Depureco FILTER HOPPER 570

A pre-separator is a passive filter unit placed between the suction point and the main filter unit. Its role is to **catch the coarse particles first**, so the main filter unit (e.g. DV AIR or DV AIR WB) only has to handle the fine residual dust. This gives three concrete benefits: (1) the main filter's cartridges last longer (less load), (2) pressure drop in the plant is lower and more constant (less pulsejet cleaning needed), and (3) the bulk of the dust is already collected at the pre-separator level where it is easier to handle. The catalogue is explicit: pre-separators **must be mandatorily combined with a suction unit** (CVS Z22 or CVS ROOTS Z22).

Depureco FILTER HOPPER 570 is a passive pre-separator with cartridge filter class M (120,000 cm² antistatic polyester). Discharge is via an **open Ø250 flange** and requires a separate DISCHARGE SYSTEM downstream (rotary valve, butterfly or big-bag frame -- see our accessories page). This configuration suits larger dust volumes where automatic, continuous discharge is required. The vacuum unit's air flow enters via the Ø100 mm inlet (on the vacuum unit side) or Ø100 mm (on the vacuum spot side) and passes through the cartridge filter area. SP-Reverse jet pulsejet cleaning is **included** on this model.

Cartridge filters have significantly higher filter surface area per volume than star filters -- this gives lower air velocity over the filter face, lower pressure drop and longer life at the same dust load. For this reason, the catalogue chose a cartridge filter at this size (and on all non-bin variants), where flow and dust volume are expected to be greater. SP-Reverse jet pulsejet cleaning is **included** on this model to keep the filter clean under continuous operation.

No. The catalogue lists this family of pre-separators WITHOUT ATEX marking -- they are thus non-ATEX and must not be used in explosive atmospheres (Zone 20/21/22). If your plant requires ATEX operation, the pre-separator solution must be specifically engineered (and combined with DV AIR Z22 / DV AIR WB Z22 as the main filter). The antistatic polyester media reduces electrostatic buildup but does not replace ATEX type approval.

The recommended matches are the CVS Z22 range (side-channel blower) and the CVS ROOTS Z22 range (Roots pump) -- these are the same two vacuum units that DV AIR and DV AIR WB are sized for. Choice of vacuum unit depends on vacuum needs, plant length and duty profile. We help with sizing based on pipe lengths, take-off points and dust characteristics. Note that pre-separators are placed **upstream** of the main filter unit, so they share the vacuum unit's flow and vacuum with the main filter -- the sizing must account for the combined pressure drop.

The unit is delivered as a complete module on a fixed frame. The customer must ensure: (1) installation space with ceiling height for 1928 mm (footprint 570 x 570 mm); (2) connection on the vacuum unit side (Ø100 mm) and on the vacuum spot side (Ø100 mm); (3) connection to a separate DISCHARGE SYSTEM on the discharge flange Ø250 mm (see accessories page); (4) compressed air supply (typically 5-6 bar) to the SP-Reverse jet cleaning system; (5) correct mechanical anchoring and signage (not ATEX-approved); and (6) planned access to the filter inspection door for filter checks and replacement.

Yes. We offer both installation and commissioning of central filter solutions and mobile systems. For pre-separators the installation includes: matching with vacuum unit and main filter unit, connection of DISCHARGE SYSTEM (see accessories page), compressed-air supply for SP cleaning, and commissioning. We also offer service agreements with planned filter inspections, filter replacement and spare-parts access. See 'About Particulair' for geographic coverage.