Get the safest ATEX diaphragm pump
for Zone 0 applications

ARO is the only leading global manufacturer to offer ATEX Zone 0 diaphragm pumps


ATEX Zone 0 approved air operated diaphragm pumps for use in explosive areas

ARO air operated diaphragm pumps recently were certified for use in ATEX Zone 0 environments. This achievement allows us to offer pumps for even the highest explosion risk applications. Now we can guarantee trouble-free pump performance under the most hazardous conditions.

With more than 90 years of history, ARO is a leader in the design and production of pneumatic diaphragm pumps. We offer a complete ATEX pump range for explosive environments.

Most industrial activities, from chemical processing to paint applications, are subject to potentially explosive atmospheres. If the production processes occur in ATEX areas, it is essential that equipment in these areas have ATEX certification, in accordance with the classification of the work area. In our large diaphragm pump equipment group, ARO manufactures ATEX diaphragm pumps certified for ZONE 0, ZONE 1 and ZONE 2.


The ATEX Zone 0 rating indicates an area in which an explosive atmosphere is present continuously for long periods of time or will frequently occur.

ATEX certified pneumatic diaphragm pumps for Zone 0

Air operated diaphragm pumps that meet the highest requirements for ATEX certification: Zone 0

Pneumatic diaphragm pumps are typically the best fluid handling option for ATEX Zone 0 areas.

A pneumatic diaphragm pump compliant with ATEX directives enables safe operation of such units in potentially explosive atmospheres (flammable substances, dusts, gas, vapor and more). ARO is the only leading global pump manufacturer to offer a complete range of ATEX pumps for use in zones including Zone 0, 1 and 2.


See ARO PZ Series pumps for Zone 0


ATEX zone classification

Hazardous area can be defined as any location where there is risk of explosion. However, every hazardous area is different. Each has specific requirements depending on the nature of the atmosphere and type of explosive material present.

Fundamentally, for an explosion to take place, flammable or explosive gasses, vapors, mists or dusts will be present. Then, the level of risk is based on the frequency and duration of the occurrence of these hazardous elements. This level is represented by an ATEX rating of Zone 0, Zone 1 or Zone 2 (for gas, vapor and mist atmospheres) or Zone 21 or Zone 22 for dust atmospheres.

  • Category 1: Zone 0
    Zone 0 is an area in which an explosive atmosphere is present continuously for long periods of time or will frequently occur.
  • Category 2: Zone 1
    Zone 1 is an area in which an explosive atmosphere is likely to occur occasionally in normal operation. It may exist because of repair, maintenance operations or leakage.
  • Category 3: Zone 2
    Zone 2 is a place in which an explosive atmosphere is not likely to occur in normal operation. If it does occur, conditions will persist for a short period only.

The level of risk is based on the frequency and duration of the occurrence of hazardous elements. This level is represented by an ATEX rating of Zone 0, Zone 1 or Zone 2 (for gas, vapor and mist atmospheres).

Working safely with an ARO ATEX diaphragm pump

The ATEX legislation applies within all industrial processes that involve chemical or physical reactions involving the contact of flammable or combustible agents with oxidizing elements. Typical markets for ARO ATEX diaphragm pumps include:


ARO air diaphragm pump in use for a national leader in the recycling of silver-bearing x-ray film

Why choose ARO pneumatic diaphragm pumps for ATEX Zones 0, 1 and 2?

ARO can provide quick support to all fluid management needs in the ATEX field. ARO pneumatic diaphragm pumps comply with all the standards required by ATEX legislation. They provide a safe and reliable solution for environments with explosive risks, thus reducing the risk for employees associated with it.

  • ARO ATEX diaphragm pumps offer the highest safety standards.
  • Our pneumatic diaphragm pumps are approved for the most stringent ATEX requirements.
  • ARO is the only leading manufacturer to offer Zone 0 diaphragm pumps.
  • Our air diaphragm pumps are certified for use in Zone 0 for gases and Zone 20 for dusts.
  • ARO pumps have passed demanding tests by an external certifying body.
  • Our diaphragm pumps are available in ½” to 3 inch metallic sizes, with 28 metallic models in compliance with ATEX directives.

Contact us for more information

See ARO PZ Series pumps for Zone 0

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