Combustible Dust Vacuums -
3533 Z20 – Z21/22

Zone 20 (inside the chamber) and Zone 21/22 (outside the chamber) ATEX Certified Industrial Vacuum

Delfin ATEX Ex 3533 Z20-Z21-22 standard vacuum
Compact and silent, the 3533 Z20 – Z21/22 is the result of years of experience in food, chemical and pharmaceutical industries.
This compact but powerful industrial vacuum has been engineered to fulfil the demanding requests of these industries and to guarantee maximum safety, even working in ATEX zones where the certification for zone 21 is required in zones where the ATEX certification is required.


  • Applications within the Food Industry
  • Chemical / Pharmaceutical Industry Applications

Main Features

  • Detachable container with direct safe bagging system option
  • Extremely silent
  • Safety valve as standard
  • Integrated stainless steel collection tank (stainless filter chamber available as optional)
  • Double stage filtration with integrated class M main filter + Class H filter

3533 Z20 – Z21/22 - Specifications

MODELS 3533 Z20 - Z21/22
Power (Voltage) 400 - 3
Frequency (Hz) 50
Power (kW) 4
Max Waterlift (mmH2O) 2700
Airflow max. (m3/h) 320
Surface (cm2) 20,000
Filtration class - primary filter (IEC 60335-2-69) H14
Filter surface - HEPA filter (cm2) 27,000
Capacity (Litres) 45
Suction inlet diameter (mm) 80
Sound level - dB(A) 69
IP protection / Ins. Cl. (IP) 66
Dimensions (cm) 98 x 55 x 125H
Weight (kgs) 85
ATEX Zone (Directive 94/9/CE) 20 - 21/22
Marking type (Directive 94/9/CE) II 1/3D - II 1/2D
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