Variable Volume Pump
Configuration "B"
250, 750 & 1250 microliter

Two Volume Ranges: 250, 750 & 1250 µl per full stroke,
0.5, 1.5 & 2.5 µl per single step
  • Lightweight - Approx. 300 gms.
  • Low Power - 2.3 W/ph
  • Up to 750 µl/sec dispense rate
  • Bipolar stepper motor
  • 1/4-28 Flat bottom boss ports
  • Prototype drive kit available
    • NOTES:
    1. Drive current: 250 and 750 µl pumps: 275 mA RMS per phase, 1250 pump: 325 mA RMS per phase. Chopper or current drive recommended for optimum drive characteristics. Consult local Lee sales office for circuit recommendations.
    2. Mounting screws: 2 X #4 [3.0mm]
    3. Maximum discharge pressure: 7.5 to 30 psig depending on pump model. Consult factory for more performance characteristics.
    4. Bipolar motor type.
    5. External valving required.
    6. Wetted surfaces: Polyetheretherketone - Victrix® PEEK , or PMMA (Acrylic), zirconia ceramic, UHMW PE
    7. For complete volume and increment options, consult local sales office.
    LPV Pump Part Number Matrix - Stocked
    Pump Volume Range
    Full Step Volume Increment
    PEEK Pumphead
    Sapphire Piston
    PEEK Pumphead
    YTZP Piston
    PMMA (Acrylic) Pumphead
    YTZP Piston
    250 µl
    0.5 µl
    LPVX0503750B
    LPVX0502150B
    LPVX0502300B
    750 µl
    1.5 µl
    LPVX0502200B
    LPVX0502350B
    1250 µl
    2.5 µl
    LPVX0502250B
    LPVX0502400B
    Link to Variable Volume Pump Manual
    For more information, please send us your application information via our ASK LEE service. Or contact our application engineers in the USA at 1-800-LEE-PLUG or our representatives around the world.
    Copyright 01/2003 by The Lee Company, USA
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