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Operating temperature
0 to 80 °C
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Maximum differential pressure
5000 Pa
Air leakage with back pressure to EN 1751, class 4, Maximum differential pressure: 5000 Pa, Differential pressure can be adjusted from 50 1000 Pa (B > 600 mm: 600 Pa max.), Blades open when the maximum differential pressure is exceeded and close automatically when the pressure drops, Blades made of aluminium, casing made of galvanised steel