My Cart

Reciprocating Pumps - Diaphragm, Piston, Plunger

These pumps have a diaphragm, piston or plunger which is reciprocating back and forth through a fixed stoke length. The diaphragm pumps use a circular semi-flat membrane that is flexed from a concave to a convex shape within a sealed chamber. There is no actual sliding contact of parts in the pumping chamber and therefore these pumps can handle solids, slurries, fibrous and very thick liquids quit well. Most diaphragm pumps are air operated, but electric do exist. Electric models are typically very small with several individual diaphragms working in series being driven by a rotating angled cam or a single diaphragm being driven by a mechanical connection to a solenoid. In this case, they are typically designed as metering pumps. Piston pumps like the name implies have a piston, ceramic typically, reciprocating within a very tight tolerance cylinder. Because of their materials of construction and mechanical design, they produce extremely high discharge pressures. By making them with several pistons working together in a single head a semi-steady flow can be obtained. With any of these pumps special consideration must be given to the cyclic pressure or hydraulic pulsation’s which naturally occur.Typical Positive Displacement Reciprocating pumps include AODD, single diaphragm, electric diaphragm, metering or proportioning and piston to name a few.
View as List Grid

Items 31-40 of 100

Set Descending Direction
per page
Page
  1. 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
  2. All-Flo - A100-FPK-TTKT-S70: pvdf Air Operated Double Diaphragm Pump

    All-Flo Pumps

    Kynar Air Operated Double Diaphragm Pump

    A100-FPK-TTKT-S70
    $3,660.32

    Kynar PVDF Air AODD Pump 1/4". Air operated Diaphragm pump. Suitable for strong acids and bases. Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Repl...

    1" KT-10 Kynar Teflon Learn More
    Add to Wish List Add to Compare
  3. All-Flo - A100-FPP-SSPE-S70 polypro Air Operated Double Diaphragm

    All-Flo Pumps

    PolyPro 1" Air Operated Double Diaphragm Pump

    A100-FPP-SSPE-S70
    $1,737.56

    PolyPro Air AODD Pump 1". Chemical double diaphragm pump made in USA. Featuring All-Flo's 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 PE...

    1" PE-10 PolyPro Santo Learn More
    Add to Wish List Add to Compare
  4. All-Flo - A100-FPP-GGPN-S70 polypro Air Operated Double Diaphragm

    All-Flo Pumps

    PolyPro Air Operated Double Diaphragm Pump

    A100-FPP-GGPN-S70
    $2,857.80

    PolyPro Air AODD Pump 1", Geolast diaphragm. Chemical double diaphragm pump made in USA. Featuring All-Flo's Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-elec...

    1" PE-10 PolyPro Geolast Learn More
    Add to Wish List Add to Compare
  5. All-Flo - A100-FPP-TTPT-S70 polypro Air Operated Double Diaphragm

    All-Flo Pumps

    PolyPro Air Operated Double Diaphragm Pump

    A100-FPP-TTPT-S70
    $2,143.32

    PolyPro Air AODD Pump 1", PTFE diaphragm. Chemical double diaphragm pump made in USA. Featuring All-Flo's Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electri...

    1" PE-10 PolyPro PTFE Learn More
    Add to Wish List Add to Compare
  6. All-Flo Stainless 1/2" diaphragm pump A050-NA3-VV3V-000

    All-Flo Pumps

    Air Diaphragm pump Stainless

    A050-NA3-VV3V-000
    $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 Learn More
    Add to Wish List Add to Compare
  7. 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
  8. AMT electric diaphragm pump

    AMT Pumps

    2" Electric Diaphragm Trash Pump

    338E-96
    $3,437.19

    New model 338E-96 Powered by 1.5HP electric motor. AMT 2" Diaphragm pumps features 2-stage, 44 to 1 gear reduction with a large diameter output gear and heavy duty ball bearing construction. ALSO AVAILABLE IN 1-PHASE,115/230V Often referred to as ...

    1.5HP 115/230v Learn More
    Add to Wish List Add to Compare
  9. All-Flo AL-30E Diaphragm pump Aluminum Air Operated Diaphragm Pump

    All-Flo Pumps

    Aluminum Air Operated Diaphragm Pump

    AL-30E
    $3,110.25
    Aluminum AODD Pump 3". Lube-free air valve, Non-stalling, No vent holes for corrosive fumes to get into, All plastic air system are corrosion resistant. Non-electrical. Models available in PP, PVDF, Nylon, Conductive Nylon, Al and 316SS from .2...
    Aluminum EPDM 3" Learn More
    Add to Wish List Add to Compare
  10. Riverside_DP2B diaphragm pump

    Riverside

    Honda 5.5 hp diaphragm pump 2 in.

    DP2H
    $1,702.00

    Honda 5.5 hp diaphragm pump 2 in., gas engine

    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 adv...

    2" 5.5HP Learn More
    Add to Wish List Add to Compare
View as List Grid

Items 31-40 of 100

Set Descending Direction
per page
Page
Compare Products
  1. Remove This Item
Compare
Clear All
Shop By
Now Shopping by
  1. Category Solids Handling Pumps Remove This Item
Clear All
Shopping Options
Phase (Ø)
  1. Single (1) 3 items
  2. Three (3) 1 item
Voltage (Range)
  1. 110-120 1 item
  2. 208-240 1 item
  3. 110-120/220-240 3 items
  4. 220-240 1 item
  5. 460-480 1 item
Horse Power (HP)
  1. 1 1/2 1 item
  2. 2 3 items
  3. 3 2 items
  4. 3 1/2 3 items
  5. 4 3 items
  6. 5 2 items
  7. 5 1/2 2 items
inlet size
  1. Less than 1in 35 items
  2. 1in 15 items
  3. 1 ½" 8 items
  4. 2in 15 items
  5. 3" 8 items
PRICE $
$  -  $
Manufacturer
  1. All-Flo Pumps 82 items
  2. AMT Pumps 6 items
  3. Barmesa Pumps 1 item
  4. Barnes Pumps 2 items
  5. Graco Pumps 1 item
  6. Riverside 6 items
  7. Tsurumi 2 items
Motor
  1. Air-Pneumatic 83 items
  2. Diesel Engine 1 item
  3. Gas Engine 7 items
  4. Hermetically Sealed 3 items
  5. ODP 3 items
  6. TEFC 3 items