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Chemical Metering Pumps 

Standard Electronic Metering Pump

Series B Chemical Metering Pumps

LMI Series B Chemical Metering Pumps

Year after year of reliable performance.
An industry standard for over 20 years, the Series B Chemical Metering Pump is a rugged, reliable choice for the harshest environments.

Its 100% enclosed chemical resistant housing provides this unit with ultimate protection, making it ideal for corrosive chemical dosing.

With a variety of models and options available, you have full flexibility to control stroke length and frequency, pressure capacity, pulse / 4.20 mA inputs and more.


  • Rugged construction and time-tested design make the Series B pumps a consistent performer
  • With rigid chemically-resistant housing and encapsulated electronics – this pump is designed to last year after year.
  • Available with multiple options, the Series B pumps are able to accommodate a variety of applications

Standard Features

  • Adjustable stroke frequency and the flexibility of up to 1000:1 turndown ratio
  • Manually adjustable stroke length provides accurate pump output adjustment
  • NEMA 4X/IP65 enclosures for protection against corrosive environments
  • Time-tested electronics for reliable, repeatable performance
  • Totally encapsulated electronics for protection against moisture and corrosive conditions
  • Inputs for low level switch available on certain models
  • Models with external pacing for flow proportional applications
  • UL, CUL, NSF 50, NSF 61, NSF 372, CE Certifications

Optional Features

  • Four function valve
  • AUTOPRIME™ liquid End
  • High viscosity liquid end
  • Low level float switch
  • Repair & preventive maintenance kits
  • Calibration columns

Output Codes with FastPrime™ Liquid End

Max Capacity:

BX1 – 1.6 GPH (6.1 l/h)
BX2 – 2.5 GPH (9.5 l/h)
BX3– 4.5 GPH (17.0 l/h)
BX4 – 7.0 GPH (26.5 l/h)

Max Pressure:

150 psi (10.3 Bar)
100 psi (6.9 Bar)
50 psi (3.4 Bar)
30 psi (2.07 Bar)


The rugged construction and superior reliability of the Series B pumps make them an ideal product for a variety of applications in harsh environments, such as:

  • Water Treatment
  • Waste Water Treatment
  • Industrial Processing
  • Agriculture
  • Chemical Processing
  • Other – Contact your local representative



10633 County Road 26
Blair, NE 68008

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