Ultra high shut off. Excellent resistance to corrosion. Does not act like a cold bridge. Super smooth cog system, entirely protected from airstream.
HVC's new uPVC Volume Control Damper really is a revolution in volume control damper design.
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The capabilities shown above really are desirable in any situation where volume control systems are required. However, it is in the worlds of natural ventilation and marine ventilation where uPVC Volume Control Dampers are of most benefit.
Natural ventilation systems require high efficiencies throughout, a leaky volume control damper is therefore a severe detriment to overall performance. Our uPVC VCD has been proven to not leak AT ALL at pressures below 25Pa. In the world of marine ventilation also, the fact that uPVC simply does not corrode is of massive advantage, especially at sea where the presence of high moisture levels in the air as well as salt makes for a very hostile environment for any metallic equipment.
A principal requirement during development has been to have an ultra low leakage rate when the damper is closed, however the results after testing astounded even us. Independent tests show that our uPVC Volume Control Damper has been proven to have zero leakage at below 25Pa, and even when leakage does occur it is incredibly low. All this from a damper designed to open and close multiple times a day during normal operation.
Corrosion resistance is also exceptional, far exceeding the abilities of galvanised steel and even stainless steel in corrosive atmospheres. In fact the only metal parts contained within the damper are screws and blade reinforcing bars. Both of which are entirely protected from the airstream; and that is not the only advantage provided by uPVC. By not being an effective conductor of heat, uPVC does not act like a cold bridge, keeping warmth inside, and cold outside.
uPVC Volume Control Dampers integrate perfectly with a wide range of HVC products. In natural ventilation systems uPVC VCDs can work in partnership with high performance louvres and internal grilles, and a myriad of control options mean centralised or localised adjustment methods are both available.
| UPVC-VCD | |
| Application | Natural Ventilation, Marine Environment |
| Recommended Use | Volume Control |
| Overall Dimension | Nominal + 85mm |
| Overall Depth | 130mm |
| Standard Frame | 40mm Flange |
| Standard Finish | White |
| Material | uPVC |
| Blade Type | Eccentric Aerofoil |
| Standard Control Option | Actuators, Locking Quadrants etc |
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Actuators The ultra high seal needs a slow, high torque operation for best performance. Actuators facilitate this best, and with a range of standard Belimo and specialist units available, you can be certain of finding the best one. |
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Manual Control Options Cast aluminium locking quadrants with their integrated visual position indicator are the only hand control option we recommend for use with uPVC Volume Control Dampers |
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Spigots If the standard flanged option is not suitable, square, circular or flat oval spigots can be fitted |
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Penthouse Louvres
Combine your uPVC Volume Control Damper with a Penthouse Louvre for exceptional natural ventilation system performance |
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Standard Louvres
We are able to manufacture ready made units combining a standard louvre like a WL50 with a uPVC VCD. A ready made natural ventilation unit |
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Interior Grille
A wide range of interior grilles are suitable for use with uPVC Volume Control Dampers. Linear Bar Grilles are just one commonly used type |