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Home  >  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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Unloader (Pressure Relief) Valve, Brass, 500 to 2500 PSI Brass Unloader

  • Product Type: Diaphragm Pumps
  • Qty/ea: 1
  • Manufacturer number: C62ABBVSSEF
Mfg Part# C62ABBVSSEF
DO-75421-83
Usually ships in 8 days.
$439.00 USD/EACH

Qty:

Unloader (Pressure Relief) Valve, Brass, 75 to 500 PSI Brass Unloader

  • Product Type: Diaphragm Pumps
  • Qty/ea: 1
  • Manufacturer number: C62AABVSSEF
Mfg Part# C62AABVSSEF
DO-75421-82
Usually ships in 8 days.
$437.00 USD/EACH

Qty:

High-pressure, brass-bodied rotary vane pump, 4.3 GPM, 115/230 VAC

  • Product Type: Rotary Vane Pumps
  • Wetted materials: brass body, 303 SS rotor, carbon graphite liner and vanes
  • Port size: 3/8" NPT(F)
Mfg Part# PA801-75MT
DO-79410-15
Usually ships in 8 days.
$827.25 USD/EACH

Qty:

Industrial progressing cavity pump with 56C motor mount, 0.05 - 7 GPH

  • Product Type: Progressing Cavity Pumps
  • Flow range: 0.05 to 7 GPH
  • Flow range: 0.2 to 26.5 LPH
Mfg Part# MDS 0005-24 56C-BARESHAF
DO-76804-30
Available for order
or call 1-888-358-4712 to order
$1,883.00 USD/EACH

Qty:

Multi-Position Double-Diaphragm Pump, PP/Santoprene, 1.85 GPM, 115 VAC

  • Product Type: Diaphragm Pumps
  • Wetted materials: Polypropylene body, Santoprene® diaphragm & valves
  • Pressure: 40 psi min
Mfg Part# D3835H5011A
DO-75000-00
Available for order
or call 1-888-358-4712 to order
$282.00 USD/EACH

Qty:

PTFE flexible liner pump, Nordel rubber liner, 5 GPM, 115/230 VAC

  • Product Type: Flexible Liner Pumps
  • Wetted materials: PTFE body, Hypalon® liner
  • Port size: 1" hose barb
Mfg Part#
DO-79441-20
Usually ships in 10 days.
$1,114.50 USD/EACH

Qty:

High-pressure, 303 stainless steel rotary vane pump, 2.3 GPM, 115/230 VAC

  • Product Type: Rotary Vane Pumps
  • Wetted materials: 303 SS body & rotor, carbon graphite liner and vanes
  • Port size: 3/8" NPT(F)
Mfg Part# PA411-50MT
DO-79411-10
In stock.
$977.75 USD/EACH

Qty:

Industrial progressing cavity pump with an AC EPT VFD, 0.7 - 39 GPH

  • Product Type: Progressing Cavity Pumps
  • CE Compliance: Yes
  • Flow range: 2.46 LPH
Mfg Part# MDP 006-12 - AC EPT VFD
DO-76804-11
Available for order
or call 1-888-358-4712 to order
$2,185.00 USD/EACH

Qty:

Moderate-Flow, flexible impeller pump, neoprene, 5.8 GPM, 17.3 psi, 115 VAC

  • Product Type: Flexible Impeller Pumps
  • Wetted materials: Bronze body; neoprene impeller and seal; 316 SS shaft
  • Port size: 1/2" NPT(F)
Mfg Part# 18610-0271
DO-07036-10
Available for order
or call 1-888-358-4712 to order
$825.00 USD/EACH

Qty:

Sanitary progressing cavity pump with 56C motor mount, 3.7 - 831 GPH

  • Product Type: Progressing Cavity Pumps
  • Flow range: 3.7 to 831 GPH
  • Flow range: 14 to 3145.7 LPH
Mfg Part# MDCS 05-6LT 56C-BARESHAF
DO-76804-67
Available for order
or call 1-888-358-4712 to order
$5,608.00 USD/EACH

Qty:

Multi-Position Double-Diaphragm Pump, PP/Santoprene, 1.85 GPM, 230 VAC

  • Product Type: Diaphragm Pumps
  • Wetted materials: Polypropylene body, Santoprene® diaphragm & valves
  • Pressure: 40 psi min
Mfg Part# D3935H5011A
DO-75000-05
In stock.
$299.00 USD/EACH

Qty:

High-Flow Air-Operated Double-Diaphragm Pump, PP/Neoprene, 50 GPM

  • Product Type: Air-Powered Diaphragm Pumps
  • Material: Neoprene Diaphragm
  • Port size: 1" ANSI
Mfg Part# 75310-35
DO-75310-35
Usually ships in 14 days.
$1,265.00 USD/EACH

Qty:

Industrial progressing cavity pump with an AC VFD drive, 2.5 - 226 GPH, 90 psi

  • Product Type: Progressing Cavity Pumps
  • Flow range: 2.5 to 226 GPH
  • Flow range: 9.5 to 855.5 LPH
Mfg Part# MD 025-6L - AC EPT VFD
DO-76804-45
Available for order
or call 1-888-358-4712 to order
$2,684.00 USD/EACH

Qty:

Sandpiper Air-Powered Double-Diaphragm PVDF Pump, PVDF, 14 GPM, PTFE Diaphragm

  • Product Type: Air-Powered Diaphragm Pumps
  • Wetted materials: Polypropylene, PVDF, and conductive acetal with TPE (thermal plastic elastomers) and PTFE options in diaphragms and check valves
  • Port size: 1/2" NPT(F)
Mfg Part# S05B2K2TPNS000
DO-74000-46
Usually ships in 13 days.
$1,858.00 USD/EACH

Qty:

Surge Suppressors, 1" Flange, Aluminum Body, PTFE-Neoprene Diaphragm

  • Product Type: Surge Dampeners
  • Wetted materials: Aluminum housing, PTFE diaphragm
  • Port size: 1" flange
Mfg Part# TA1-NG1A
DO-75008-30
Usually ships in 12 days.
$1,220.00 USD/EACH

Qty:

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