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ATEX Zone 0/20 Pump

Air-Operated Double Diaphragm Pumps, also known as AODD pumps provide high performance, reliable solutions for your pumping needs.

ATEX Zone 0/20 Pump

  • Robust construction, easy to maintain
  • Can easily handle viscous, high SG and high head applications
  • Smooth action, less vibration and wear
  • Port sizes from ½” to 3”
  • Pressures up to 8.3 bar
  • Available in a wide range of materials
  • Flow rates up to 1041 litres/minute
  • Bolted construction for greater integrity
  • Reliable pneumatic air valve
  • Stalls against closed head without damage
  • Re-start on demand
ATEX Zone

Overview

ARO metallic air operated diaphragm pump models comply with Zone 0 for gases and Zone 20 for dust requirements. They have been approved by an independent lab for the most stringent ATEX requirements.
ARO is the only leading global AODD manufacturer with this certification. Zone 0 / 20 pumps are the safest choice for on-the-edge applications where higher risk may appear unexpectedly.

ATEX Zones

Hazardous areas are any location where there is risk of an explosion. The risk level of an explosion is determined by the frequency and duration of the occurrence of an explosive atmosphere.

  • Zone 0 / 20This is an area in which an explosive atmosphere is present continuously for long periods of time or will frequently occur.
  • Zone 1 / 21This 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.
  • Zone 2 / 22This is a place in which an explosive atmosphere is not likely to occur in normal operation but, if it does occur, will persist for a short period only. These areas only become hazardous in case of an accident or some unusual operating condition.

Our Experts

Barr + Wray’s team of engineers and technical specialists bring decades of experience in fluid handling filtration and pump system integration. We understand the challenges of industrial water management and treatment, and work collaboratively with clients to deliver effective, long-term solutions.

Our methodology ensures every project is scoped with clear objectives, measurable outcomes, and ongoing support to maintain performance over time.

Meet our team

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Brewing + Distilling

Brewing + Distilling

Whether you're crafting whisky or brewing at scale, Barr + Wray delivers process equipment that handles the full fluid journey, from ingredient water to the final product. With precision pumping, filtration, and disinfection systems that protect quality and flavour.

Food + Beverage

Food + Beverage

From ingredient handling to final rinse, Barr + Wray provides fluid processing systems - including pumps, filters, and UV, that support hygiene, consistency, and production efficiency.

Oil + Gas

Oil + Gas

In high-demand environments, our engineered systems handle a wide range of fluids, from process water to chemical streams - with robust pumping, filtration, and disinfection solutions.

Utilities

Utilities

Barr + Wray supports utility providers with reliable fluid handling systems that manage water, wastewater, and treatment chemicals - ensuring operational continuity and compliance.

PW Petrochemical

Petrochemical

Our process equipment is built to handle aggressive fluids and complex chemistries, helping petrochemical plants optimise flow, filtration, and disinfection across critical systems.

PW Pharmaceutical

Pharmaceutical + Biotechnology

We deliver precision-engineered systems for processing fluids used in drug formulation and biotech production - ensuring purity, consistency, and compliance with industry standards.

PW Coating

Chemical + Coatings

Our equipment handles everything from raw chemical inputs to final product filtration, helping manufacturers maintain fluid integrity and reduce waste.

PW Industrial

General Industrial

Across diverse industrial sectors, Barr + Wray provides tailored fluid processing systems, from pumping and filtration to disinfection - that improve reliability and reduce downtime.

PW Building Services

Building Services

From HVAC circuits to greywater reuse, Barr + Wray supplies pumps, filters, and UV systems that keep building services running efficiently and sustainably.

PW Aquaculture

Aquaculture

Barr + Wray supports aquaculture operations with systems that manage both water quality and fluid circulation, from nutrient-rich feed solutions to waste stream control - using pumps, filtration, and UV technologies tailored to aquatic environments.