Polyvent 621
Supply and exhaust grilles and hoods
Fittings
Supply and exhaust air disk valves and diffusers
Clamps
Connector with backdraft damper for round ducts
| Parameter | Value | Unit | |
|---|---|---|---|
Ø102; 114; 121; 127; 133; 140; 152; 165; 182; 203; 228; 254; 304 | mm | ||
specially designed polyurethane film (450 μm) | |||
steel spring, 0.8-2 mm thick | |||
-21...+110 | оС | ||
6000 | mm | ||
6000 | mm | ||
30 | m/s | ||
3000 22,59 306 12,06 0,435 | Pa mm Hg mm Aq in.wg psi | ||
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