number Of Panels | Rough Opening Diameter | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 50K329 | £348.09 | |||||||||
| A | 50K328 | £860.62 | |||||||||
| A | 60P625 | £790.84 | |||||||||
| A | 50K327 | £723.45 | |||||||||
| A | 50K332 | £996.89 | |||||||||
| A | 859-30-6001-5 | £924.18 | |||||||||
| A | 859-11-6001-5 | £420.99 | |||||||||
| B | 3TZ50 | £50.26 | |||||||||
| B | 4HX71 | £292.43 | |||||||||
| C | 53DR14 | £268.50 | |||||||||
| D | 53DR10 | £81.07 | |||||||||
| C | 53DR12 | £90.05 | |||||||||
| E | 4HX33 | £64.55 | |||||||||
| D | 53DR11 | £116.00 | |||||||||
| F | 53DR16 | £88.46 | |||||||||
| C | 53DR13 | £130.92 | |||||||||
| G | 53DR15 | £423.28 | |||||||||
| H | 53DR19 | £415.57 | |||||||||
| F | 53DR17 | £132.41 | |||||||||
| I | 53DR20 | £90.78 | |||||||||
| J | 53DR18 | £273.61 |
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 .
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AAAADayton 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.
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B| Style | Model | For Nominal Duct Diameter | Max. Air Velocity | Rough Opening Length | Rough Opening Width | Overall Width | Overall Height | Rough Opening Dia. | Fits Fan Dia. | Price (inc. VAT) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 3HHL4 | £40.54 | |||||||||
| A | 3HHL5 | £67.17 | |||||||||
| A | 3HHL6 | £81.94 | |||||||||
| A | 3HHL7 | £125.09 | |||||||||
| A | 3HHL8 | £141.55 | |||||||||
| B | 3HHL9 | £177.65 | |||||||||
| B | 3HHN1 | £195.02 | |||||||||
| B | 3HHN2 | £223.24 | |||||||||
| B | 6WRK7 | £262.21 | |||||||||
| B | 3HHN3 | £314.23 | |||||||||
| B | 6WRK8 | £364.74 | |||||||||
| B | 6WRK9 | £418.85 | RFQ
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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.
ABDayton 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.
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| Model | Item | Price (inc. VAT) | |
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| SA36 | CR3WVU | £113.99 |
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.