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ARO

ARO is a brand of fluid handling equipment with a history dating back to the early 20th century, originally established as The Aro Equipment Corporation. The brand is known for air-operated double diaphragm (AODD) pumps, pneumatic controls, and related accessories. ARO products are used in industrial settings for transferring fluids, dosing chemicals, and managing compressed air systems. The product families include AODD pumps, air control valves, filter-regulator-lubricator (FRL) units, repair kits, manifolds, O-rings, and check valves. These components are integral to processes in chemical processing, water treatment, food and beverage, and general manufacturing. ARO AODD pumps are available in various materials such as aluminum, stainless steel, and engineered plastics, with port sizes ranging from 1/4 inch to 3 inches, and flow capacities up to 195 gallons per minute. They handle viscous fluids, slurries, and abrasive media. Air control valves include manual and solenoid actuation, with flow rates up to 7.5 scfm. FRL units provide filtration down to 5 microns and pressure regulation up to 150 psi. Many ARO products meet industry standards, including ATEX compliance for use in explosive atmospheres, and some pumps are FDA-compliant for sanitary applications. 3G Electric supplies ARO components globally, offering genuine replacement parts such as O-rings, duckbill check valves, and air-end repair kits. The product range includes SKUs like the 45C313 O-ring, 341TP1 manual air control valve, 342EF6 FRL air filter/regulator, 828XL9 FDA-compliant AODD pump, 4RM92 air-end repair kit, 42CH50 outlet manifold, 45C263 O-ring, and 812NH1 duckbill check valve. These parts support maintenance, repair, and operations for industrial fluid systems. 3G Electric provides access to ARO's catalog with technical specifications and compatibility information to assist procurement and maintenance teams. The brand's focus on durable construction and interchangeability of parts supports efficient system upkeep. ARO products are engineered for reliability in demanding environments, with materials selected for chemical compatibility and wear resistance. The AODD pump design uses compressed air as a power source, making them suitable for applications where electrical motors are not ideal, such as in wet or hazardous locations. The pumps are self-priming and can run dry without damage. Air control valves are used to direct airflow in pneumatic circuits, with options for panel mounting and various actuator types. FRL units condition compressed air to protect downstream equipment. 3G Electric's inventory includes these components to support global industrial operations. The brand's legacy in pneumatic and fluid handling technology is reflected in the broad range of parts and accessories available. 3G Electric sources genuine ARO parts, ensuring compatibility and performance. For technical buyers, ARO offers documentation on flow rates, pressure ratings, and material specifications to aid in selection. The product line is continuously updated to meet evolving industry needs. 3G Electric's role is to provide these components with efficient logistics and technical support. This overview covers the primary aspects of the ARO brand as supplied by 3G Electric.

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About ARO

ARO is a brand of fluid handling equipment with a history dating back to the early 20th century, originally established as The Aro Equipment Corporation. The brand is known for air-operated double diaphragm (AODD) pumps, pneumatic controls, and related accessories. ARO products are used in industrial settings for transferring fluids, dosing chemicals, and managing compressed air systems. The product families include AODD pumps, air control valves, filter-regulator-lubricator (FRL) units, repair kits, manifolds, O-rings, and check valves. These components are integral to processes in chemical processing, water treatment, food and beverage, and general manufacturing. ARO AODD pumps are available in various materials such as aluminum, stainless steel, and engineered plastics, with port sizes ranging from 1/4 inch to 3 inches, and flow capacities up to 195 gallons per minute. They handle viscous fluids, slurries, and abrasive media. Air control valves include manual and solenoid actuation, with flow rates up to 7.5 scfm. FRL units provide filtration down to 5 microns and pressure regulation up to 150 psi. Many ARO products meet industry standards, including ATEX compliance for use in explosive atmospheres, and some pumps are FDA-compliant for sanitary applications. 3G Electric supplies ARO components globally, offering genuine replacement parts such as O-rings, duckbill check valves, and air-end repair kits. The product range includes SKUs like the 45C313 O-ring, 341TP1 manual air control valve, 342EF6 FRL air filter/regulator, 828XL9 FDA-compliant AODD pump, 4RM92 air-end repair kit, 42CH50 outlet manifold, 45C263 O-ring, and 812NH1 duckbill check valve. These parts support maintenance, repair, and operations for industrial fluid systems. 3G Electric provides access to ARO's catalog with technical specifications and compatibility information to assist procurement and maintenance teams. The brand's focus on durable construction and interchangeability of parts supports efficient system upkeep. ARO products are engineered for reliability in demanding environments, with materials selected for chemical compatibility and wear resistance. The AODD pump design uses compressed air as a power source, making them suitable for applications where electrical motors are not ideal, such as in wet or hazardous locations. The pumps are self-priming and can run dry without damage. Air control valves are used to direct airflow in pneumatic circuits, with options for panel mounting and various actuator types. FRL units condition compressed air to protect downstream equipment. 3G Electric's inventory includes these components to support global industrial operations. The brand's legacy in pneumatic and fluid handling technology is reflected in the broad range of parts and accessories available. 3G Electric sources genuine ARO parts, ensuring compatibility and performance. For technical buyers, ARO offers documentation on flow rates, pressure ratings, and material specifications to aid in selection. The product line is continuously updated to meet evolving industry needs. 3G Electric's role is to provide these components with efficient logistics and technical support. This overview covers the primary aspects of the ARO brand as supplied by 3G Electric.

Common Applications

  • Chemical processing — ARO AODD pumps with PTFE diaphragms and 316 SS wetted parts for corrosive fluid transfer
  • Food and beverage — FDA-compliant ARO AODD pump SD20S-CSS-SMM-B00 with Santoprene diaphragm and Tri-Clamp connections
  • Water treatment — ARO air control valves and FRL units for pneumatic control in filtration and dosing systems
  • General manufacturing — ARO air-end repair kits and O-rings for maintaining double diaphragm pumps in assembly lines
  • Pharmaceutical — ARO sanitary AODD pumps with 316 SS check valves for shear-sensitive and sterile fluid handling
  • Oil and gas — ATEX-rated ARO FRL units and air control valves for use in hazardous atmospheres

Frequently asked questions

Common questions about ARO from 3G Electric.

What are the key features of ARO AODD pumps?

ARO air-operated double diaphragm pumps are designed for fluid transfer in industrial applications. They use compressed air to flex diaphragms, creating a pumping action that can handle viscous, abrasive, or shear-sensitive fluids. Key features include self-priming, dry-run capability, and adjustable flow rates. Materials of construction include aluminum, cast iron, stainless steel, and engineered plastics, with diaphragm options such as Santoprene, PTFE, and nitrile. Port sizes range from 1/4 inch to 3 inches, and flow rates up to 195 gpm. Some models are FDA-compliant for sanitary use, and ATEX-rated versions are available for hazardous environments. These pumps are used in chemical, food, and wastewater applications.

How do I select the right ARO air control valve for my application?

Selecting an ARO air control valve involves considering actuation type, flow rate, port size, and configuration. ARO offers manual valves with lever, roller, or button actuators, as well as solenoid and air-piloted options. Flow rates vary by model; for example, the 200 Series manual valve provides up to 7.5 scfm. Port sizes range from 1/8 to 1/2 inch NPT. Configurations include 2-way, 3-way, and 4-way, with normally open or normally closed positions. Determine the required function (start, stop, redirect), available pressure, and environmental conditions. Compatibility with existing pneumatic systems and mounting options should also be checked. Technical specifications are available for each model.

What is included in an ARO air-end repair kit?

An ARO air-end repair kit contains components to service the air motor section of ARO double diaphragm pumps. For example, kit 637118-C includes U-cups and air valve retaining rings. These kits are designed to replace worn seals and restore pump performance, preventing air leaks and maintaining efficiency. The number of seals varies by kit; some include up to 24 pieces. It is important to match the kit to the specific pump model and serial number. Repair kits are available for various ARO pump series. Using genuine ARO kits ensures proper fit and material compatibility. Maintenance intervals depend on operating conditions and air quality.

Are ARO FRL units suitable for use in explosive atmospheres?

Some ARO FRL (filter-regulator-lubricator) units are ATEX-compliant, making them suitable for use in explosive atmospheres. For instance, the Series 2000 piggyback filter/regulator with part number P39354-600 carries ATEX certification. These units are constructed with aluminum bodies and nitrile seals, and they provide filtration down to 5 microns and pressure regulation up to 150 psi. When selecting an FRL for hazardous areas, verify the specific ATEX rating and temperature class. Proper installation and maintenance are required to maintain compliance. Non-ATEX versions are also available for standard industrial environments.

What are the compatibility considerations for ARO O-rings and check valves?

ARO O-rings and check valves are designed for specific pump models and series. For example, O-ring Y330-113 fits select PD20A pump models, while O-ring Y325-126 is compatible with the 66615X-X-C series and model 650718-C. Duckbill check valve 93114-2 is used with Series 66605 and model 666053-0D2-04. Material compatibility with the pumped media is critical; nitrile is common for oil and water, while PTFE or Viton may be needed for chemicals. Temperature limits also apply, such as 180°F for the nitrile duckbill valve. Always refer to the pump manual or consult technical data to ensure correct part selection.

Does 3G Electric supply ARO products?

Yes — 3G Electric (S) Pte. Ltd. supplies ARO products. We stock the ARO catalog and supply genuine factory-original products with full manufacturer warranty and technical support.