HDT/6-355 Ex explosion-proof fan

Cabinet

It is made of galvanized steel sheet with aluminium inner ring, brackets are made of aluminium sheet. The cabinet is coated with B-0920 aluminium paint.

Running wheel

is cast in solid Al alloy with a special wing profile and is coated with a red lacquer with high heat resistance. The impeller is statically and dynamically balanced. Operating temperature -20 ºC to +40 ºC.

Motor

Three phase 230/400 V-50 Hz motors with blue lacquer finish, available in 4, 6 and 8 pole versions. Ball bearings with grease packing for life. IP55 protection, insulation class F.

Speed control

Fans cannot be electrically or electronically controlled as standard. PTC motors with thermal protection can be supplied on request, regulated by recommended frequency converters.

Rotation direction

Air flow from motor to impeller as standard, reverse (impeller to motor) on request for sizes 450 and 560.

Clamps

is located on the engine. The condenser is supplied separately and must be installed outside the explosion-proof environment.

Noise

The sound pressure, as listed in the table, is measured in the free sound field at a distance of 1.5 m.

Accessories

- ACOP Ex flexible coupling
- WSK Ex plastic self-weighting louvre
- KAA Ex flexible cuff
- MS Ex motor protection

Instructions

Inquire about special designs and currently supplied special accessories. The values of In, Ia/In and Te indicated on the fan label are decisive for the fitting of the safety elements and thus the safe operation of the fan. These values must be checked carefully after delivery of the fan.