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    1/2" Air Operated Double Diaphragm Pump, 5 GPM

    5 out of 5 based on 2 reviews | Write a review
    Pneumatic double diaphragm pump for sale, powered by compressed air, 1/2 inch fluid outlet and inlet, 5.0 GPM max. flow, 1/4 inch air inlet, working pressure up to 100 PSI, optional body material of non-metallic, aluminum alloy, cast steel and stainless steel.
    SKU: ATO-AODD-15
    Free Shipping Worldwide
    Delivery date: 6-12 days

    AODD pump is a pneumatic device with high efficiency, which can transport high temperature media up to 150 ℃, and can be used for recovering and recycling of hot water, loading or unloading takers and oil depots.


    • Pneumatic dual diaphragm pump can transport high temperature media up to 150 ℃.
    • Adopt pilot operated type air valve to eliminate the AODD pump downtime and extend its life span.
    • It is designed with multiport to help you install it easily.
    • Air powered diaphragm pump can be used as a movable-type material transfer pump because it has such advantages as small in size, easy moving, no need base, small occupied area and easy installation.
    • It can be externally connected to an electromagnetic valve for remote control. And the reversing valve requires no lubrication.


    Model ATO-QYBK-15
    Max. Flow 5.0 GPM (18.9 LPM)
    Max. Working Pressure 100 PSI (0.7 Mpa)
    Fluid Inlet Size 1/2 inch (DN15) NPT
    Fluid Outlet Size 1/2 inch (DN15) NPT
    Air Inlet Size 1/4 inch NPT
    Suction Lift (Dry Suction) 8 - 10 ft. (2.5 - 3m)
    Max. Permitted Grain 0.06 in. (1.5mm)
    Max. Air Consumption 9.0 SCFM
    Every Stroke Flow 0.006 gal. (23cc)
    Every Reciprocating Flow 0.012 gal. (46cc)
    Max. Reciprocating Speed Dry Running 320 cpm
    Wet Running 250 cpm
    Body Structure Material Aluminum Alloy/ Cast Steel/ Non-Metallic (Plastic)/ Stainless Steel
    Diaphragm Material Butyronitrile (Default)/ Teflon (Customizable)
    Weight 4kg/ 7kg/ 4kg/ 7kg

    Dimensions (Unit: mm)

    1/2 inch Air Operated Diaphragm Pump 5 gpm Dimension Drawing

    Air Consumption Diagram

    Air Consumption Diagram of 1/2 Inch Air Operated Diaphragm Pump

    Fluid Flow Diagram

    Fluid Flow Diagram of 1/2 inch Air Operated Diaphragm Pump


    Details of 1/2 inch Air Operated Double Diaphragm Pump

    1 Air valve cover 8 Auxiliary shaft 15 Inner clamp 22 Air valve chamber
    2 Air valve cover O-ring 9 Auxiliary shaft O-ring 16 Poly rubber diaphragm 23 Muffler
    3 Discharge outlet 10 Piston 17 PTFE diaphragm 24 Ball valve
    4 Colum 11 Piston V-Ring 18 Outer clamp 25 Ball seat O-ring
    5 Feed inlet 12 Pitman shaft O-ring 19 Sliding plate
    6 Plug 13 Air valve chamber gasket 20 Sliding plate gasket 26 Ball seat
    7 Small slider 14 Baffle 21 Pitman shaft


    Applications of Air Operated Double Diaphragm Pump

    Tips: Why does the pressure of the air operated diaphragm pump drop suddenly?

    • Caused by insufficient fuel supply. It is recommended to repair the fuel valve in time.
    • The material has not reached a certain amount when the material is being fed, or there is an oil leakage phenomenon, it is necessary to check the actual situation of the material in time to control the oil leakage.
    • The pneumatic diaphragm pump has no action, or the action is very slow. This situation may occur because the air valve is stuck, and the air valve is worn. If the air valve is stuck, clean it in time. You can use a certain cleaning agent. If the air valve is worn, replace it with a new one.
    Existing reviews of 1/2" Air Operated Double Diaphragm Pump, 5 GPM
    Great pumping for hydraulic fluid.
    This AODD pump was great as it described. Works wonderful and saves a lot of time. Great pumping for hydraulic fluid. Very easy to use for coolant, oil and fuel. No issues so far. Would purchase again.
    From: Thorpe | Date: 27/04/2022
    Was this review helpful? Yes No (0/0)
    Lightweight but sturdy construction.
    I used this air operated double diaphragm pump for transferring mixed automotive oils from a holding tank to a waste tank. It is easy to use, lightweight but sturdy construction. I am happy with this purchase and I expect this transfer pump to last a long time.
    From: Duncan | Date: 25/05/2022
    Was this review helpful? Yes No (0/0)
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