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LMI is the leading manufacturer of Chemical Metering Pumps, Controllers, and Accessories. Their trademark yellow and black products are the standard for water treatment professionals around the world.

As a factory-certified repair facility for Liquid Metronics (LMI) products, we can also provide the accurate repair assessment necessary to keep your system operating at its best.

Metering Pumps

Metering Pumps
NEW !
KBL & KML Series Peristaltic Pumps |
Robust Cased-Drive
NEW !
NEW !
RTL Series | Peristaltic
Metering Pumps

  • 4.3” color LCD display

  • Patented offset rotor technology for safe and simple tube maintenance

  • Optical tube leak detection standard

  • Flow rates up to 32 GPH and 100 PSI

  • (4) digital inputs, (4) outputs, (2) analog 4-20mA inputs and outputs, and (2) 0-10VDC inputs

  • Standard MODBUS RTU connection and optional Profibus, MODBUS TCP, and Ethernet IP connections

  • Onboard real-time clock and calendar for timed events, maintenance tracking, cycle counting, and performance reporting

  • Equipped with a USB port for firmware upgrades and download of performance data and event logs

  • 4.33” color LCD display

  • Optical tube leak detection standard

  • Remote inputs available: 4-20mA, SCADA, Modbus

  • 4 configurable digital form-C relays

  • Onboard run timer for programmable predictive maintenance

  • Equipped with USB port for firmware upgrades and downloading of pump logs

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  • Best-in-class electronic components and enhanced control for full SCADA integration and advanced system process control features

  • Field upgradable firmware via USB-C drive interface for always current feature set and firmware upgrades

  • Rugged construction with NEMA 4X / IP 66 housing for the harshest environments and outdoor use

  • Compact footprint for efficient use of space in process applications or OEM configuration with removable mounting baseplate

  • Agency certifications - NSF 61, ETL, CE, and UKCA

  • 4.3” Color TFT display with Intuitive navigation, enabling easy configuration, full digital manual control of advanced pumps and visibility to running status, alarms, logs, and system configurations

TD Series Chemical Metering Pumps
LMI PD Series Pumps
PD Series Chemical Metering Pump

Manual Model:

  • Improved Drive Mechanism for more powerful stroke consistent steady state accuracy, and reliable efficiency

  • Universal Power Supply provides maximum flexibility

  • Simplified Capacity Setting with constant stroke range to maintain calibration across an adjustable range

  • Intelligent Drive Control electronics dynamically compensate for temperature and voltage conditions to provide consistent performance (patent pending)

  • Robust FASTPRIME™ Liquid Ends with over 10 years of proven performance

Enhanced Model:

  • Large Graphical Display allows easy navigation and configuration

  • External Control Inputs provide convenient remote access to automate your process

  • Calibration Assist provides an easy to use calibration process

  • System & User Totalizers acts as an odometer for your pump

  • STAYPRIME™ Degassing Technology automates the priming cycle

LMI XR Series
LMI AD Series
LMI XR Series

  • Expanded capacity to 53 GPH (201 LPH) to meet a wider range of specifications in the same footprint.

  • Refreshed user interface making programming inputs and out puts easier than ever.

  • Highly efficient mechanically actuated diaphragms
    Maximum evacuation on every stroke regardless of capacity setting

  • Universal technology platform able to adapt as technology evolves

  • Advanced easy-to-use operation interface backlit color display and enhanced settings enable maximum application customization

  • Rugged construction upgraded NEMA 4X/IP 65 housing and protective cover for the harshest environments

  • Remote connectivity control and feedback in real time

  • Universal power supply providing maximum flexibility

LMI EXCEL AD Series

•    Flow rates from 0-2.0

     GPH, Max Pressure 250

     PSI
•    LCD user interface
•    Theoretical flow rate

      display
•    External 4-20mA or

      pulse input control
•    4-20mA output and

      alarm relay outputs
•    NEMA 4X/IP-65

      enclosure

LMI B Series
LMI B Series

•    Flow rates from 0-7.0 

      GPH, Max Pressure

     150 PSI
•    LCD user interface or

     Dual Manual Control
•    External 4-20mA or

     pulse input control
•    Alarm output
•    NEMA 4X/IP-65

     enclosure

LMI C Series
LMI C Series
LMI E Series
LMI E Series
LMI G Series
LMI G Series
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mROY® Series Metering Pumps

•    Flow rates from

      0-25.0 GPH, Max

      Pressure 300 PSI
•    LCD user interface or

      Dual Manual Control
•    External 4-20mA or

      pulse input control
•    Alarm output
•    NEMA 4X/IP-65

      enclosure

•    Explosion Proof

•    Class I, Division I, Groups

      C and D; Class II, Division

      I, Groups E, F and G.

•    Flow rates from 0-20

     GPH, Max Pressure 300

     PSI
•    Dual Manual Control
•    External 4-20mA(with

     MP-100)or pulse input

     control
•    Alarm output
•    NEMA 4X/IP-65

      enclosure

•    Flow rates from 0-300 GPH,

      Max Pressure PSI 175
•    Steady State Accuracy -

     ± 1% of full capacity over the

     10 to 1 turn-down ratio
•    Mechanically Actuated

      Diaphragm liquid end

      eliminates flow restrictions

•    Explosion-proof motors 

      optional

•    Precision stroke adjustment

      can be operated while the

      pump is running or stopped

​

  • Flow rate from 0.20 gph (0.8 l/hr) up to 87 gph (330 l/h) in simplex configuration, or 174 gph (660 l/h) in duplex configuration.

  • Low and high pressure performance from 100 psi (5 bar) up to 3000 psi (207 bar)

  • Accuracy 1.0% over a 10:1 turndown ratio

  • Hydraulically-balanced diaphragm with 96,000 hours design life

  • Three-year warranty

Controllers

Controllers

LMI DC4000-03
LMI DC4000

​

  • Continuous or timed boiler sampling

  • Multiple inhibitor feed modes

  • 0 - 20,000 ìS range

  • Solenoid or motorized valve control

  • Open- / closed-loop system programming

  • 4 - 20 mA output [programmable]

  • Built-in equipment test circuits

  • Backlit LCD display

LMI DC4500-111A
LMI DC4500

  • Dual biocide control

  • Multiple inhibitor feed modes

  • 0 - 20,000 ìS range

  • Solenoid or motorized valve control

  • Open- / closed-loop system programming

  • 4 - 20 mA output [programmable]

  • Built-in equipment test circuits

  • Backlit LCD display

LMI DP5000-1
LMI DP5000

  • 0 - 14 pH scale

  • Dual-channel output fully programmable

  • On/off and/or proportional pump control

  • Alarm output with programmable set points

  • Drain valve control with programmable timers

  • 3-point proportional pump control

  • Probe diagnostics with 1- or 2-point calibration

  • Tactile keypad for ease of programming

  • Backlit LCD display

LMI DR5000-1
LMI DR5000

  • +2000 to -2000 mV Scale

  • Dual-channel output fully programmable

  • On/off and/or proportional pump control

  • Alarm output with programmable set points

  • Drain valve control with programmable timers

  • 3-point proportional pump control

  • Probe diagnostics with 1- or 2-point calibration

  • Tactile keypad for ease of programming

  • Backlit LCD display

Accessories

Accessories

Calibration Cylinders
Calibration Cylinders

  • High Reliability / Low Cost

  • Two Models: EZ-Clean and Vented

  • Three Sizes: 200 ml, 1000 ml, and 4000 ml

  • High Contrast Graduation Markings

  • Clear, Easy-View Tube

  • Sealed with Overflow Connection

  • Direct GPH Readout

4-Function Valve
4-Function Valve
Corporation Stop & Nozzle Assembly
Corporation Stop & Nozzle Assembly

  • Ergonomic design for easy control of functions.

  • Mounting connection that swivels 360º to the position best suited for the installation.

  • LMI’s tubing connection system for the most secure connection available with an electronic metering pump.

  • Hardware is protected from chemicals.

  • Brass components in contact with potable water are designed with a 0.10% maximum lead content

  • Injects Chemical into the center of the water flow

  • Allows easy nozzle withdrawal for service removal of injection check valve without shutdown of treated line.

  • Maximum pressure : 150 PSI

​

Preventive Maintenance & Spare Parts Kits
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Preventive Maintenance & Spare Parts Kits

Preventive Maintenance typically include:

  • Instruction Sheet

  • Replacement Liquifram™™

  • Cartridge Valves - suction and discharge

  • Injection Valve components

  • O-Rings

  • Shaft Seal

Agitators

  • Compatible to fit with LMI 35 and 50 gallon tanks

  • 115V and 230V models available

  • Impellers available in Neoprene R and epoxy coated stainless steel

  • Mounting hardware included

LMI 34643
Wall Mount Bracket

  • Durable polypropylene construction

  • Designed to fit LMI pumps

  • Easy to install

  • Includes mounting hardware

Digi-Pulse™ Flow Monitors
Digi-Pulse™ Flow Monitors

  • Corrosion resistant PVDF

  • Senses pulsating metering pump flow

  • Adjustable, in-line

  • Flow range: ml/stroke Max. LMI Pump Output 0.1 - 5.0 7.9 GPH (30.0 l/h)

  • Usable as Adjustable Flow Switch for non-pulsating flow

  • Economical

Chemical Storage Tanks
Chemical Storage Tanks

  • 10 gal, 35 gal and 50 gal tank sizes

  • Ultraviolet resistant, yellow polyethylene tank

  • Molded recesses for mounting LMI Series Pumps

  • Large fill hole at top allows easy replenishing of solution

  • Suitable for most corrosive and non-corrosive solutions

Pressure Relief Valves - Back Pressure Valves
Pressure Relief Valves - Back Pressure Valves
Remote Programmable Flowmeter - Pulsers
Remote Programmable Flowmeter - Pulsers

  • High Reliability / Low Cost

  • Robust, Machined Construction

  • Vulcanized PTFE-faced Diaphragm

  • Non-Chatter Design

  • Automatic flow proportioning with an LMI Remote Programmable Flowmeter-Pulser and LMI dosing pump

  • No timers, relays or control valves are required

  • Easy accessibility  - Mount the Remote Programmable Divider up to 100 feet away from the flow meter

  • Rugged Construction - Flowmeter body is constructed of cast bronze

  • The register is mounted directly to the Flowmeter and is hermetically sealed

  • Line sizes from 3/4" to 4"

  • Flow rates from .44 to 650 GPM

  • Line pressures to 200 psi (13.8 Bar)

  • Water temperatures from 32°F to 130°F (0°C to 55°C)

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