Air Operated Double Diaphragm (AODD) Pumps

Air Operated Double Diaphragm (AODD) Pumps

Air Operated Double Diaphragm (AODD) Pumps

Parameter Typical Range
Flow Rate Up to 1000 L/min (264 GPM)
Max Suction Lift (Dry) Up to 6 m (20 ft)
Max Suction Lift (Wet) Up to 8.5 m (28 ft)
Max Discharge Pressure Up to 8.6 bar (125 psi)
Operating Temperature -40°C to +120°C (Depending on materials)
Particle Handling Size Up to 10 mm (0.4 in)
Air Supply Pressure 1.4–8.6 bar (20–125 psi)

Overview

Our Air Operated Double Diaphragm (AODD) Pumps are designed for reliable and efficient transfer of liquids across a wide range of industries. Powered by compressed air, these pumps offer a safe, simple, and versatile solution for handling fluids of varying viscosities — from water-like to highly viscous or abrasive slurries. Their innovative design allows for self-priming, dry running, and safe operation in explosive or hazardous environments.

These pumps are especially valued in industries such as chemical processing, food and beverage, pharmaceuticals, mining, wastewater treatment, paint and coatings, and many more.

Key Features & Benefits

  • Air-Operated Drive
    Operates on compressed air—no electricity required—making them safe for use in explosive or flammable environments.
  • Double Diaphragm Design
    Provides a smooth, pulseless flow with consistent pressure, minimizing wear on the system and reducing maintenance.
  • Dry Running Capability
    Can run dry without damage, ideal for intermittent and start-stop operations.
  • Self-Priming Function
    Capable of lifting liquids from a dry start, even with high suction lift requirements.
  • Handles Solids and Viscous Fluids
    Easily transfers abrasive, corrosive, or high-viscosity liquids containing suspended solids.
  • Corrosion-Resistant Materials
    Available in various body materials (PP, PVDF, Aluminium, Stainless Steel) and diaphragm materials (PTFE, PVDF, Nitrile, EPDM) to suit different chemical compatibilities.
  • Low Maintenance
    Fewer moving parts reduce wear and tear, lowering maintenance costs and downtime.
  • Portable and Easy to Install
    Lightweight and compact design enables easy relocation and quick setup.

Typical Applications

  • Chemical transfer and dosing
  • Paints, inks, and coatings
  • Solvents and adhesives
  • Food and beverage liquids (syrups, sauces, oils)
  • Pharmaceutical ingredients
  • Slurries, sludge, and wastewater
  • Mining and construction dewatering

Why Choose Our AODD Pumps?

  • Explosion-proof operation
  • Safe for shear-sensitive fluids
  • Gentle pumping action preserves product integrity
  • Long service life even under demanding duty cycles
  • Wide range of sizes and material options to suit any process
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