Argal Air-Operated Diaphragm Pumps
Pneumatic solutions for the process industry
Air-operated double diaphragm pumps for transferring and managing complex fluids in the process industry, designed to ensure operational reliability, safety and chemical compatibility even in demanding applications. Fluid System is an official Argal distributor for industrial applications requiring the handling of corrosive, abrasive or viscous fluids, or fluids containing solids, with safe operation even in critical environments.
Through its partnership with Argal, Fluid System supports customers in selecting the most suitable configuration, providing qualified technical consultancy and after-sales service. Air-operated diaphragm pumps are a proven technology in the process industry, valued for self-priming operation, dry-running capability and flexibility in discontinuous or demanding cycles.

Argal technological innovations
Argal air-operated diaphragm pumps incorporate technical solutions developed to improve operating efficiency, reliability and compatibility with complex process applications. One of the main innovations is the ADS air distribution system, designed with fewer components to optimise switching cycles, reduce compressed air consumption and limit icing during continuous operation.
For high-purity applications and sensitive processes, Argal has also developed dedicated solutions such as the QUANTUM series, featuring a compact design and specific materials (PTFE and PE1000) to ensure chemical compatibility, process cleanliness and stable performance over time.
TECHNICAL FEATURES
AODD (Air Operated Double Diaphragm) technology, pneumatically driven.
Operating pressure up to 8 bar.
Maximum flow rate up to 1280 l/min.
Solids passage up to 13 mm, depending on the series and configuration.
Self-priming and dry-running operation.
Operating temperatures up to 100 °C, with specific versions up to 120 °C.
Available body materials: PP, PVDF, PE1000, AISI 316L.
Diaphragms in TPE, TPV, PTFE, FKM, EPDM.
ATEX- and FDA-compliant configurations available on request.
Main applications
Argal air-operated diaphragm pumps are used across many process industry sectors, particularly where operational safety and application flexibility are required.
- Water treatment.
- Chemical industry.
- Galvanic industry.
- Marine industry.
- Surface treatment.
- Processes with abrasive fluids or fluids containing solids.
Argal Air-Operated Diaphragm Pumps available to order
ASTRAevo
Compact pneumatic pumps for standard process applications, with a wide range of materials and configurations available.
ASTRAsolid
Reinforced version for abrasive fluids and demanding applications, made from PE1000 (ultra-high molecular weight polyethylene) for maximum abrasion resistance. Suitable for intensive cycles and temperatures down to -40 °C.
MISTRAL
High-flow pneumatic pumps for intensive transfers and continuous-duty cycles.
MISTRALsolid
Heavy-duty solution for abrasive fluids and highly demanding industrial processes.
QUANTUM
Pneumatic pumps for high-purity applications, made entirely from PTFE to ensure chemical compatibility, process cleanliness and long-term operating stability. Suitable for sensitive chemical processes and water treatment.
QUANTUM-S
Specific series for the semiconductor sector and ultra-pure applications, made entirely from solid-machined PTFE, with no metal components in contact with the fluid. Designed to ensure maximum process purity, operational safety and chemical resistance even in critical applications.
Why choose Argal air-operated diaphragm pumps supplied by Fluid System
– Reliable, proven pneumatic technology, suitable for demanding operating conditions.
– High chemical compatibility thanks to the availability of dedicated engineering materials.
– Compliance with ATEX and FDA regulations, depending on the application and sector of use.
– Fluid System technical support and service, from selection through to after-sales.
Do you need Argal air-operated diaphragm pumps?
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Fluid System supplies high-quality solutions for the process industry, providing qualified technical consultancy, application support and after-sales service to ensure operational continuity and long-term reliability.
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FAQ — Argal air-operated diaphragm pumps
Yes. Argal air-operated diaphragm pumps are designed for handling corrosive, abrasive or viscous fluids, or fluids containing solids. The availability of materials such as PP, PVDF, PE1000 and AISI 316L enables the most suitable configuration to be selected according to chemical compatibility and process conditions.
AODD (Air Operated Double Diaphragm) technology enables self-priming operation, dry running and safe handling of complex fluids. Argal pumps also use optimised air distribution systems, such as ADS, to reduce compressed air consumption and improve reliability in continuous cycles.
Yes. Argal provides ATEX-compliant configurations, selected according to the classified zone and the type of fluid handled. Fluid System supports customers in correctly defining the ATEX configuration according to the application and the relevant regulations.
The ASTRA series are designed for standard process applications, while ASTRAsolid and MISTRALsolid versions are for abrasive fluids and demanding conditions. The MISTRAL series is suitable for high flow rates and continuous cycles. The QUANTUM and QUANTUM-S series are developed for high-purity applications and sensitive processes, thanks to specific materials and design features.
Yes. Fluid System supports customers in selecting the most suitable Argal air-operated diaphragm pump, assessing parameters such as fluid, flow rate, pressure, materials, regulations and operating conditions. Support includes pre-sales technical consultancy and after-sales service to ensure long-term operational continuity.