Depureco DV AIR 800 Z22

The filter unit is EU-type approved under ATEX directive 2014/34/EU for operation in external Zone 22 (dust, low risk). 'Ex h' is the constructional safety type per EN ISO 80079-36/37 -- note that this is Ex h alone (without the 'tc' suffix that CVS Z22 side-channel blowers carry). 'IIIB' covers non-conductive dust (paper, fibre, grain etc.). 'T140' is the maximum surface temperature in operation (140 degrees C). 'Dc' is the EPL code for Zone 22. The cartridges are of antistatic polyester -- a critical detail for ATEX operation, as it dissipates electrostatic charge and thus eliminates spark risk.

Depureco DV AIR 800 Z22 is a **passive filter unit** -- it has no motor and cannot draw air itself. Its role is to clean the air from a connected vacuum unit (CVS Z22 side-channel or CVS ROOTS Z22) through 4 class M cartridges (340,000 cm² antistatic polyester). Air flow comes from the vacuum unit, passes through the cartridges, and the deposited dust is cleaned by the SP-Reverse jet pulsejet system. The catalogue note is explicit: 'DV AIR must be mandatorily combined with a suction unit'. The discharge (1700 max recommended airflow) leaves the filter unit via the Ø250 mm flange and must be routed to a DISCHARGE SYSTEM (rotary valve, butterfly, big-bag frame etc.) for final dust collection.

SP-Reverse jet is an automatic pulsejet cleaning system. Compressed air pulses (typically 5-6 bar) are fired into the cartridges from the back in short intervals -- this releases the dust cake from the surface, and it falls into the hopper and onwards to the connected discharge system. Cleaning is differential-pressure driven (starts when pressure drop exceeds threshold, stops when it drops back), so the filter always keeps its efficiency without over-cleaning or wasted air. An SP cleaning system control option can be added for automatic management.

The recommended matches are the CVS Z22 range (3D ATEX side-channel blower) and the CVS ROOTS Z22 range (3D ATEX Roots pump). The choice depends on your system's vacuum needs and duty profile: side-channel gives moderate vacuum (200-380 mBar) at various flows, while Roots holds constant high vacuum (490 mBar). The max recommended flow on this unit is 1700 m3/h -- choose a vacuum unit with matching or lower flow to stay within the filter's capacity. We help with sizing based on pipe lengths, take-off points and dust characteristics.

The unit is delivered as a complete filter module on a telescopic frame. The customer must ensure: (1) installation space with ceiling height matching the frame (open 3500 / compact 2175 mm); (2) connection to the connected vacuum unit via the Ø130 mm inlet; (3) DISCHARGE SYSTEM downstream on the Ø250 mm flange (rotary valve, butterfly, big-bag frame etc. -- see our accessories page); (4) compressed air supply (typically 5-6 bar) to the SP-Reverse jet cleaning system; (5) grounding and ATEX documentation for Zone 22 operation; and (6) planned access to the filter inspection door for cartridge checks and replacement.

Yes. We offer both installation and commissioning of central filter solutions and mobile systems, and ensure the equipment is installed correctly, documented and adjusted to your environment. For DV AIR the installation includes: matching with vacuum unit, connection of DISCHARGE SYSTEM, compressed-air supply for SP cleaning, ATEX documentation and grounding, and commissioning. We also offer service agreements with planned filter inspections, cartridge replacement, spare-parts access and ongoing ATEX review. See 'About Particulair' for geographic coverage.