Fittings-Chromatography-2014 - page 396

IDEXHealth&Science’s Ismatec
®
pumpdrivesareavailablewith three
pump types—peristaltic, gear, andpiston— tomake a complete
pumpingsystem.Thechartbelowwillhelpyouchoose the rightpump
technology.Onceyoufind thedesiredpumping technology,proceed
to the sectionpages listedand choose thepump/drive combination
best suited for your application.
SELECTIONCRITERIA
PERISTALTICPUMPS
GEARPUMPS
ROTARYPISTONPUMPS
Pages
92
110
116
FlowRateMin. toMax.
< 0.001mL/min to 13 L/min
1mL/min to 7 L/min
0.025mL/min–2.3 L/min
Number of Channels
1–24
1
1
Differential Pressure
Max. 2.5bar (36psi)
Max. 5.6bar (81psi)
Max. 6.9bar (100psi)
Suction Lift (water)
7–8m
< 1m
~5m
DeadVolume
PracticallyNone
5–45mL
Very Small
Chemical Resistance
Depends onTubingMaterial
High
VeryHigh
Accuracy andRepeatability
High
High
1
VeryHigh
Self-Priming
Yes
Possible
4
Possible
Sensitive toDry-Running
No
Yes
Yes
SyphoningEffect
No
Yes
No
Pumping
Gently= LowShearingForces
Yes
No
No
Under SterileConditions
Yes
No
No
InBothDirections
Yes
Yes
4
Yes
Pulse-Free
2
Yes
2
Contamination-Free
Yes
No
No
Media
ContainingParticles
VeryGood
No
Max. 0.8mmØ
Viscous
VeryGood
Possible
Good
Containing LivingCells
VeryGood
No
No
Foaming
VeryGood
No
No
Corrosive/Aggressive
3
Good
VeryGood
Gas
3
No
4
1
Requiresnon-returnvalve.
2
Pumpingwith lowpulsationpossible; dependson thepumphead.
3
Dependson the tubingmaterial.
4
Dependson thepumphead.
LABORATORYPUMPS
91
Introduction
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