Eva Hydraulic Solutions Is A Trusted Leader In The Design And Manufacturing Of Hydraulic Systems And Components. With Over 35 Years Of Experience In The Industry, We Specialize In Producing High-Quality Hydraulic Cylinders, Hydraulic Power Packs, Hydraulic Manifolds, And Hydraulic Jacks.

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    Air Operated Double Diaphragm Pump

    Eva Hydraulic Solutions > Our Products > Air Operated Double Diaphragm Pump
    // About Our Products

    Air Operated Double Diaphragm Pump

    An Air Operated Double Diaphragm (AODD) Pump is a positive displacement pump powered by compressed air, widely used for transferring liquids, slurries, chemicals, and viscous fluids.

    Working Principle

    • Compressed air alternately pushes two flexible diaphragms
    • One diaphragm creates suction while the other discharges fluid
    • Check valves control fluid direction
    • The process repeats, creating continuous flow

    Key Features

    • Air powered – no electricity required
    • Self-priming
    • Dry run capable (no damage)
    • Explosion-proof & spark-free
    • Handles corrosive, abrasive & viscous fluids
    • Can pump solids-laden fluids

    Common Materials

    Pump Body:

    • Aluminum
    • Cast Iron
    • SS 304 / SS 316
    • Polypropylene
    • PVDF

    Diaphragm:

    • PTFE (Teflon)
    • Nitrile
    • Neoprene
    • EPDM
    • Viton

    Typical Applications

    • Chemical transfer
    • Paints, inks & coatings
    • Oil & lubricants
    • Wastewater & sludge
    • Food & pharmaceutical liquids
    • Mining & construction sites

    Advantages

    • Simple design, low maintenance
    • Safe for hazardous environments
    • Adjustable flow by air pressure
    • Portable and lightweight options

    Limitations

    • Pulsating flow (can use pulsation dampener)
    • Lower efficiency than electric pumps
    • Requires clean, dry compressed air

    Technical Specifications (Typical)

    • Flow rate: up to 1000 LPM
    • Pressure: up to 8 bar
    • Suction lift: up to 8 meters
    • Solid handling: up to 10 mm (varies by model)

    (Formerly Known As Eva Industrial Solutions)

    Eva Hydraulic Solutions Is A Trusted Leader In The Design And Manufacturing Of Hydraulic Systems And Components. With Over 35 Years Of Experience In The Industry, We Specialize In Producing High-Quality Hydraulic Cylinders, Hydraulic Power Packs, Hydraulic Manifolds, And Hydraulic Jacks.

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