DVV-Ex Roof fans certified according to ATEX are designed to exhaust potentially explosive atmospheres from explosion hazardous areas.
Octagonal casing and motor cover, made from sea water resistant aluminium, with a bird protection guard. Base frame is made from ZM (Zinc-Magnesium) coated steel, with a copper inlet cone.
Flange motors in explosion protection "flameproof enclosure" - Ex d.
Radial welded impeller with backward curved blades manufactured from steel.
Speed controllable via frequency converter.
Terminal box in explosion protection "increased safety" - II 2G Ex e IIC T5/T6 is mounted on the casing.
Motor protection by integrated PTC thermistors.
Marking of the serial equipped fan (c = constructional protection): II 2G c IIB T4.
Suitable for exhaust from zones 1 or 2, field of application II, for gases of groups A and B and temperature classes T1 to T4..