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Diaphragm Pumps

Our range of diaphragm pumps is used for agricultural spraying, chemical transfer, liquid application, and other fluid handling requirements. Mid-South Ag stocks diaphragm pumps from leading manufacturers, including Hypro, Shurflo, and CDS-John Blue, with electric, 12V, 115V, 230V, and gas diaphragm pump options available.


Our range includes complete pumps alongside control units, pump kits, adapters, and replacement components for maintaining and configuring diaphragm pump systems.

Browse our diaphragm pumps below, explore our wider pumps & pump systems range, or contact our team for help finding the right pump or replacement component.

 


89 products

  • Hypro Diaphragm Pump 9910-GR40 Control Unit-Mid-South Ag. Equipment
    Up to 34% off
    Vendor:
    ANNOVI REVERBERI

    Hypro Diaphragm Pump 9910-GR40 Control Unit

    Regular price From $165.66 USD
    Sale price $165.66 USD Regular price $251.07 USD SAVE $85.41
  • Hypro Shurflo Power Twin Pump-Mid-South Ag. Equipment
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo - Power Twin Pump - 4211035

    Regular price $378.11 USD
    Sale price $378.11 USD Regular price $685.03 USD SAVE $306.92
  • Hypro Diaphragm Pump 9910-GH50 Control Unit-Mid-South Ag. Equipment
    Up to 41% off
    Vendor:
    HYPRO

    Hypro Diaphragm Pump 9910-GH50 Control Unit

    Regular price $375.30 USD
    Sale price $375.30 USD Regular price $634.44 USD SAVE $259.14
  • Hypro Diaphragm Pump 9910-HYD5312 Hydraulic Flange Kit-Mid-South Ag. Equipment
    Up to 34% off
    Vendor:
    ANNOVI REVERBERI

    Hypro Diaphragm Pump 9910-HYD5312 Hydraulic Flange Kit (AR43397)

    Regular price $276.79 USD
    Sale price $276.79 USD Regular price $419.38 USD SAVE $142.59
  • Hypro Diaphragm Pump 9910-HYD2495 Hydraulic Flange Kit-Mid-South Ag. Equipment
    Up to 34% off
    Vendor:
    ANNOVI REVERBERI

    Hypro Diaphragm Pump 9910-HYD2495 Hydraulic Flange Kit (AR43396)

    Regular price $334.77 USD
    Sale price $334.77 USD Regular price $507.23 USD SAVE $172.46
  • Hypro Shurflo Diaphragm Automatic-Demand Pump 12VDC-Mid-South Ag. Equipment
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo | 2088-313-145 Diaphragm Automatic-Demand Pump 12VDC

    Regular price $246.45 USD
    Sale price $246.45 USD Regular price $446.50 USD SAVE $200.05
  • Shurflo | 8020-833-238 Diaphragm Pump Demand 115 VAC 3/8" NPT Female
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo | 8020-833-238 Diaphragm Pump Demand 115 VAC 3/8" NPT Female

    Regular price $214.90 USD
    Sale price $214.90 USD Regular price $389.35 USD SAVE $174.45
  • Hypro Shurflo Diaphragm Pump Demand 12VDC 1/2" NPSM-Mid-South Ag. Equipment
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo | Diaphragm Pump Demand 12VDC 1/2" NPSM

    Regular price $201.35 USD
    Sale price $201.35 USD Regular price $364.80 USD SAVE $163.45
  • Hypro Shurflo Diaphragm Pump Bypass 12VDC 1/2" NPTF-Mid-South Ag. Equipment
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo | Diaphragm Pump Bypass 12VDC 1/2" NPTF

    Regular price $201.35 USD
    Sale price $201.35 USD Regular price $364.80 USD SAVE $163.45
  • Hypro Shurflo Diaphragm Pump Demand 12VDC 1/2" NPTF-Mid-South Ag. Equipment
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo | Diaphragm Pump Demand 12VDC 1/2" NPTF

    Regular price $201.35 USD
    Sale price $201.35 USD Regular price $364.80 USD SAVE $163.45
  • Hypro Shurflo Diaphragm Pump Bypass 12VDC 1/2" npsm-Mid-South Ag. Equipment
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo | Diaphragm Pump Bypass 12VDC 1/2" NPSM

    Regular price $201.35 USD
    Sale price $201.35 USD Regular price $364.80 USD SAVE $163.45
  • Hypro 8050-305-426 Shurflo Accessories Oil Change Pump-Mid-South Ag. Equipment
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo - 8050-305-426 Oil Change System w/ Pump & Bucket

    Regular price $202.64 USD
    Sale price $202.64 USD Regular price $367.14 USD SAVE $164.50
  • Hypro Shurflo Diaphragm Front Adapter 12VDC Pump with Electrical Package-Mid-South Ag. Equipment
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo | 2088-343-170 Diaphragm Front Adapter 12VDC Pump with Electrical Package

    Regular price $186.08 USD
    Sale price $186.08 USD Regular price $337.13 USD SAVE $151.05
  • Hypro Shurflo Diaphragm Pump Demand/Bypass 230 VAC 3/8" NPT Female-Mid-South Ag. Equipment
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo | 8090-902-278 Diaphragm Pump Demand/Bypass 230 VAC 3/8" NPT Female

    Regular price $192.94 USD
    Sale price $192.94 USD Regular price $349.56 USD SAVE $156.62
  • Shurflo | 8020-503-250 Diaphragm Pump Bypass 115 VAC 3/8" NPT Female
    Up to 45% off
    Vendor:
    HYPRO

    Shurflo | 8020-503-250 Diaphragm Pump Bypass 115 VAC 3/8" NPT Female

    Regular price $188.29 USD
    Sale price $188.29 USD Regular price $341.13 USD SAVE $152.84

Diaphragm Pumps From Leading Brands

Diaphragm pumps use a flexible diaphragm to move liquids and are commonly used for agricultural spraying, chemical handling, liquid transfer, and other fluid handling applications.

Our range includes Hypro and Shurflo diaphragm pumps, with different power and operating configurations available to suit your equipment and application:

  • 12V DC diaphragm pumps – suited to mobile and equipment-mounted applications with a compatible 12V power supply.
  • 115V AC diaphragm pumps – electric diaphragm pumps for systems with a compatible 115V AC supply.
  • 230V AC diaphragm pumps – available for applications requiring a compatible higher-voltage AC supply.
  • Gas engine-driven diaphragm pumps – self-contained options for applications where an electrical supply may not be available.
  • Demand diaphragm pumps – automatically respond to changes in system pressure for compatible applications.
  • Bypass diaphragm pumps – allow liquid to recirculate within the pump when demand is reduced.

We also stock control units, hydraulic flange kits, pump and gear reduction kits, and other diaphragm pump components for compatible systems. 

Looking for another pump type? Compare our Centrifugal Pumps, Transfer Pumps, or browse all Pumps & Pump Systems.

How to Choose the Correct Diaphragm Pump For Your Application

The right diaphragm pump depends on your application, required flow rate and pressure, power source, connections, and the liquid being handled. For chemical applications, always check that the diaphragm, seals, valves, and other wetted materials are compatible with the intended liquid.

Our range includes demand, bypass, electric, and gas engine-driven diaphragm pumps for different agricultural and industrial applications.

If you're specifically transferring chemicals between tanks, IBCs, or containers, browse our Chemical Pumps & Meter Systems.

Reliable Diaphragm Pumps & Parts From Mid-South Ag

At Mid-South Ag, we supply a wide range of diaphragm pumps including gas diaphragm pumps, electric diaphragm pumps, diaphragm chemical pumps, replacement parts, and accessories from industry-leading manufacturers including Hypro, Shurflo, and CDS-John Blue. Our range covers complete pumps alongside control units, hydraulic components, pump kits, and other replacement parts.

When you buy from us, you'll benefit from:

  • Genuine manufacturer products
  • Competitive pricing
  • Expert technical advice
  • Fast shipping throughout the USA
  • Secure online ordering
  • Replacement parts and components

Need help identifying the right pump or component? Contact Mid-South Ag for technical support.

Frequently Asked Question

Diaphragm pumps are used to move liquids in applications such as agricultural spraying, chemical handling, liquid transfer, and other industrial fluid handling processes. The right pump depends on the liquid, required flow rate, operating pressure, and application.

Diaphragm pumps use a flexible diaphragm that moves back and forth to draw liquid into the pump chamber and then push it out through the discharge side. This positive displacement action allows the pump to move a controlled volume of liquid through the system.

A diaphragm pump uses a flexible diaphragm to move liquid, while a centrifugal pump uses a rotating impeller to create flow. Each has different flow, pressure, and operating characteristics, so the right choice depends on the application. Shop for centrifugal pumps.

Yes, some diaphragm pumps can be used for compatible chemicals. Always check that the diaphragm, seals, valves, and other wetted materials are suitable for the specific chemical before use.

An electric diaphragm pump uses an electric motor to operate the pumping mechanism. Mid-South Ag's range includes electric diaphragm pumps in 12V DC, 115V AC, and 230V AC configurations for compatible applications.

A demand pump typically uses a pressure switch to start and stop as system pressure changes. A bypass pump allows liquid to recirculate within the pump when demand decreases. The correct option depends on how the system is designed to operate.

Choosing the right pump involves checking the required flow rate, operating pressure, power supply, inlet and outlet connections, liquid compatibility, and intended application. If you're replacing an existing pump, checking the manufacturer and model number can also help identify a compatible replacement.

Yes. Diaphragm pumps are commonly used for agricultural spraying and liquid application. The pump's flow rate, pressure, materials, and specifications should be matched to the sprayer and liquid being applied.

Maintenance requirements vary by model but can include inspecting the diaphragm, valves, seals, oil, connections, and other wear components. Always follow the manufacturer's recommended maintenance schedule and replacement procedures.