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Roof fans WDc/s
Number of products : 78
Roof fans WDc/s
WDc/s is the main range of roof fans Metalplast ed horizontal air release (letter s in symbol). Available in eight sizes from ø125 to ø560 mm, with yields from 76 to close to 18,000 m3/h. It is used for ventilation of exhaust halls, warehouses, agricultural facilities and public buildings.
The level of the ejection directs the air to the sides just above the roof – the design is lower than in vertical release versions and less exposed to rain blowing into the interior.
Key features
- A case of hard PVC resistant to UV radiation and atmospheric conditions.
- Engine in isolation class F, degree of protection IP 55 / IP 54.
- Operating temperature to +40 °C, in special execution to +60 °C.
- Permissible dusting of extruded air to 0,3 g/m3.
- Power 230 V or 400 V 50 Hz, depending on the size and speed.
- Mounting on a roof base with a flange or on a prepared pedestal.
Sizes and parameters
| Size | øD [mm] | øA [mm] | H [mm] | Max capacity [m3/h] | Mass [kg] |
|---|---|---|---|---|---|
| WDc/s-12,5 | 125 | 320 | 320 | 702 | 5,5 |
| WDc/s-16 | 160 | 418 | 410 | 612 | 9 |
| WDc/s-20 | 200 | 476 | 445 | 1150 | 10,5 |
| WDc/s-25 | 250 | 548 | 485 | 2304 | 13,5 |
| WDc/s-31,5 | 315 | 660 | 590 | 4500 | 22 |
| WDc/s-40 | 400 | 802 | 667 | 6660 | 33 |
| WDc/s-50 | 500 | 976 | 834 | 12 420 | 70 |
| WDc/s-56 | 560 | 1100 | 955 | 17,892 | 86 |
øD – connection connector, øA – base flange, H – total height. Max capacity for the highest turnover in the range.
Options available
- Speed – 700, 950, 1450 or 2900 rpm. Lower rotations are lower noise and power consumption, higher – higher efficiency and tension.
- Tension – 230 V (sizes up to 31,5) or 400 V.
- Temperature – standard version +40 °C, high temperature +60 °C.
- Low rotor (N) – e.g. WDc/s-12,5 N, WDc/s-16 N. Reduced flow characteristics for less-demand installations.
How to Choose Size
- Calculate required performance: space volume × times the exchange per hour (halls usually 4–8).
- Estimate the resistance of the installation – the fan must overcome them, otherwise the real flow will be much lower than the catalogue.
- Select the size that covers this point and check the øD diameter under the existing channel.
- Choose rotations and voltages – in continuous operation the free-turn version usually comes out cheaper in operation.
Applications
Production halls, workshops and warehouses • livestock buildings and dryers • laboratories, hospitals, schools and swimming pools • collective catering kitchens • dusty air exhaust up to 0.3 g/m3.
Frequently Asked Questions
How is WDc/s different from WDk?
WDc/s has a horizontal ejection, vertical wDk. The horizontal protects the roof and gives a lower shape, the vertical brings the air higher – better with annoying smells.
What does the letter N mean when you're in size?
Low rotor – same housing and mounting dimensions, but lower flow characteristics.
What roof base to choose?
With a flange with a partition diameter corresponding to øDo dimension of a given size. The base seales the passage through the roof and suppresses vibration.
Do you need a service switch?
Yes, recommended – with motor protection selected to the rated current of a given variant.
When to choose the version to +60 °C?
In the drains from above heating equipment, in drying rooms and everywhere where the air is ventilated significantly warmer than the environment.
Don't you know which size to choose? Specify the cup or required performance, diameter and length of the channel, air temperature and available voltage – we will choose the variant and confirm the completion date.
Manufacturers
