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    Diaphragm Pump

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

    $369.99
    SKU: ATO-AODD-10
    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.

    3/8" Electric Diaphragm Pump, 2.2GPM, 0.55kW

    $1,099.99
    SKU: ATO-EODD-10
    Low price 3/8 inch double diaphragm pump, max. flow 2.2 GPM, with 380V electric motor for delivering high viscosity fluids and slurry, 0.55 kW, speed ratio 1:17, motor speed 1450 rpm, gear ratio 1:17, optional body material of plastic, aluminum alloy, stainless steel and cast iron.

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

    $416.99
    SKU: ATO-AODD-15
    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.

    1/2" Electric Diaphragm Pump, 3.3GPM, 0.55kW

    $1,158.99
    SKU: ATO-EODD-15
    Buy 1/2 inch electric operated diaphragm pump at economical price, with 380V motor, 0.55kW, speed ratio 1:17, selectable body material of polypropylene, aluminum alloy, stainless steel and cast iron. This EODD pump is widely used for delivering high viscosity fluids and slurry.

    1" Electric Diaphragm Pump, 17.5GPM, 1.5kW

    $2,076.99
    SKU: ATO-EODD-25
    1 inch electric operated diaphragm pump can be used for pumping high viscosity fluids and slurry, driven by 380V motor, 1.5kW, speed ratio 1:17, selectable body material of polypropylene, aluminum alloy, stainless steel and cast iron, working temperature up to 100℃.

    3/4" Air Operated Double Diaphragm Pump, 15 GPM

    $389.99
    SKU: ATO-AODD-20
    Air operated double diaphragm pump can be used for pumping high viscosity fluids and corrosive liquids, with 3/4 inch fluid outlet and inlet, 1/4 inch air inlet, 15 GPM max. flow, working pressure up to 100 PSI, body material of non-metallic, aluminum alloy, cast steel, stainless steel available.

    1" Air Operated Double Diaphragm Pump, 15 GPM

    $449.99
    SKU: ATO-AODD-25
    Economical price industrial air operated double diaphragm pump for sale, 15 GPM max. flow, 1 inch fluid inlet and outlet, 1/4 inch air inlet , working pressure 100 PSI, used for water purifier with BioFloc technology and pumping corrosive liquids, slurry and high viscosity fluids. Body material of non-metallic, aluminum alloy, cast steel, stainless steel available.

    1-1/2" Electric Diaphragm Pump, 17.5GPM, 1.5kW

    $2,587.39
    SKU: ATO-EODD-40
    Factory price 1-1/2 inch (DN40) electric operated diaphragm pump for sale, with 380V motor, 1.5 kW, gear ratio 1:17, body material of polypropylene, aluminum alloy, stainless steel and cast iron available. Motor driven diaphragm pump is used for delivering high viscosity fluids and slurry.

    1-1/2" Air Operated Double Diaphragm Pump, 40GPM

    $544.69
    SKU: ATO-AODD-40
    Buy industrial air operated double diaphragm pump with 1-1/2 inch fluid inlet and outlet, 1/2 inch air inlet, air driven, selectable cast steel, aluminum alloy, stainless steel and non-metallic body material. This AODD pump at low price used for pumping slurry, high viscosity fluids, corrosive liquids and paint, manufacturer direct sale.

    2" Electric Diaphragm pump, 24GPM, 1.5kW

    $2,969.99
    SKU: ATO-EODD-50
    Economical price 2 inch electric operated diaphragm pump driven by 380V. 1.5kW motor for pumping high viscosity fluids and slurry, gear ratio 1:17, working temperature up to 100℃, body material of polypropylene, aluminum alloy, stainless steel and cast iron for your choice.

    2" Air Operated Double Diaphragm Pump, 100 GPM

    $849.99
    SKU: ATO-AODD-50
    Factory price industrial pneumatic double diaphragm pump for sale, 2 inch fluid inlet and outlet, 1/2 inch air inlet, max. suction lift 18 ft., air consumption 32 SCFM, max. working pressure up to 120 PSI, selectable body material of stainless steel or aluminum alloy and non-metallic.

    3" Electric Diaphragm pump, 61.5GPM, 3kW

    $4,699.99
    SKU: ATO-EODD-80
    Buy industrial 3 inch electric operated diaphragm pump at factory price, driven by 380V, 3kW motor for pumping high viscosity fluids and slurry, gear ratio 1:17, max. flow 61.5 GPM, selectable NPT and flanged connection type.

    4" Air Operated Double Diaphragm Pump, 150 GPM

    $1,744.99
    SKU: ATO-AODD-100
    Heavy duty industrial air operated double diaphragm pump for sale, driven by compressed air, body material of cast steel, non-metallic, aluminum alloy and stainless steel available, 4 inch fluid inlet and outlet, 1/2 inch air inlet, air consumption 45 SCFM. Used for transport various corrosive liquids and high viscosity fluids.

    4" Electric Diaphragm pump, 61.5GPM, 3kW

    $4,976.99
    SKU: ATO-EODD-100
    Heavy duty 4 inch electric operated diaphragm pump at factory price, driven by 380V, 3kW motor for pumping high viscosity fluids and slurry, gear ratio 1:17, max. flow 61.5 GPM, selectable NPT and flanged connection type.

    5" Air Operated Double Diaphragm Pump, 275 GPM

    $4,499.99
    SKU: ATO-AODD-125
    Industrial air operated double diaphragm pump for pumping various corrosive liquids and high viscosity fluids, stainless steel, aluminum alloy and non-metallic body material, comes with 5 inch (DN125 mm) flange fluid inlet and outlet. This heavy duty AODD pump is easy to install and operate.

    Diaphragm pump is a new type of mechanical transportation equipment, which can be used for all kinds of corrosive liquids, liquids with particles, high viscosity, volatile, flammable and highly toxic liquids. Diaphragm pumps are divided into air operated diaphragm pumps and electric diaphragm pumps, and their materials are engineering plastics, aluminum alloys, stainless steel, cast iron, etc.

    The diaphragm pump separates the liquid to be pumped from the movable column and the pump cylinder by means of a membrane, thereby protecting the movable column and the pump cylinder. The parts on the left side of the diaphragm that are in contact with the liquid are made of corrosion-resistant materials or coated with a layer of corrosion-resistant substances, and the right side of the diaphragm is filled with water or oil.

    The AODD pump is a new type of delivery pump that uses compressed air as a power source. Its advantage is that it can absorb various corrosive liquids, liquids with particles, high viscosity, volatile, flammable and highly toxic liquids. The electric diaphragm pump is equipped with different power motors to operate, which achieves the purpose of pumping liquids by electricity. It has many functions, including without the need for irrigation and water supply, and has strong self-priming ability.

    Difference between an air diaphragm pump and an electric diaphragm pump

    Air operated diaphragm pump vs electric powered diaphragm pump

    • Different driving methods.
    • The air operated double diaphragm pump is driven by compressed air (2-8.4 kg air pressure), and the electric diaphragm pump is driven by electricity.
    • Different flow parameters.
      The maximum flow rate of the air operated diaphragm pump is 60m/h, and the flow rate of the electric diaphragm pump is only 28m/h.
    • Different adjustments.
      The pneumatic diaphragm pump can adjust the flow rate directly by adjusting the air source pressure. The electric diaphragm pump just can adjust the flow rate with a frequency converter.
    • Air diaphragm pumps are structural explosion-proof, which is suitable in all kinds of flammable and explosive places, while electric diaphragm pumps must be equipped with an explosion-proof motor to meet explosion-proof requirements.
    • The outlet of the AODD pump can be held back, but the outlet of the electric diaphragm pump cannot be held back, and a safety valve or a pressure relief valve must be installed.
    • Under the same model, the air diaphragm pump is cheaper and lighter than the electrical diaphragm pump.

    What is the main material of the diaphragm pump?

    Diaphragm pump, also known as control pump, is the main type of actuator. It changes the fluid flow with the help of power operation by receiving the control signal output by the adjustment control unit. The function of the diaphragm pump in the control process is to accept the control signal of the regulator or computer, change the flow rate of the adjusted medium, and maintain the adjusted parameters within the required range, so as to achieve the automation of the production process. If the automatic adjustment system is compared with the manual adjustment process, the detection unit is the human eye, the adjustment control unit is the human brain, and then the execution unit - the diaphragm pump is the human hands and feet. To realize the adjustment and control of a certain parameter of the process, such as temperature, pressure, flow, liquid level, etc., the diaphragm pump is inseparable.

    There are five commonly used materials for AODD pumps, including plastic, aluminum alloy, cast iron, stainless steel, and Teflon. Electric diaphragm pumps are available in four of these materials, including plastic, aluminum alloy, cast iron, and stainless steel. Diaphragm pump diaphragms are installed in various special occasions according to different liquid media, such as nitrile rubber, neoprene rubber, fluorine rubber, polytetrafluoroethylene, etc., to pump various media to meet the needs.