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Micropump A-Mount Suction Shoe Pump Head; SS/Graphite/PTFE; 0.017 mL/rev

Micropump  |   Mfr# L21834  |   Item# DO-07002-25

$939.00 USD/EACH

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  • Smooth pulseless flow provides precise, leak-free delivery of fluids
  • Suction shoe design provides higher delivery pressures and temperatures, plus increased efficiency.
Magnetically driven, precision-geared pump heads provide smooth, accurate, pulseless fluid delivery. The magnetic drive and static seals keep fluids securely inside and potential contaminants out. Chemical resistant materials handle a wide range of materials (due to wetted parts). Pump heads are compact and easy to service. Modular design offers flexibility—configure to your specific needs.

Service kits include: gears, suction shoe, shaft seals, and springs.

Call our Application Specialists for assistance.
Product Type Gear Pumps
mL/rev 0.017
Temp range -50 to 250°F
Wetted parts Body: 316 SS, Graphite gears, PTFE seals
Differential pressure (Max) 20 psi
Flow rate (min) 0.85 ml/min at 50 rpm
85 mL/min at 5000 rpm
Port size 1/8" NPT(F)
Particulates none
Run dry under 30 seconds
Relief valve No
Model L21834
Qty/ea 1
Duty cycle continuous (from 150 to 5000 rpm)
Manufacturer number L21834
Suction lift 24" H2O (at 1750 rpm)
Viscosity 0.2 to 1500 cp
Brand Micropump
Internal bypass No
Reversible No
Motor rpm 8000


at $334.00 USD/EACH

In stock.

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Questions and Answers

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Get answers from real customers and in-house experts with AnswerBox.

5 Questions | 5 Answers
Displaying questions 1-5
  • Q:

    Hi can I check with you I am trying to use this micro pump at 100 RPM. Is it possible? And also is this pump also suitable to be used with DMF chemical fluid?
    Asked on 2/1/2017 by Feng Hua from Singapore

    1 answer



      This pump head has a flow rate of 0.017 mL/rev and can be run up to 8000 rpm. For continuous duty 5000 rpm is the max. The wetted materials are 316 stainless steel, graphite, and PTFE. You can view our chemical compatibility database via the link below.

      Answered on 2/1/2017 by Danielle from Technical Support
  • Q:

    I have a 75211-50 Gear Pump with a 07002-25 pump head and would like to get flow rates of 50ml/min. I was wondering what the max flow rate is with this combo? If this cannot achieve the flows I need, what pump head should I purchase?
    Asked on 7/12/2016 by Pat

    1 answer



      The maximum flow rate you will get with this pumphead and drive is 61 ml/min. This is based on the viscosity of water and no suction lift.

      Answered on 8/24/2016 by Dan C from Technical Support
  • Q:

    Will this pump head (EW-07002-25) work with the drive (EW-75211-70) to flow at rates down to 0.6 mL/min
    Asked on 1/26/2016 by Jon

    1 answer



      Yes, this pump head and drive are compatible together, and will give you a flow of approximately 0.612 mL at the lowest speed.

      Answered on 1/26/2016 by Andrew from Technical Support
  • Q:

    We use these type gear head and digital pump.
    One of them makes noise which sounds like scratching glass when we flow 36ml/min.
    Is it the sign of out ou order? Was't our installation good?
    Asked on 7/30/2015 by Yuta Takaishi from Corvallis ,OR

    1 answer



      Please check to make sure the gears are not worn down. Also, please make sure that the gear pump is not run dry.

      Answered on 7/31/2015 by Anthony from Technical Support
  • Q:

    If the pumping fluid includes magnetic particles, will these particles be trapped by the magnetic field induced by the magnetically driven head (i.e., the particles stay at the head and not pumped out)? The particles are about 10 um in diameter. Thanks.
    Asked on 3/8/2011 by Anonymous

    1 answer

    • Staff Reviewer


      Gear pumps are not suggested for fluids with particles as they will ruin the gears. I peristaltic pump may be more appropriate in this applicaiton. Please contact us by phone or email to discuss your application and needs.

      Answered on 3/9/2011 by Jen from Technical Support
Displaying questions 1-5

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Product Reviews


by PowerReviews
Micropump L21834 A-Mount Suction Shoe Pump Head; SS/Graphite/PTFE; 0.017 mL/rev

(based on 1 review)

Reviewed by 1 customer

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(5 of 5 customers found this review helpful)


Extremely fragile, unreliable


from Carrollton, KY

About Me Academic/Professional Researcher



    • Breaks Easily
    • Clogs very easily
    • Difficult To Use
    • Extremely fragile gears

    Best Uses

      Comments about Micropump L21834 A-Mount Suction Shoe Pump Head; SS/Graphite/PTFE; 0.017 mL/rev:

      I used this product to pump chlorosilanes, which are compatible with Stainless Steel - however, corrosion was evident after one use. The graphite gear teeth are extremely fragile and any particulates in the liquid will cause the teeth to bind and break off. I would not recommend this product for use because of the graphite gears.

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