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Guide to Liquid Pumps

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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

Reference source:  http://www.coleparmer.com/TechLibraryArticle/678

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