HF 5,5 Z22

The model is EU type-approved under ATEX directive 2014/34/EU for stationary operation in external Zone 22 (dust, low risk). 'Ex h' is the construction protection type per EN ISO 80079-36/37, and 'tc' specifies the enclosure protection level against dust ignition. 'IIIB' covers non-conductive dust (paper, fibres, grain, bag dust etc.) -- note that class IIIC (conductive metallic dust) requires separate approval. 'T140' is maximum surface temperature in operation (140 degrees C). 'Dc' is the EPL code for Zone 22.

The HF chassis is designed for central systems where dust is not emptied at one point but discharged continuously to an external system. The catalogue calls this 'localized discharge'. A flange connection sits at the bottom of the filter chamber, and the customer fits the discharge system that suits the process. Typical choices are: (1) big-bag connection with drawstring clamp, suitable for high volume and easy disposal; (2) Longopac cassette, suitable for contaminated dust where containment matters; (3) rotary valve + container below, suitable for fixed service cycles; or (4) direct pipe to process silo or central collection. The benefit is that HF can run continuously without stopping to empty, and capacity is not limited by a 175 L bin. We are happy to help size the right discharge system for your plant.

All three are stationary Zone 22 units, but they solve different tasks. **HF Z22** (this model) is a central system without an integrated dust bin -- suitable when dust must be discharged continuously via big-bag, Longopac, rotary valve or direct pipe to process/silo, and a 175 L bin is too small or irrelevant. **PUMA FIX Z22** is also a central system, but with a 175 L AISI 304 bin included -- suitable when dust volume is moderate and an emptiable bin is practical. The performance profile is the same (high vacuum, moderate airflow) -- HF and PUMA FIX overlap in kW class, and the choice is about discharge system, not about suction. **DF FIX Z2-22** is a different kind of unit: high airflow and lower vacuum, for airborne dust extraction from large machines or multiple suction arms simultaneously -- not a central hose-outlet system. In short: HF = continuous discharge, PUMA FIX = bin emptying, DF FIX = high airflow for point extraction.

The standard configuration is cylindrical cartridges M class (90,000 cm2 of antistatic polyester) with SP automatic reverse-jet cleaning (pulsejet). For fine-particle emissions or emission requirements below 0.1 mg/m3, Depureco offers a HEPA H14 secondary filter option (110,000 cm2 fibreglass). The combination gives a filter stack that meets requirements for hazardous, pharmaceutical or metallic fine dust. Note that HEPA H14 adds pressure drop and must be accounted for in vacuum reserve during pipe sizing.

The HF Z22 is a tall unit: the footprint is 1240x1910 mm and the total height is 3488 mm (about 3.5 m). This means your location must have clear ceiling height of at least 3.8 m for service (filter replacement from above), otherwise the unit is placed outdoors, under a canopy or in a technical shelter. The unit ships with safety valve, remote vacuum control and inlet silencer included. The customer must ensure: (1) grounding of the chassis and all metallic pipes in the suction circuit -- the ATEX requirement for Zone 22 equipment to avoid electrostatic charging; (2) correct pipe sizing with as few bends as possible; (3) 400 V/3~ 50-60 Hz supply; (4) installation and sizing of the discharge system (big-bag, Longopac, rotary valve or direct pipe) -- see FAQ on localized discharge. IP55 and insulation class F make the unit suitable for indoor halls and under canopies.

Yes. We offer both installation and commissioning of central ATEX plants and mobile solutions, and ensure that the equipment is installed correctly, documented and adjusted to your environment. Installation is carried out in collaboration with your own electrical and piping trades -- we deliver the plant, the ATEX documentation and the technical commissioning, and we verify grounding, safety valve, pipe sizing and the chosen discharge system before start-up. See 'About Particulair' for our geographic coverage.

We stay around. Particulair offers service agreements on both central plants and mobile solutions, ensuring that all equipment is continuously maintained and complies with applicable requirements -- including ATEX inspection, filter replacement and annual servicing. A typical service agreement covers scheduled inspections, spare parts access and documentation maintenance. Contact us for a specific agreement tailored to your plant and duty cycle.