REF · 006-CHEM05 / Chemistry · Petrochemicals

ATEX and corrosive environments.

Chemical and petrochemical sites handle flammable, corrosive or toxic products. Compressed air and industrial vacuum must operate in ATEX zone 1 or 2, withstand aggressive vapors, and guarantee integrity even in case of gas backflow from the process to the pneumatic installation.

Technical challenges

What needs to be solved.

  • 01Maintain ATEX zone 1 or 2 certification across all equipment (compressor, dryer, filtration, vacuum) with complete IECEx documentation.
  • 02Withstand corrosive vapors (HCl, H₂S, NH₃) without premature degradation — choice of liquid-ring or dry-screw pumps, anti-corrosion treatments.
  • 03Ensure 24/7 operational continuity on batch and continuous processes, with planned preventive maintenance and local parts stock.
Use case

A concrete example.

A surfactant production unit using vacuum reactors installs three CZ-VAC-RS50 dry-screw vacuum pumps ATEX zone 1 certified, sized for 0.1 mbar vacuum level. The external casing is treated against atmospheric corrosion. A PLC monitoring system relays alarms to the plant DCS. Preventive maintenance is scheduled quarterly with on-site buffer parts stock.

CEZIUM technologies

Our technical answer.

Combination of CEZIUM machines sized for this process. Technical details in the distributor pack.

ATEX zone 1/2
Liquid ring
Dry screw vacuum
Standards & certifications

Compliances attested.

ATEX 2014/34/EUISO 80079IECEx

Compliances are verified case by case according to the selected model and audit scope. Complete documentation provided with each machine.

REF · 006-XNext step

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