Air Operated Diaphragm Pump for Chemicals: Australian Supplier 2025
When it comes to safely and efficiently handling chemicals in industrial operations, one solution continues to stand out: the air operated diaphragm pump for chemicals. These pumps are valued for their versatility, reliability, and ability to handle corrosive, viscous, or abrasive fluids without compromising performance. At MultiTorque, we’ve spent over 15 years supplying, servicing, and repairing pumps across Australia, helping industries stay productive with dependable equipment solutions.
In this article, we’ll break down what makes an air operated diaphragm pump ideal for chemical transfer, what to consider when choosing one, and why working with a trusted pump specialist like MultiTorque is the smart move.

What is an Air Operated Diaphragm Pump?
An air operated diaphragm pump for chemicals is a type of positive displacement pump powered by compressed air. Instead of relying on electricity, these pumps use compressed air to move two flexible diaphragms back and forth, creating suction and discharge action. This design makes them safe and effective for environments where flammable or hazardous chemicals are present, as they eliminate the risks associated with electric motors.
Key features include:
- Self-priming ability – can run dry without damage.
- Handles a wide range of fluids – from thin solvents to thick, abrasive slurries.
- Excellent chemical resistance – available in materials suited to corrosive environments.
- Portable and flexible – easy to relocate as needed.
Why Use an Air Operated Diaphragm Pump for Chemicals?
Chemical handling demands a pump that can resist corrosion, withstand abrasive fluids, and operate safely. An air operated diaphragm pump for chemicals delivers these benefits:
- Chemical Compatibility
Pumps are available in a variety of materials, such as polypropylene, PVDF, stainless steel, and aluminium. This ensures safe handling of acids, caustics, solvents, and other aggressive chemicals. - Explosion Safety
Since they’re air-driven, there’s no risk of sparks from electric motors—an essential safety feature when pumping volatile chemicals. - Low Maintenance
With fewer moving parts and no mechanical seals, maintenance is simpler and breakdown risks are lower compared to other pump types. - Versatility
They can be used in chemical processing, water treatment, mining, food production, and countless other industries.
Industries That Rely on Diaphragm Pumps for Chemicals
MultiTorque supplies pumps to a wide range of industries across Australia, and air operated diaphragm pumps for chemicals are among the most popular choices for clients in:
- Chemical manufacturing – safe transfer of corrosive acids and bases.
- Mining – handling slurries, reagents, and wastewater.
- Water treatment – dosing and transferring chemicals for purification.
- Food and beverage – pumping cleaning agents and additives.
- Paints and coatings – transferring solvents, resins, and pigments.
The adaptability of these pumps makes them an indispensable tool wherever safety and reliability are non-negotiable.
How to Select the Right Air Operated Diaphragm Pump for Chemicals
When selecting a pump, there are several critical factors to evaluate:
- Chemical Compatibility
Ensure the pump body and diaphragm materials are suited to the specific chemical being transferred. Using the wrong material can lead to rapid wear or dangerous leaks. - Flow Rate & Pressure Requirements
Determine the volume of chemical that needs to be moved per hour and match the pump’s capacity to the application. - Viscosity & Solids Handling
If chemicals are thick or contain solid particles, select a pump capable of handling higher viscosities and abrasive content. - Operating Environment
Consider whether the pump will be used indoors, outdoors, in a mobile setup, or in a fixed system. - Air Supply Availability
Since these pumps are air-driven, a reliable compressed air source is required for efficient operation.
At MultiTorque, our team helps clients choose the correct pump configuration for their application, avoiding costly downtime and ensuring long-term reliability.
Why MultiTorque is the Trusted Choice
For over 15 years, MultiTorque has built a reputation for reliability and long-term partnerships with clients. We don’t just sell pumps; we provide complete solutions, from sourcing and supply to servicing and repairs in our workshops in Perth and Brisbane.
When it comes to air operated diaphragm pumps for chemicals, our advantages include:
- Expert knowledge of pump materials and compatibility.
- Access to leading brands like Wilden, Napco, and NOV.
- Custom solutions for unique chemical handling applications.
- Workshop-based repairs for maximum safety and precision.
- Australia-wide support with fast sourcing of spare parts.
We understand that when dealing with chemicals, downtime isn’t an option. That’s why businesses turn to us for dependable equipment and expert service.
The Future of Chemical Pumping
With increasing environmental and safety regulations, industries are demanding pumps that not only perform reliably but also minimise risk. Air operated diaphragm pumps for chemicals fit perfectly into this future, thanks to their efficiency, flexibility, and safety profile.
As industries evolve, MultiTorque continues to innovate and support clients with tailored pumping solutions. Our goal is to keep your operations running smoothly, safely, and profitably.
Partner with MultiTorque Today
If your business needs a dependable air operated diaphragm pump for chemicals, talk to the experts at MultiTorque. We’ll help you select the right pump, provide ongoing service support, and ensure your equipment operates at peak efficiency.
📞 Call us on 1300 726 525
📧 Email: sales@multitorque.com
🌐 Visit: www.multitorque.com.au
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At MultiTorque, we supply more than pumps—we supply reliability.