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Air Operated Double Diaphragm pumps

Air Operated Double Diaphragm, AODD, pumps are used in all types of industries for transporting a wide variety of liquids. Clean or polluted, thin or viscous, abrasive or aggressive.

Application field, Air Operated Double Diaphragm pumps

  • Petrochemicals - Tank cleaning, oil sludge, petroleum, benzene

  • Chemicals - Acids, alkalis, suspensions, latex, solvents, electroplating baths

  • Paint and Ink

  • Pulp & Paper - Printing inks, dispersions, pulp and paper slurries

  • Pharmaceutical - Syrups, alcohol, glycerine, ointment, tablets pastes, oils

  • Resins and Adhesives

OptiFlo- Self Priming multipurpose central flow AODD pump

Product Type:

Central Flow AODD pump

Self-priming multipurpose central flow AODD pump


With OptiFlo design we have succeeded in reducing the drawbacks of conventional AODD pumps, such as heavy pulsation, stalling air valves, cost of spares, noisy operation, downtime.

Thanks to the ingenious frictionless pivoting valve (FPV) and flexible diaphragm suspension (FDS) technologies we can now offer less down time, reduced operational cost and increased efficiency.

OtiFlo-Self-priming multipurpose central


  • Reduced downtime

  • Minimum of parts serviced in minutes. On-line design. Increased diaphragm life. Long life check valves. Foolproof air motor

  • Long lifetime and reduced spare parts cost

  • Prolonged diaphragm life (3-5 times). Low cost, long-life check valves. Frictionless pivoting valve.

  • Reduced pulsation (-70 %) and lower air consumption (-35 %) comparing conventional AODD pumps

  • Patented Flexible Diaphragm Suspension (FDS). Overlapping diaphragm movement - diaphragms not fixed to each other. Patented air motor system - pivoting valve technology (FPV)

  • System design flexibility

  • Self-closing flap valves – pump works in any position

  • Non-stalling air-motor

  • Operates with any type of air, dry or moist, dirty or oily. Self-cleaning. The unstable, frictionless pivoting design prevents the motor to get stuck in a deadlock

  • Reduced sound level

TopAir- Self Priming multipurpose peripheral flow AODD pump

TopAir Slef priming multipurpose periphe


  • High performance and long life diaphragm - Abrasive and corrosive materials handled without problems

  • No rotating parts - Handle fluids with high solid contents

  • Wide range of material combinations - Low and high viscous liquids, alkalis or acids

  • Dry start, self-priming - Can run dry without damage or overheating

  • Portable, simple and flexible installation – Can be installed with the flooded suction condition and possible to the submerged installation

  • Operated by compressed air, sparkless conditions - Explosion-proof

  • Variable flow control - Easy to set operation conditions by adjusting air inlet and system pressure

  • Pumping action remains constant without a gradual decline in performance

  • Reliable operation – Patented no-stalling and truly non-lubricated air valve

  • Simple design - Easy maintenance

Product Type:

Peripheral flow AODD pump

Self-priming multipurpose peripheral flow AODD pump

The TopAir series is one of the most complete lines of Air Operated Double Diaphragm pumps on the market. With eight sizes up to 800 l/min in a wide range of material combinations we can offer pump solutions for all types of applications and industries.

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