Aro Double Diaphragm Pump

Applications & Use Cases

• Transferring viscous liquids and slurries in food production.
• Handling shear-sensitive products like yoghurts and fruit purees.
• Pumping ingredients such as sauces, oils, and flavourings.
• Emptying containers and IBCs of food-grade liquids.
• Use in Clean-in-Place (CIP) systems for chemical transfer.

Typical Specifications

Typical capacity

For this class of equipment, capacities commonly range from 50 to 800 litres per minute, depending on the specific model and air supply.

Power supply

These are air-operated double diaphragm (AODD) pumps, typically requiring a compressed air supply, commonly between 2 to 7 bar (30-100 psi).

Materials of construction

Wetted parts are commonly available in food-grade materials such as stainless steel (316L), polypropylene, or PVDF, with diaphragms in PTFE, Santoprene, or Hytrel.

Port sizes

Inlet and outlet ports typically range from 1/2 inch to 3 inches, suitable for various flow rates and product viscosities.

Mobility

This unit is mounted on a stainless mobile stand, offering flexibility for use in different areas of a facility.

Pressure capability

AODD pumps can typically achieve discharge pressures up to the supplied air pressure, commonly around 7 bar.

Frequently Asked Questions

• What are the main advantages of an AODD pump for food processing?

  AODD pumps offer gentle product handling, are self-priming, can run dry without damage, and are suitable for abrasive or viscous fluids. They also provide good containment for hazardous or sensitive products.

• Is this pump suitable for CIP (Clean-in-Place) applications?

• What maintenance is typically required for an AODD pump?

• Can this pump handle solids?

• What certifications might be relevant for a used food-grade pump?