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Choosing the Correct Pump |
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Written by Lisa J Fulghum
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  WPI carries a wide variety of fluid handling tools utilizing three different technologies:
-
 peristaltic pumps
- syringe pumps
- pneumatic injectors
The range of applications and the criteria used to select a particular pump or injector is broad and complex and we encourage you to phone (866.606.1974 in the USA) or email (
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
) us and speak to a technical support specialist. In the meantime, we have tried to simplify the process by listing all of the pumps and injectors in a chart that sorts them by technology, flow range and special features.
 Special features tell you about applications of the pump or technical aspects that are more properly discussed in a technical manual than a catalog entry. Many of the syringe pumps can be had with an alarm option that alerts you to end of travel or blocked flow and a “P” option that allows programmable flow and volume profiles without using the RS232 computer interface.
Frequently used terms:
- Infuse/Withdraw (I/W): Describes a feature of a syringe pump whereby the syringe plunger is held by the pusher so the motor can pull the plunger back, withdrawing fluid, as well as pushing the plunger to infuse it.
- Push/Pull: A feature of syringe pumps which use two syringes mounted back to back so movement of the pusher block will simultaneously withdraw fluid into one syringe and infuse an equal amount from the other.
- RS232: This is a serial interface. Some pumps in the WPI line can be controlled by computer. Simple programs can be created to control the pump rate, the overall volume. Flow ramps or other profiles and temporal sequences can be written. In addition, pumps can be daisy-chained together to create a pump network. In such a network, each pump has its own address and can be controlled separately by the program.
Part No.
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Pump Type |
Fluid Range |
Number of Channels |
Special features |
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Peripro-2HS |
Peristaltic |
3.5-280mL/min with supplied #17 tubing
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2 |
Calibrated output Replaceable tubing cartridges |
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Peripro-4HS |
Peristaltic |
3.5-280mL/min with supplied #17 tubing |
4 |
Calibrated output Replaceable tubing cartridges |
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Peripro-4LS |
Peristaltic |
0.2-18mL/min with supplied #14 tubing |
4 |
Calibrated output Replaceable tubing cartridges |
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Peripro-8LS |
Peristaltic |
0.2-18mL/min with supplied #14 tubing |
8 |
Calibrated output Replaceable tubing cartridges |
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MityFlex |
Peristaltic |
1.7-800 mL/min |
1 |
High Volume |
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MINISTAR |
Peristaltic |
0.06-2.6mL/min with 1mm tubing
0.35-14mL/min with 2.4mm tubing
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1 |
Compact design, Remote control |
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AL-1000 |
Syringe |
0.000073-1699mL/hr |
1 |
Push/pull |
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AL-2000 |
Syringe |
0.000073-1699mL/hr |
2 |
Push/pull (2 networked pumps) |
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SP100i |
Syringe |
0.0001-519mL/hr |
1 |
Basic 1 Channel |
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SP101i |
Syringe |
0.001µL/hr – 35mL/min |
2 |
Micro Dialysis application |
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SP200i |
Syringe |
0.001µL/hr - 145mL/min |
2 |
RS232 TTL/Footswitch |
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SP220i |
Syringe |
0.001µL/hr - 21mL/min |
10 |
RS232 Infuse Only |
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SP250i |
Syringe |
0.001µL/hr - 21mL/min |
4 |
RS232 Infuse Only |
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SP210iw |
Syringe |
0.001µL/hr - 145mL/min |
2 |
RS232 Infuse/Withdraw |
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SP230iw |
Syringe |
0.001µL/hr - 21mL/min |
10 |
RS232 Infuse/Withdraw |
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SP120p |
Syringe |
0.1 µL/hr – 127mL/hr |
1+1 |
push pull, single cycle |
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SP260p |
Syringe |
0.001µL/hr - 86mL/min |
2+2 |
RS232 push pull, single cycle |
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SP210c |
Syringe |
0.001µL/hr - 86mL/min |
2+2 |
RS232 push pull, continuous |
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503613(VSP1) |
Syringe |
0.1mL/hr - 600mL/hr |
1 |
Safety features include two-hour battery operation |
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UMP3 |
Syringe |
0.03nL/min - 10µL/sec |
1 |
Ultra Micro Infuse/Withdraw RS232 |
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B203XV |
Syringe |
Bolus, 2.3-69 mL/Injection |
1 |
Oocyte Injector, Infuse only |
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MMP |
Syringe |
Manual 100 µL-1mL syringe |
1 |
Manual |
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DMP |
Syringe |
Manual 100 µL-1mL syringe |
1 |
Digital readout Micrometer |
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PV820 |
Pneumatic |
Bolus/Continuous Pressure, Duration and Pipette dependent |
1 |
Injection Pressure and Holding Pressure |
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PV830 |
Pneumatic |
Bolus/Continuous Pressure, Duration and Pipette dependent |
1 |
Injection Pressure and Holding Pressure and Vacuum |
If you
have any questions regarding the pumps, give us a call toll-free
at 866.606.1974 or email us at
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
This e-mail address is being protected from spam bots, you need JavaScript enabled to view it
.
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Last Updated ( Wednesday, 20 July 2011 )
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