My Cart

Positive Displacement Pumps

These pumps are often thought of as high-pressure pumps. Their positive displacement of fluid and fixed volume are the result of the fluid being mechanically moved through their pump passage on a regular cycle. This means that regardless of the system they discharge into, the pressure and volume will remain constant. The power of the driving device and its speed, limit the volume and pressure.Positive Displacement pumps:Flow rates of GPD, CC/min to 100 GPM typically.Discharge pressures of a 1 to 1000 PSI.Low speed and fixed volume per cycle, they handle very viscid fluids well.Smaller than centrifugal pumps.Quiet, do not ad much heat to the fluid, suitable for shear sensitive fluids.Diaphragm pumps can easily pass solids, stringy and fibrous foreign matter. Are made in materials from CI to Titanium and PP, PVDF and PPS engineering resins.
View as List Grid

Items 331-340 of 486

Set Descending Direction
per page
Page
  1. SH 3Plex GB 152.9hp

    General Pump

    SH 3Plex GB 152.9hp

    SH2601
    $53,059.85
    SH Triplex Plunger Pump. A heavy-duty, high pressure industrial pump with a stainless steel manifold and internal gearbox.
    • Max. Inlet Pressure: 100 PSI
    • Max. Fluid Temp.: 86ï½°F
    • Inlet Port Thread: 1 1/2" BSP-F
    • Discharge Port Thread: 3/4" B...
    Learn More
    Add to Wish List Add to Compare
  2. SH 3Plex GB 152.9hp

    General Pump

    SH 3Plex GB 152.9hp

    SH3001
    $53,059.85
    SH Triplex Plunger Pump. A heavy-duty, high pressure industrial pump with a stainless steel manifold and internal gearbox.
    • Max. Inlet Pressure: 100 PSI
    • Max. Fluid Temp.: 86ï½°F
    • Inlet Port Thread: 1 1/2" BSP-F
    • Discharge Port Thread: 3/4" B...
    Learn More
    Add to Wish List Add to Compare
  3. Plastic Air Operated Diaphragm Pump

    All-Flo Pumps

    Plastic Air Operated Diaphragm Pump

    A050-SPP-GGPN-S70
    $1,030.50
    PolyPro Air AODD Pump 1/2". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Click here to Learn How to Size your Diaphragm Pump and for a Materi...
    PolyPro Learn More
    Add to Wish List Add to Compare
  4. All-Flo PB-038 PP Air Operated Double Diaphragm Pump Bolted Series

    All-Flo Pumps

    PP Air Operated Double Diaphragm Pump Bolted Series

    S038-SQP-GNPN-S70
    $634.49

    PolyPro Air AODD Pump 3/8". Max-Pass valve installed. Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Replaces previous model PB-038.  Click here to ...

    3/8" PP Learn More
    Add to Wish List Add to Compare
  5. SH 3Plex GB 154.4hp

    General Pump

    SH 3Plex GB 154.4hp

    SH2401
    $58,542.59
    SH Triplex Plunger Pump. A heavy-duty, high pressure industrial pump with a stainless steel manifold and internal gearbox.
    • Max. Inlet Pressure: 100 PSI
    • Max. Fluid Temp.: 86ï½°F
    • Inlet Port Thread: 1 1/2" BSP-F
    • Discharge Port Thread: 3/4" B...
    Learn More
    Add to Wish List Add to Compare
  6. All-Flo PT-038 PP Air Operated Diaphragm Pump

    All-Flo Pumps

    PP Air Operated Diaphragm Pump

    PT-038
    $947.10
    PolyPro Air AODD Pump 3/8". C038-SQP-TTPT-S70 Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. For handling large size solids order the Max-pass v...
    3/8" PP/TFE Learn More
    Add to Wish List Add to Compare
  7. SH 3Plex GB 154.7hp

    General Pump

    SH 3Plex GB 154.7hp

    SH3017
    $68,975.05
    SH Triplex Plunger Pump. A heavy-duty, high pressure industrial pump with a stainless steel manifold and internal gearbox.
    • Max. Inlet Pressure: 100 PSI
    • Max. Fluid Temp.: 86ï½°F
    • Inlet Port Thread: 1 1/2" BSP-F
    • Discharge Port Thread: 3/4" B...
    Learn More
    Add to Wish List Add to Compare
  8. All-Flo PV-038 PP Air Operated Double Diaphragm Pump Bolted Series

    All-Flo Pumps

    PP Air Operated Double Diaphragm Pump Bolted Series

    PV-038
    $648.14
    PolyPro Air AODD Pump 3/8". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. For handling large size solids order the Max-pass valve under accessor...
    Learn More
    Add to Wish List Add to Compare
  9. SH 3Plex GB 155.3hp

    General Pump

    SH 3Plex GB 155.3hp

    SH2617
    $53,059.85
    SH Triplex Plunger Pump. A heavy-duty, high pressure industrial pump with a stainless steel manifold and internal gearbox.
    • Max. Inlet Pressure: 100 PSI
    • Max. Fluid Temp.: 86ï½°F
    • Inlet Port Thread: 1 1/2" BSP-F
    • Discharge Port Thread: 3/4" B...
    Learn More
    Add to Wish List Add to Compare
  10. Allflo_038 kynar pvdf plastic diaphragm pump

    All-Flo Pumps

    Kynar Air Operated Double Diaphragm Pump

    S038-SQK-SEKE-S70
    $1,124.37
    Kynar Air AODD Pump 3/8". PVDF Kynar body, Santoprene elastomers, PTFE Teflon diaphragm. Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Often use...
    3/8" 9GPM Kynar Learn More
    Add to Wish List Add to Compare
View as List Grid

Items 331-340 of 486

Set Descending Direction
per page
Page
Compare Products
  1. Remove This Item
Compare
Clear All
Shop By
Now Shopping by
  1. Category Reciprocating Pumps - Diaphragm, Piston, Plunger Remove This Item
Clear All
Shopping Options
Category
  1. Air Operated Double Diaphragm Pumps 103 items
  2. Cast Iron Pumps 58 items
  3. Chemical Feed Pumps 123 items
  4. Chemical Processing Pumps 95 items
  5. Corrosion Resistant Plastic 106 items
  6. Diaphragm Pumps 153 items
  7. Drainage Dewatering Pumps 43 items
  8. Dry Running Pumps 156 items
  9. Electric Diaphragm Pumps 59 items
  10. Metal Alloy Pumps 83 items
  11. Metering Pumps 105 items
  12. Non-Metallic Pumps 72 items
  13. Piston Pumps 4 items
  14. Plunger Pumps 278 items
  15. Solids Handling Pumps 101 items
Phase (Ø)
  1. Single (1) 52 items
  2. Three (3) 1 item
Voltage (Range)
  1. 110-120 50 items
  2. 208-240 1 item
  3. 110-120/220-240 5 items
  4. 220-240 1 item
  5. 460-480 1 item
  6. 12/24/36 VDC 26 items
Horse Power (HP)
  1. 1/2 1 item
  2. 1 1/2 5 items
  3. 2 15 items
  4. 2 1/2 3 items
  5. 3 12 items
  6. 3 1/2 4 items
  7. 4 9 items
  8. 5 10 items
  9. 5 1/2 5 items
  10. 6 11 items
  11. 7 10 items
  12. 8 7 items
  13. 9 6 items
  14. 10 5 items
  15. 11 7 items
  16. 13 10 items
  17. 15 1 item
  18. 18 1 item
  19. 25 4 items
inlet size
  1. Less than 1in 211 items
  2. 1in 47 items
  3. 1 ½" 37 items
  4. 2in 16 items
  5. 2 ½" 50 items
  6. 3" 9 items
  7. 4" 2 items
PRICE $
$  -  $
Manufacturer
  1. All-Flo Pumps 83 items
  2. AMT Pumps 6 items
  3. Aquatec Pumps 2 items
  4. Barmesa Pumps 1 item
  5. Barnes Pumps 2 items
  6. Flojet Pumps 20 items
  7. General Pump 271 items
  8. Graco Pumps 1 item
  9. Hypro Pumps 5 items
  10. March Pumps 2 items
  11. Myers-Seth 4 items
  12. Pulsafeeder 31 items
  13. Pumptec 6 items
  14. Remco 35 items
  15. Riverside 15 items
  16. Tsurumi 2 items
Motor
  1. Air-Pneumatic 101 items
  2. Diesel Engine 3 items
  3. Gas Engine 9 items
  4. Hermetically Sealed 4 items
  5. ODP 4 items
  6. TEFC 20 items
  7. TENV 41 items