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Our PRO Series diaphragm pumps offer the ability to vary the flow outlet and discharge pressure as low as 0.26 gallons (1 liter) per minute up to 275 gallons (1040 liter) per minute for our larger sizes and adjust fluid pressure up to 123 p.si. (8.5 bar), by using just an air filter / regulator and a needle valve.

ARO Pro Series air operated diaphragm pumps are ideal for general industrial and OEM installation applications. They can easily pump from clean, light viscosity fluids to corrosive, abrasive medium viscosity fluids and can transfer large particles without damage. Due to their pneumatic motor, they could be used in potentially explosive areas. Most of the ARO diaphragm pumps are ATEX certified ( CE Ex11 2GD X).

1/2" to 3/4" Pumps

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1/2'' Classic Non-Metallic AODD Pump

1/2'' ARO Classic Style Non-Metallic diaphragm pump features the world's best selling 1/2" ported diaphragm pump for performance and reliability.
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3/4'' Aluminum Diaphragm Pump

The 3/4” aluminum metallic diaphragm pump feature big performance in a small package. It can achieve flow rates up to 33 GPM (125 l/min).

1" to 3" Pumps

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1'' Pro Series Non-Metallic AODD Pump

1'' ARO Pro Series Non-Metallic Diaphragm Pump include the following features a robust construction with thick walled injection.
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1-1/2 Pro Series Plastic Diaphragm Pump

The ARO 1-1/2" PRO series plastic pneumatic diaphragm pump is ideal for general industrial pumping applications and machine manufacturers (OEM).
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2'' Pro Series Non-Metallic AODD Pump

ARO 2'' Pro Series Non-Metallic Diaphragm Pump includes the following features; Robust construction, highly efficiency and reliability. Max. Flow: 549 l/min.
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1'' Diaphragm Pump - PRO Series Metallic

The 1'' Pro Series Metallic Diaphragm Pump 66610X-XXX-C of ARO features a compact with a rugged design that allows for easy mobility and high reliability.
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1-1/2'' Pro Series Metallic AODD Pump

ARO PRO 1-1/2” metallic diaphragm pumps achieve flow rates of up to 90 GPM (340.7 l/min) and are often used for transfer, filling, recirculation and batching.
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2'' Diaphragm Pump - PRO Series Metallic

ARO 2” PRO Series metallic diaphragm pumps achieve flow rates of up to 172 GPM (651L/min) and are often used for transfer, filling, recirculation and batching.
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3'' Diaphragm Pump - PRO Series Metallic

PRO Series 3” metallic diaphragm pumps of ARO achieve flow rates of up to 237 GPM (897 l/min) and are used for transfer, filling, recirculation and batching.

Why ARO PRO Series Pneumatic diaphragm pumps?

  • Sealless Design
  • Low Material Shear
  • Ease of Maintenance
  • Can Run Dry Without Damage
  • Portable
  • Self Priming
  • Easy-to-Install

Would you like to find out more about how air-operated diaphragm pumps work? Visit our  diaphragm pump technology page.

ARO Pro Series Diaphragm Pumps