AODD Pump (Air Operated Double Diaphragm Pump)

UNIQUE PUMP SYSTEMS®

Pump Type	Air Operated Double Diaphragm (AODD)
Material	Polypropylene (PP) · PTFE · Aluminium · Stainless Steel (SS316)
Brand	Unique Pump Systems
Size Range	½” to 3”
Max Flow Rate	Up to 1000 LPM
Head	Up to 40 metres
Operating Temperature	Up to 80°C
Drive Type	Air Driven — No Electricity Required

AODD Pump — Industrial Grade

Unique Pump Systems manufactures industrial-grade Air Operated Double Diaphragm (AODD) pumps in India, designed for handling abrasive, corrosive, viscous, shear-sensitive, and solid-laden fluids. Powered entirely by compressed air — no electricity required — making them ideal for hazardous, explosive, and ATEX-classified environments.

Available in Polypropylene, PTFE, Aluminium, and Stainless Steel body construction. Sizes from ½” to 3” with flow rates up to 1000 LPM. Handles solids up to 10 mm. Capacity up to 13 m³/hr. Self-priming and capable of dry running without damage.

Air Driven — No Electricity Up to 1000 LPM Explosion-Proof / ATEX Safe ” to 3” Sizes ️ Up to 80°C ️ Self-Priming & Dry-Run Safe

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⭐ Industrial grade · Trusted across India

What is AODD Pump?

An AODD pump is a type of positive displacement pump that uses compressed air to move fluids instead of electricity, making it highly reliable in harsh and hazardous operating conditions.

AODD pump are widely used in chemical plants, pharmaceuticals, oil & gas, wastewater treatment, food processing, and paint industries due to their ability to handle difficult fluids safely and efficiently.

How Does an AODD Pump Work?

An AODD pump works by using compressed air to move two flexible diaphragms back and forth, creating suction and discharge action to transfer fluids safely and efficiently.

AODD Pump Working Principle

Compressed Air Enters the Pump
Air is supplied to the pump through an air inlet and directed by an internal air valve.
Diaphragm Movement Begins
The air pushes one diaphragm outward while simultaneously pulling the opposite diaphragm inward. This alternating motion drives the pumping action.
Fluid Suction
As one diaphragm moves back, it creates a vacuum inside the chamber. This vacuum opens the inlet check valve and draws fluid into the pump.
Fluid Discharge
When the diaphragm moves forward, it pushes the fluid out through the outlet check valve toward the discharge line.
Continuous Alternating Cycle
The air valve automatically switches airflow between diaphragms, allowing continuous, smooth pumping without the need for electricity.

Types of AODD Pumps by Material of Construction

PTFE (Polytetrafluoroethylene) AODD Pumps

Size: ½” to 3”
Flow Rate: 20 LPM to 1000 LPM
Best for aggressive chemicals, solvents, acids, and corrosive fluids

Polypropylene (PP) AODD Pumps

Size: ½” to 3”
Flow Rate: 20 LPM to 1000 LPM
Ideal for acidic and alkaline chemical transfer

Aluminium AODD Pumps

Size: ½” to 3”
Flow Rate: 20 LPM to 1000 LPM
Used for oils, fuels, inks, and general industrial fluids

Stainless Steel AODD Pumps

Size: ½” to 3”
Flow Rate: 20 LPM to 1000 LPM
Suitable for food, pharmaceutical, solvent, and hygienic applications

Key Features & Benefits of AODD Pumps

Air-operated (no electricity required)
Explosion-proof and intrinsically safe
Handles solids, slurries, and viscous fluids
Can run dry and dead-head safely
Self-priming with excellent suction lift
Corrosion-resistant construction options
Low maintenance and easy servicing

AODD Pump Applications

Mining Industry

Dewatering of underground and surface mines
Slurry and sludge transfer
Reagent dosing
Fuel and solvent transfer

Coatings & Paint Industry

Paint, ink, and dye transfer
Spray gun feed pumps
Solvent flushing and cleaning lines

Ceramics Industry

Ceramic slip transfer
Filling moulds
Circulating abrasive slurry
Wastewater transfer

Chemical Processing

Loading/unloading tankers and barrels
Corrosive chemical transfer
Electroplating & anodizing chemicals
Filtration and circulation systems

Pulp & Paper Industry

Printing inks
Adhesives and resins
Kaolin clay and dispersions

Oil & Gas Industry

Oil, glycol, and fuel transfer
Sump pumping
Filter press feed
Hazardous area operations

Water & Wastewater Treatment

Solid-laden fluid transfer
Sumps and sludge handling
Utility pumping applications

Technical Specifications of AODD Pump

Pump Type: Air Operated Double Diaphragm
Material: Polypropylene / PTFE / Aluminium / SS
Size Range: ½” to 3”
Maximum Flow Rate: Up to 1000 LPM
Head: Up to 40 metres
Capacity: Up to 13 m³/hr
Solid Handling Size: Up to 10 mm
Operating Temperature: Up to 80°C
Drive Type: Air Driven
Application: Slurry, filter press, acidic material transfer

Advantages of AODD Pumps Over Centrifugal Pumps

Better handling of viscous and abrasive fluids
Can run dry without seal damage
No mechanical seals required
Safer for hazardous environments
Minimal shear, ideal for sensitive fluids

Why Choose Unique Pump Systems for AODD Pumps?

Unique Pump Systems is a trusted AODD pump manufacturer and supplier in India, offering:

Robust industrial designs
Custom material configurations
Reliable performance in harsh conditions
Fast delivery and technical support
Proven installations across multiple industries

Frequently Asked Questions - FAQs

AODD pumps are air-powered, while EODD pumps use electricity. AODD pumps are safer for hazardous environments.

AODD pumps are positive displacement pumps ideal for viscous and abrasive fluids, whereas centrifugal pumps are better for clean, low-viscosity liquids.

AODD stands for Air-Operated Double-Diaphragm pump.

Depending on size and air supply, AODD pumps can handle flow rates up to 1000 LPM.

The best pump depends on the application. AODD pumps are best for corrosive, abrasive, or hazardous fluids.

Yes, AODD pumps can run dry without damage.

Explosion-proof design, self-priming, dry-run capability, and low maintenance.

No, AODD pumps operate solely on compressed air.

Performance Chart of AODD Pump

AODD Pump

AODD Pump (Air Operated Double Diaphragm Pump)

AODD Pump — Industrial Grade

What is AODD Pump?

How Does an AODD Pump Work?

Types of AODD Pumps by Material of Construction