Choosing the Correct Pump

 WPI carries a wide variety of fluid handling tools utilizing three different technologies:PeriPro

  • peristaltic pumps
  • syringe pumps
  • pneumatic injectorsAladdin Pump, Syringe Pump

PV830

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 (customerservice@wpiinc.com) 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.

SP-220izSpecial 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.
Order code Pump Type Fluid Range Number of Channels Special features
Peripro-2HS Peristaltic 3.5-280mL/min with supplied #17 tubing 2 Calibrated output Replaceable tubing cartridges
Peripro-4HS Peristaltic 3.5-280mL/min with supplied #17 tubing 4 Calibrated output Replaceable tubing cartridges
Peripro-4LS Peristaltic 0.2-18mL/min with supplied #14 tubing 4 Calibrated output Replaceable tubing cartridges
Peripro-8LS Peristaltic 0.2-18mL/min with supplied #14 tubing 8 Calibrated output Replaceable tubing cartridges
MINISTAR Peristaltic 0.06-2.6mL/min with 1mm tubing
0.35-14mL/min with 2.4mm tubing
1 Compact design, Remote control
AL-1000 Syringe 0.000073-1699mL/hr 1 Push/pull
AL-2000 Syringe 0.000073-1699mL/hr 2 Push/pull (2 networked pumps)
SP100i Syringe 0.0001-519mL/hr 1 Basic 1 Channel
SP101i Syringe 0.001µL/hr – 35mL/min 2 Micro Dialysis application
SP200i Syringe 0.001µL/hr - 145mL/min 2 RS232 TTL/Footswitch
SP220i Syringe 0.001µL/hr - 21mL/min 10 RS232 Infuse Only
SP250i Syringe 0.001µL/hr - 21mL/min 4 RS232 Infuse Only
SP210iw Syringe 0.001µL/hr - 145mL/min 2 RS232 Infuse/Withdraw
SP230iw Syringe 0.001µL/hr - 21mL/min 10 RS232 Infuse/Withdraw
SP120p Syringe 0.1 µL/hr – 127mL/hr 1+1 push pull, single cycle
SP260p Syringe 0.001µL/hr - 86mL/min 2+2 RS232 push pull, single cycle
SP210c Syringe 0.001µL/hr - 86mL/min 2+2 RS232 push pull, continuous
UMP3 Syringe 1nL/min - 10µL/sec 1 Ultra Micro Infuse/Withdraw RS232
NANOLITER2010 Syringe Bolus, 2.3-69nL/Injection 1 Oocyte Injector, Infuse only
MMP Syringe Manual 100 µL-1mL syringe 1 Manual
DMP Syringe Manual 100 µL-1mL syringe 1 Digital readout Micrometer
PV820 Pneumatic Injected volumes from 1pL to nanoliters 1 Injection Pressure and Holding Pressure
PV830 Pneumatic Injected volumes from 1pL to nanoliters 1 Injection Pressure and Holding Pressure and Vacuum

See Selection