EVO Series 300 | Electric Triple Diaphragm Pump

Introducing the EVO Series™ 300 — ARO’s most advanced range of electric triple diaphragm pumps, designed to redefine process fluid handling through unmatched innovation, precision, and performance.

Engineered by ARO, a brand trusted for nearly a century, the EVO Series 300 combines the proven benefits of ARO’s industry-leading EXP diaphragm pump series with cutting-edge features found in the most efficient positive displacement pump technologies. At the heart of this innovation is a unique three-diaphragm design, offering significantly reduced pulsation, lower noise, and exceptional reliability in 24/7 continuous-duty applications.

This electric diaphragm pump range delivers all the versatility of traditional diaphragm systems, while achieving superior energy savings, process control, and long-term value. Recognized as “Product of the Year” at the 2023 Pump Industry Awards, the EVO Series 300 stands as a proud symbol of technological excellence and ARO’s relentless drive for innovation.

1" Metallic Electric Diaphragm Pump

It combines a compact footprint with outstanding performance. Its electric triple‑diaphragm design delivers smooth, reliable flow even with abrasive or aggressive fluids, while ensuring maximum process control and energy efficiency.

Max flow rate: 54 gpm (204 l/min)

Max pressure: 120 psi (8.3 bar)

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1" Polypropylene Electric Diaphragm Pump

It is the smart solution for corrosive and chemically aggressive applications. Featuring a leak‑free, sealless design and superior chemical compatibility, it ensures safe, efficient fluid handling with minimal maintenance.

Max flow rate: 54 gpm (204 l/min)

Max pressure: 120 psi (8.3 bar)

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2" Metallic Electric Diaphragm Pump

When higher flow meets demanding industrial processes, the EVO 320 2” Metallic sets the standard. Its robust construction and three‑diaphragm architecture deliver high throughput, low pulsation, and unmatched reliability in the harshest environments.

Max flow rate: 140 gpm (530 lpm)

Max pressure: 120 psi (8.3 bar)

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2" Polypropylene Electric Diaphragm Pump

Engineered for high‑flow chemical and industrial applications, the EVO 320 2” Non‑Metallic offers excellent resistance to corrosion while delivering powerful, controlled performance.

Max flow rate: 140 gpm (530 l/min)

Max pressure: 120 psi (8.3 bar)

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Key Benefits of the EVO 300 Electric Process Diaphragm Pump

Designed For Safety

True Deadhead Protection.
- A closed‑loop control system allows the electric triple diaphragm pump to stop instantly and safely at zero flow, while maintaining line pressure. This ensures maximum process safety and zero energy consumption during deadhead conditions.
Exclusive leak free system, including a secondary leak containment and leak detection sensors.
- Eliminates leakage to the environment through a primary containment system, enhanced with integrated secondary containment for fluid and oil. Each pump includes automatic leak detection as standard, triggering an auto shutoff alarm to protect both the process and operators.
Suitable for hazardous environments (ATEX)

Designed For Control

Built-in encoder and Variable Frequency Drive included.
- Monitor and control the pump flow according to your process parameters, including flow, head, torque and others.
Pulsation dampener free

ALL THE PERFORMANCE FEATURES YOU WANT IN ONE BREAKTHROUGH PUMP TECHNOLOGY

Designed For Efficiency

Maximum energy efficiency.
- Fully electric pump utilizes a 400V AC gear motor and requires no compressed air system
Lower repair costs.
- With integrated monitoring, preventative maintenance happens on a predictable schedule. Repairs are easy to perform, keeping downtime to a minimum.

Designed To Perform

Lower Pulsation.
- With its unique three-chamber design, pulsations are significantly lower compared to traditional two-chamber electric diaphragm pumps.
Easy to install and to maintain:
- ARO engineers eliminated the need for a base plate or shaft alignment. The EVO Series™ 300 pump has a compact footprint and can fit in small operational spaces.

Solids handling capacity
Reliability – increasing productivity, reducing maintenance

Exceptional robustness of process pumps

How does the EVO Series™ Electric Process Diaphragm Pump Work?

The EVO Series 300 design delivers the benefits of air operated diaphragm pumps and positive displacement pumps. With three diaphragms and efficiency and control features the EVO Series is an all-in-one-solution.

EVO 300 electric diaphragm pumps operate using a linear back-and-forth motion through a crankshaft system. This creates suction and discharge of the fluid.

You can explore the EVO Series working mechanism here: Electric Diaphragm Pumps: An Overview.

Additional benefits only available on the EVO Series™ 300 from ARO

High efficiency with exceptional energy savings compared to other positive displacements pumps
Extremely low pulsation due to the unique three chamber design, no need for pulsation dampener
True Deadhead thanks to closed loop control that automatically stops pump’s spinning and hold pressure
Leak Free because of the secondary containment for fluid and oil, and automatic leak detection
IIoT ready — Full integration through PLC or HMI devices
Control features — more controllable than any other positive displacement pump in its range
All-in-one design — no need to buy extra accessories
- Pump designed for long life even during high load conditions
- High resistant diaphragms
- Low maintenance cost
Hazardous duty certifications attending the most exigent worldwide safety standards covering environments with presence of hazardous liquids and gasses

Additional electric diaphragm pump EVO 300 benefits and advantages

Which typical problems can solve the EVO Series™ 300 Electric Diaphragm Pump?

Are you facing challenges in your industrial operations? The EVO Series™ 300 Electric Triple Diaphragm Pump is designed to address various typical problems encountered in harshest fluid handling applications. Some of the common problems that the EVO Series™ Electric Diaphragm Pump can solve include:

Typical applications where the EVO Series™ Electric Process Diaphragm Pump excels

You can choose between 5 different materials of construction to handle the most aggressive and corrosive fluids. From stainless steel, cast iron, aluminum, polypropylene to conductive polypropylene. The ARO exclusive AC gear motor is available in standard (black) safety area version or hazardous duty (red) version. The EVO Series™ can solve an impressive number of issues you may have:

Packaging

Reliable, efficient glue transfer to keep packaging production running smoothly

Chemical Processing

When your process requires the use of acids, caustics, solvents and other hazardous chemicals, we know that safety comes first.

Optimize Your Total Cost of Ownership with ARO Protect

The ARO Protect program is available for the EVO Series 300 in select countries. Designed to maximize uptime and minimize costs, the program includes wear parts kits for planned preventative maintenance and an extended warranty for added peace of mind. Learn more here or contact your local ARO partner today!