Working Principle of Air Operated Diaphragm Pump:

The ARO Air Operated Diaphragm Pump operates on a simple yet effective principle. It consists of two flexible diaphragms that move back and forth within the pump’s chamber. The diaphragms are connected to a common shaft, forming a central divide within the pump. Each diaphragm is attached to a reciprocating rod, which is driven by compressed air.

When the compressed air is introduced into the pump, it pushes one diaphragm forward while simultaneously pulling the other diaphragm backward. This reciprocating action creates a pumping effect, drawing the fluid into the pump on the suction stroke and forcing it out on the discharge stroke. The fluid flow is regulated by a series of check valves that allow the fluid to pass in one direction while preventing backflow.

Components:

The ARO Air Operated Diaphragm Pump is typically composed of the following key components:

1. Air Valve: The air valve controls the flow of compressed air to the diaphragms, enabling the reciprocating motion necessary for pumping.
2. Diaphragms: The diaphragms are the crucial components responsible for creating the pumping action. They are flexible, often made of elastomeric material, and are designed to withstand the stress and wear of constant operation.
3. Pump Casing: The pump casing houses the diaphragms, valves, and other internal components. It provides structural support and protects the pump from external elements.
4. Check Valves: Check valves ensure that the fluid flows in the desired direction, preventing backflow and maintaining a consistent pumping action.
5. Inlet and Outlet Ports: These ports allow the entry and exit of fluid into and out of the pump. They are connected to the respective pipelines or hoses for fluid transfer.

Applications:

The ARO Air Operated Diaphragm Pump finds applications across a wide range of industries, thanks to its versatility and ability to handle various fluids, including corrosive and abrasive materials. Some common applications include:

1. Chemical Industry: The pump is used for transferring chemicals, acids, solvents, and other corrosive substances.
2. Mining and Construction: It is employed for dewatering, sludge transfer, and pumping slurries containing solids.
3. Food and Beverage: The pump is utilized in food processing, handling viscous materials, and transferring food-grade liquids.
4. Paints and Coatings: It is employed for circulating paints, adhesives, varnishes, and other coatings.
5. Pharmaceuticals: The pump is used for transferring pharmaceutical ingredients, suspensions, and solutions.

Benefits:

The ARO Air Operated Diaphragm Pump offers several advantages that make it a preferred choice in many industries:

1. Versatility: The pump can handle a wide range of fluids, including corrosive, viscous, and abrasive materials, making it suitable for diverse applications.
2. Self-Priming: It has excellent self-priming capabilities, allowing it to operate even when dry or partially submerged.
3. Stall-Free Operation: The pump can run dry without damaging its components, ensuring uninterrupted operation and protection against costly breakdowns.
4. Portable and Easy to Install: Air-operated pumps are typically compact, lightweight, and easy to move around. They can be quickly installed or relocated as per operational requirements.
5. Reduced Maintenance: With a relatively simple design and fewer moving parts, ARO Air Operated Diaphragm Pumps require minimal maintenance and have a longer service life.

Maintenance Requirements:

To ensure optimal performance and longevity, regular maintenance of the ARO Air Operated Pump is essential. Some key maintenance requirements include:

1. Diaphragm Inspection: Check the diaphragms for wear, tears, or chemical degradation. Replace them if necessary.
2. Valve Cleaning: Clean and inspect the valves regularly to ensure smooth operation and prevent clogging or sticking.
3. Air Filter Maintenance: Keep the air filter clean to avoid contamination and ensure the pump receives clean and dry compressed air.
4. Lubrication: Apply the recommended lubricant to the pump’s moving parts to reduce friction and extend their lifespan.
5. Regular Testing: Conduct periodic performance tests to identify any potential issues and make adjustments or repairs as needed.

ARO Air Operated Diaphragm Pump Specifications:

Pump Type: Non Metalic, Air Operated, Double Diaphragm Pump
Compatibility Compatible with: HCl, Acetic Acid, Sodium Hydroxide, Mango Pulp.
Temperature: Up to 120 Deg. C
Discharge Capacity: 1-50.68 M3/H
Pressure: 8.2 Bar (Max)
Inlet & Outlet: 0.5″-4”
MOC of Body: Polypropylene
MOC Diaphragm: PTFE
Air Inlet Pressure: 20 -120 psi (1.4 -6.8 bar)
Fluid Pressure: 20 -120 psi (1.4 -6.8 bar)
Maximum Inlet Pressure: 10 PSI (0.69 bar)
Maximum Particle Size: ¼” (6.4 mm)
Temp Range: 2 – 66 °C
Brand: ARO
Origin: USA.

Our dosing pump are known for their higher performance and they can handle a variety of liquids with solid particles, such as sewage and milk. Here are some application scenarios:

• Sewage treatment plant
• Molasses
• Coal slurry
• High mineral water
• Soft drink
• Alkali and acid
• Chemical solutions
• Medicine
• Papermaking
• Petrochemical
• Metallurgical
• We offer flowmeter solutions that address complex industrial challenges. Our flowmeter equipment has a reputation for being cost effective, easy to maintain and reliable. If you have any specific requirements, please contact us.

Beverage processing	Dairy industry	Meat Processing	Mining industry	Municipal Wasterwater
Paint factory	Paper Mill	Petrochemicals	Printing and Dyeing	Sewage Treatment