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Cole-Parmer Technical Library

Guide to Liquid Pumps

Use the guide below to help you select the best type of pump for your application. This information is intended as a general guideline and will not hold true for all pumps within a classification; check individual pump specifications on the given product pages for complete details.

Pump type Max flow
ranges
Max
pressure
Self-
priming
Pulseless
flow
Fluid
viscosity
Particulate
matter
Run
dry
Advantages
GPM L/min
Air-operated
diaphragm
5.0 to
225
19.0 to
851
Up to
125 psi
Excellent Fair Medium Yes Yes Use for highly viscous or particulate-laden
fluids and where electric is not available
Bellows 0.008 to
26.4
0.03 to
100
Up to
73 psi
Good Poor Medium Yes Yes Can pump liquids or gases
Centrifugal 2.3 to
1200
8.7 to
4542
Up to
275 psi
Poor Excellent Light No No Fluid transfer at high flow rates
and low pressures
Diaphragm 0.003 to
5.2
0.01 to
19.7
Up to
300 psi
Good Poor Medium No Yes High-accuracy; for applications
such as pH/ORP control
Double-
diaphragm
1.0 to
4.0
3.79 to
15.1
Up to
95 psi
Excellent Fair Medium Yes Yes Use for viscous or
particulate-laden fluids
Drum 6.0 to
63.0
22.7 to
238
Up to
35 psi
Poor Excellent Medium No No Economical. No electrical parts
Flexible
impeller
3.8 to
50.0
14.4 to
189
Up to
60 psi
Excellent Excellent Light No No Low-cost utility pump
Flexible
liner
1.0 to
10.0
3.8 to
37.8
Up to
50 psi
Excellent Excellent Medium Yes Yes Gentle pumping action uses no
seals—pulseless, can run dry
Gear 0.006 to
74.0
0.026 to
280
Up to
1500 psi
Poor Excellent Medium No No Pulseless flow at high pressures
Hand 2.0 to
48
7.6 to
181.7
Good Fair Light No No Economical. No electrical parts
Hose 0.66 to
68
2.5
257.4
Up to
220 psi
Excellent Poor Medium Yes Yes Noncontaminating; Use for high flow and
high pressure applications
Ismatec™
peristaltic
0.00002
to 1.43
0.00008
to 5.4
Up to
22 psi
Excellent Fair Heavy Yes Yes Noncontaminating; high accuracy; available
in a wide variety of tubing materials;
Manostat®
peristaltic
0.0008 to
1.3
0.003 to
5.0
Up to
25 psi
Excellent Fair Heavy Yes Yes Noncontaminating; available in
a wide variety of pump materials
Masterflex
peristaltic
0.0000034
to 12.0
0.013
45
Up to
100 psi
Excellent Fair Heavy Yes Yes Noncontaminating; available in
a wide variety of pump materials
Nutating disc 0.25 to
1.0
0.95 to
3.8
Up to
15 psi
Good Poor Medium Yes Yes PTFE wetted parts;
positive displacement
Piston 0.004 to
107
0.015 to
405
Up to
5000 psi
Good Poor Medium No Yes Highest pressure and accuracy;
ideal for HPLC applications
Pressure
Washer
2.0 to
4.0
7.6 to
15.1
Up to
3000 psi
N/A Excellent Light No No High pressure capabilities;
portability, heating
Progressing
cavity
0.5 to
13
1.9 to
49
Up to
100 psi
Fair Excellent Very
heavy
Yes No Pulseless flow for highly viscous
or particulate-laden fluids
Rotary vane 0.75 to
4.3
2.8 to
16.3
Up to
240 psi
Fair Very
good
Light No No High-pressure capabilities;
low shear
Submersible 3.0 to
180
11.4 to
681.3
Up to
50 psi
Poor Excellent Light No No Use for emptying tanks or sumps
Syringe 0.002 to
0.04
0.008 to
0.15
Up to
40 psi
N/A Excellent Light No Yes Low flow rates at high pressures
Related Links: Printer-friendly page

Complete Selection of Centrifugal Pumps
Complete Selection of Drum and Hand Pumps
Complete Selection of Gear Pumps
Complete Selection of Ismatec Pumps
Complete Selection of Masterflex Peristaltic Pumps
Complete Selection of Metering Pumps
Complete Selection of Positive Displacement Pumps

General Pump FAQs
Guide to Liquid Pumps
Liquid Pump Installation Information
Liquid Pump Terminology
Liquid Pumps Technical Equations and Information Tables
Pump Types and Definitions

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