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 91-100 of 481

Set Descending Direction
per page
Page
  1. All-Flo Stainless 1/2" diaphragm pump A050-NA3-GT3N-S70

    All-Flo Pumps

    Air Diaphragm pump Stainless

    A050-NA3-GT3N-S70
    $1,867.80

    Stainless Steel Diaphragm Air AODD Pump 1/2". 

    All-Flo pneumatic diaphragm pumps are used throughout industry, chemical, paints, solvents and paints. Standard (Suction Right / Discharge Right). Made in USA.

    Lube-free air valve, Non-stalling, No ...

    1/2" Stainless Geolast Learn More
    Add to Wish List Add to Compare
  2. FatBoy Demand Diaphragm Pump

    Remco

    FatBoy Demand Diaphragm Pump

    5538-1E1-69C
    $412.56

    THE PROFLO FATBOY® PUMPS UP THE VOLUME WITH 7GPM. Demanding industrial pump environments require precise engineering and quality components. The ProFlo FatBoy® was designed with both. To maximize the potential of all five diaphragm chambers, Rem...

    7GPM 60PSI 115V NPT Demand Learn More
    Add to Wish List Add to Compare
  3. Riverside Homelite 741541 flapper valve

    Riverside

    Diaphragm pump flapper kit 3"

    741541
    $49.00

    Repair 741541 flapper part Riverside Homelite mud pump DP3.

    Diaphragm pumps are positive displacement pumps. They pump a specific volume for each pump cycle. Diaphragm pumps move fluids more slowly than centrifugal pumps, but can handle mud and l...

    3" pump flapper valve Learn More
    Add to Wish List Add to Compare
  4. Remco 5536-1E1-731A 24v Demand Pump

    Remco

    24v Demand Pump

    5536-1E1-731B
    $236.00
    Demanding industrial pump environments require precise engineering and quality components葉he demand pump was designed with both. Demand pumps operated as a positive displacement pump which has a pressure switch built in. When flow is open th...
    4GPM 60PSI 24DC Learn More
    Add to Wish List Add to Compare
  5. Remco - 3323-1E1-82B: 12v Demand Pump 2GPM

    Remco

    12v Demand Pump 2.2GPM

    3313-1E1-82B
    $196.58
    Capable of continuous heavy duty workloads, the 3300
    series has built a reputation as a solid and reliable industry
    performer. The 3300 series delivers consistent Professional
    Grade results for every job you give it.
    2.2 GPM (8.23 LPM) Demand 60 PSI (4.14 BAR) Viton Santoprene 3/4″ Quick Attach 12 VDC Learn More
    Add to Wish List Add to Compare
  6. Remco 5537-1E1-58C 115v Demand Pump 5.3GPM

    Remco

    115v Demand Pump 5.3GPM

    5537-1E1-65C
    $293.22

    Demanding industrial pump environments require precise engineering and quality components—the demand pump was designed with both. Demand pumps operated as a positive displacement pump which has a pressure switch built in. When flow is open the pum...

    5.3 GPM Demand 60 PSI Viton Santoprene 1/2″ FNPT 110/120 VAC Learn More
    Add to Wish List Add to Compare
  7. riverside_dp3e-.jpg

    Riverside

    3 in. Electric diaphragm pump

    DP3E
    $1,963.00

    Riverside Pumps' rugged and reliable Diaphragm Pumps are sometimes called "mudhogs" for their ability to pump heavy mud and sludge, thicker than any centrifugal pump can handle. They also have the advantage of being able to run dry without damage,...

    115/230v Learn More
    Add to Wish List Add to Compare
  8. Pumptec 80010 Pumptec 12v 112T-075/M15 Sprayer Pump

    Pumptec

    112T-075/M15 Sprayer Pump

    80010
    $405.59
    Pumptecç—´ 12V DC spray pumps and systems make compact, efficient sprayers possible. With unmatched efficiency, Pumptecç—´ quiet pumps and systems replace gas engine-driven systems with 12V DC powered pumps to allow anywhere, anytime use. Sprayer...
    Learn More
    Add to Wish List Add to Compare
  9. FatBoy Demand Diaphragm Pump

    Remco

    FatBoy Demand Diaphragm Pump

    5538-1E1-94A
    $397.15

    THE PROFLO FATBOY® PUMPS UP THE VOLUME WITH 7GPM. Demanding industrial pump environments require precise engineering and quality components. The ProFlo FatBoy® was designed with both. To maximize the potential of all five diaphragm chambers, Remco...

    7GPM 60PSI 12VDC NPT Demand Learn More
    Add to Wish List Add to Compare
  10. Remco_Fatboy.jpg

    Remco

    12v Demand Pump 5.3GPM

    5537-1E1-82B
    $270.00

    12vdc 5.3gpm Demanding industrial pump environments require precise engineering and quality components the demand pump was designed with both. Demand pumps operated as a positive displacement pump which has a pressure switch built in. When flow is...

    5.3GPM 60PSI 12v NPT Learn More
    Add to Wish List Add to Compare
View as List Grid

Items 91-100 of 481

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 148 items
  7. Drainage Dewatering Pumps 42 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 100 items
Phase (Ø)
  1. Single (1) 51 items
  2. Three (3) 1 item
Voltage (Range)
  1. 110-120 50 items
  2. 208-240 1 item
  3. 110-120/220-240 4 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 14 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 9 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 15 items
  5. 2 ½" 50 items
  6. 3" 9 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. Pulsafeeder 31 items
  12. Pumptec 6 items
  13. Remco 35 items
  14. Riverside 14 items
  15. Tsurumi 2 items
Motor
  1. Air-Pneumatic 101 items
  2. Diesel Engine 1 item
  3. Gas Engine 9 items
  4. Hermetically Sealed 4 items
  5. ODP 4 items
  6. TEFC 20 items
  7. TENV 40 items