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    3/8" Air Operated Double Diaphragm Pump, 5 GPM

    5 out of 5 based on 3 reviews | Write a review
    Low price air operated double diaphragm pump for sale, 3/8 inch fluid inlet and outlet, 1/4 in. air inlet, 5 GPM max. flow, working pressure up to 100 PSI, selectable body material of cast steel, aluminum alloy, non-metallic and stainless steel. AODD pump can be used for water purifier and high viscosity fluids.
    SKU: ATO-AODD-10
    Free Shipping Worldwide
    Delivery date: 6-12 days

    3/8 inch air operated double diaphragm pump can pump a variety of toxic, flammable, volatile liquid, slurry, BioFloc, high viscosity fluids, corrosive liquids and paint. It also can be used for cleaning sediment contaminant in shaft, tunnels and sewers.


    • Pneumatic dual diaphragm pump can transport high temperature media up to 130 ℃.
    • 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-10
    Max. Flow 5.0 GPM (18.9 LPM)
    Max. Working Pressure 100 PSI (0.7 Mpa)
    Fluid Inlet Size 3/8 inch (DN10) NPT
    Fluid Outlet Size 3/8 inch (DN10) 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)

    Dimension Drawing of 3/8 inch Air Operated Double Diaphragm Pump

    Air Consumption Diagram

    Air Consumption Diagram of 3/8 inch Air Operated Diaphragm Pump

    Fluid Flow Diagram

    Fluid Flow Diagram of 3/8 inch Air Operated Diaphragm Pump


    Details of 3/8 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 choose ATO air operated double diaphragm pump?

    ATO air operated double diaphragm pump has many advantages, which can be applied to various fields, such as sewage disposal, petrochemical industry, food, construction, pharmaceutical, furniture and paint industry. Miniature pneumatic dual diaphragm pump also can be used in the household, such as pumping color paint if you need to paint your house. Here are reasons why you choose our 3/8 inch AODD pumps.

    • The air powered diaphragm pump requires compressed air to work, which will not overheat. Exhaust is the process of heat absorption, the working temperature is reduced with no harmful gas discharge.
    • AODD pump is no need electric power, so it will not generate and electric spark and static spark.
    • Due to AOD pump is the positive displacement type works and the fluid inlet is a ball valve, it is not easy to be blocked.
    • This pneumatic double diaphragm pump is designed with self-suction, and the fluid flow is adjustable.
    • It can transport fluid in an extremely wide range, from low to high viscosity and from corrosive to viscous.
    • Our pump will be productive all the time, it will not decrease work efficiency as it wears out.
    Existing reviews of 3/8" Air Operated Double Diaphragm Pump, 5 GPM
    Cost effective AODD pump.
    I’ve always wanted an air operated double diaphragm pump, and I am very happy to find it on This one is very cost effective for me. Heavy duty but relatively lightweight construction makes this an excellent choice for any application. An excellent value, and I highly recommend it.
    From: Stanley | Date: 25/04/2022
    Was this review helpful? Yes No (0/0)
    Very pleased with this AODD pump.
    I’ve always wanted a diaphragm pump, this one is very cost effective for want you get. It will basically pump any liquids. It’s pretty lightweight, with a nice handle and good design. I am very pleased with this air operated double diaphragm pump.
    From: Donald | Date: 18/05/2022
    Was this review helpful? Yes No (0/0)
    Great pump! Fast delivery!
    This air operated double diaphragm pump works great. I am using it as an engine oil recovery pump and it does a great job even in -20 just make sure you have a dry air supply in the cold.
    From: Bourdon | Date: 28/10/2022
    Was this review helpful? Yes No (0/0)
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