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Home  >  Pumps > Positive Displacement Pumps

Positive Displacement Pumps

Positive Displacement Pumps

We offer the widest selection of pumps and fluid handling instruments in the industry. Plus we can special order virtually any pump your application may require!

Air-Powered Pumps contain no heat-generating electrical components, allowing safe, explosion-proof operation in hazardous areas. Pumps require input from a compressed-air source; available in bellows and diaphragm models.

Bellows Pumps move fluid or gases through the cavity created by reciprocating bellows coupled to a driving rod.

Diaphragm Pumps pulse one or two flexible diaphragms to gently displace liquid; check valves control direction of fluid flow.

Flexible Impeller Pumps contain an elastomeric impeller that traps fluid between blades and sweeps it through the pump housing. These low-cost utility pumps are ideal for general transfer.

Flexible Liner Pumps gently push fluid between the outer surface of a flexible liner and the inner surface of a rotating body block; can pump 20% soft solids.

Hose Pumps offer a high-capacity, high-pressure option that operate on the peristaltic hose pump technology. Product is available in both dry-running and lubricated designs.

Pressure Washers/Plunger Pumps combine a high-pressure pump with spray accessories to provide a self-contained high-pressure washing system.

Progressing Cavity Pumps (rotary screw pumps) force high-viscosity (up to 20,000 cp) and particulate-laden fluids through the cavity between the screw-style rotor and stator.

Roller Pumps have spinning rollers that create a vacuum to draw in liquid to carry to the outlet port. They provide no metal to metal contact; fluid contacts only the rollers or pump housing.

Rotary Lobe Pumps are excellent for CIP/SIP applications where cleanability of the machine needs to be maintained. They also are ideal for flows at higher pressures.

Rotary Vane Pumps are similar to flexible impeller pumps, except that they have a rigid impeller made of carbon/graphite. Pumps provide high-pressure, low-shear pumping.
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EW-74000-80 Representative Photo Only. Sandpiper® Air-Powered Double-Diaphragm PVDF Pump, PVDF, 4 GPM, Santoprene<small><sup>&reg;</sup></small> Diaphragm

Sandpiper Air-Powered Double-Diaphragm PVDF Pump, PVDF, 4 GPM, Santoprene Diaphragm

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 15.1,Max flow rate GPM 4
EW-74000-80
Usually ships in 12 days.
$381.00 USD/EACH

Qty:
Representative photo only Explosion proof Three phase NEMA Type C face Motor 1 2 Hp 1800 RPM 208 230 460 VAC

Explosion-proof Three-phase NEMA Type C-face Motor, 1/2 Hp, 1800 RPM, 208-230/460 VAC

Product Type Three-phase explosion-proof motors,hp 1/2,Model 56T17G5315/ G829
EW-71007-25
Usually ships in 6 days.
$604.00 USD/EACH

Qty:
Representative photo only Air operated double diaphragm drum pump Kynar PVDF with TPO diaphragm 12 GPM

Air-operated double-diaphragm drum pump; Kynar PVDF with TPO diaphragm, 12 GPM

Product Type Air-Operated Drum Pumps,Max temperature º C 212,Brand Kynar
EW-74024-06
Usually ships in 7 days.
$1,234.00 USD/EACH

Qty:
EW-76804-46 Image is for illustrative purposes only. Please refer to product description

Industrial progressing cavity pump with an AC VFD drive, 2.5 - 226 GPH

Product Type Progressing Cavity Pumps,Min flow rate mL/min 158.3,Max temperature º C 93
EW-76804-46
Usually ships in 15 days.
$2,504.00 USD/EACH

Qty:
EW-74026-10 Air-operated powder pump, 18 GPM, 316 SS, Santoprene, EPDM

Air-operated powder pump, 18 GPM, 316 SS, Santoprene, EPDM

Product Type Powder Pumps,Max flow rate LPM 98.4,Duty cycle Continuous
EW-74026-10
Usually ships in 7 days.
$3,159.00 USD/EACH

Qty:
EW-76804-70 Sanitary progressing cavity pump with an AC VFD drive, 0.05 - 3.4 GPH

Sanitary progressing cavity pump with an AC VFD drive, 0.05 - 3.4 GPH

Product Type Progressing Cavity Pumps,Min flow rate mL/min 3.3,Max temperature º C 93
EW-76804-70
Usually ships in 10 days.
$6,092.00 USD/EACH

Qty:
EW-74440-55 Representative Image. Check individual details.

Air-operated Diaphragm Pump, FDA-compliant, 45 Max GPM, 1-1/2" Tri-clamp, PTFE

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 170.3,Max pressure 100 psi
EW-74440-55
Call 1-888-358-4705 for availability.
$2,169.00 USD/EACH

Qty:
Representative photo only Mini Coalescing Air Filter 0 3 micron coalescing filter Max 49 SCFM Max Pressure 150 PSIG 1 4 NPT F connection

Mini Coalescing Air Filter, 0.3 micron coalescing filter, Max 49 SCFM, Max Pressure 150 PSIG, 1/4" NPT(F) connection

Product Type Compressor Filters/Regulators,Max pressure psi 150,Brand ARO-Flo
EW-75300-77
In stock.
$53.50 USD/EACH

Qty:
EW-76804-57 Image is for illustrative purposes only. Please refer to product description

Industrial progressing cavity pump with a Spaggiari drive, 0 - 693 GPH

Product Type Progressing Cavity Pumps,Min flow rate mL/min 0,Max temperature º C 93
EW-76804-57
Usually ships in 10 days.
$2,189.00 USD/EACH

Qty:
EW-83254-18 Cole-Parmer<small><sup>&reg;</sup></small> Compressed Air Nozzle, Polyacetate, Flat Nozzle

Cole-Parmer Compressed Air Nozzle, Polyacetate, Flat Nozzle

Product Type Spray Nozzle Valves,Material Polyacetate,Brand Cole-Parmer
EW-83254-18
In stock.
$55.00 USD/EACH

Qty:
Representative photo only Air Driven Compact Diaphragm Pumps 316 Stainless Steel Air Supply Pressure 15 psig

Air Driven Compact Diaphragm Pumps, 316 Stainless Steel, Air Supply Pressure 15 psig

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 3,Max pressure 87 psig
EW-07032-12
Usually ships in 15 days.
$965.00 USD/EACH

Qty:
EW-74000-00 Representative Photo Only. Sandpiper® Air-Powered Double-Diaphragm Polypropylene Pump, Polypropylene, 14 GPM, Santoprene<small><sup>&reg;</sup></small> Diaphragm

Sandpiper Air-Powered Double-Diaphragm Polypropylene Pump, Polypropylene, 14 GPM, Santoprene Diaphragm

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 53,Max flow rate GPM 14
EW-74000-00
Usually ships in 9 days.
$551.00 USD/EACH

Qty:
Representative photo only ATEX approved stainless steel double diaphragm pump 42 GPM Santoprene diaphragm

ATEX approved stainless steel double-diaphragm pump, 42 GPM, Santoprene diaphragm

Product Type Air-Powered Diaphragm Pumps,Max flow rate LPM 159,Max pressure 125 psi
EW-74016-20
Usually ships in 14 days.
$1,800.00 USD/EACH

Qty:
Representative photo only Polypropylene flexible liner pump Nordel rubber liner 10 GPM 115 230 VAC

Polypropylene flexible liner pump, Nordel rubber liner, 10 GPM, 115/230 VAC

Product Type Flexible Liner Pumps,Max flow rate LPM 37.9,Max pressure 50 psi
EW-79440-30
Usually ships in 5 days.
$760.00 USD/EACH

Qty:
Representative photo only Cole Parmer Inert Solenoid Self Priming Micro Pumps 50 microL 24 VDC PPS EPDM

Cole-Parmer Inert Solenoid Self Priming Micro Pumps, 50 microL, 24 VDC, PPS, EPDM

Product Type Diaphragm Pumps,Max pressure 5 psi,Max temperature º C 70
EW-73120-24
Call 1-888-358-4705 for availability.
$238.00 USD/EACH

Qty:
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