LMI

Introducing the LMI PD Series Chemical Metering Pumps

Designed specifically for industrial water treatment applications, the newly redesigned PD Series chemical metering pump adds advanced technology to one of LMI’s most popular pumps. Available in two models, Manual and Enhanced, the PD Series pump fits seamlessly into your water treatment process while adding convenience and value to your application.

Experience the next generation of precision and performance:

• Improved Drive Mechanism for more powerful stroke, consistent steady state accuracy, and reliable efficiency
• Simplified Capacity Setting with constant stroke range to maintain calibration across an adjustable range.
• Advanced Electronics dynamically compensate for temperature and voltage conditions to provide consistent performance (patent pending).
• Robust Liquid Ends with over 10 years of proven performance.

In addition to the features and benefits of the Manual model, the Enhanced model boasts external control and a large graphical display to provide intuitive access to advanced features such as calibration assist, system and user totalizers, the new STAYPRIME™ degassing technology, and more.

Enhanced Functionality, LMI PD7 Pumps

• 2.4” Color LCD allows easy navigation and configuration with graphical display.
• External Control Inputs provide convenient remote access to automate your process.
• Calibration Assist provides an easy to use calibration process.
• System & User Totalizers act as an odometer for your pump by logging pump strokes, estimated volume and power cycles.
• StayPrime™ Degassing Technology automates the priming cycle after a period of idle pump time to ensure prime.

LMI ROYTRONIC EXCEL Series AD pumps achieve a new level of innovation in solenoid-driven metering pump technology. Offering a robust design, micropressor control options and improved electro-magnetics to meet all ἀow/pressure ratings. ROYTRONIC EXCEL Series AD chemical metering pumps will provide industry solutions for more versatile chemical injection with greater turn-down capability.

The LMI Milton Roy Series B electromagnetic solenoid driven diaphragm pumps have manually adjustable stroke length control providing accurate pump output adjustment. The time tested electronics are totally encapsulated for protection against moisture and corrosive conditions, owing to the reliable, repeatable performances. NEMA 4X / IP65 enclosures ensure protection against corrosive environments. The priming valves have Fluorofilm® diaphragms and ramp style knobs for hands free priming. We offer a wide variety including B1 (manual stroke length and stroke frequency control), B7 (manual stroke length and selectable manual stroke frequency control or external pacing control), B9 (LCD display, manual stroke length and selectable keypad stroke frequency control or external pacing control with pulse divide / multiply option from 1-999 or 4-20mA control)

The LMI Milton Roy Series C electromagnetic solenoid driven diaphragm pumps have manually adjustable stroke length control providing accurate pump output adjustment. The time tested electronics are totally encapsulated for protection against moisture and corrosive conditions, owing to the reliable, repeatable performances. NEMA 4X / IP65 enclosures ensure protection against corrosive environments. The priming valves have Fluorofilm® diaphragms and ramp style knobs for hands free priming. We offer a variety of models: C1 (manual stroke length and stroke frequency control), C7 (manual stroke length and selectable manual stroke frequency control or external pacing control), C9 (offer a LCD display, manual stroke length and selectable keypad stroke frequency control or external pacing control with pulse divide / multiply option from 1-999 or 4-20mA control)

The LMI Milton Roy Series E7 electromagnetic solenoid driven diaphragm pumps have manually adjustable stroke length control providing accurate pump output adjustment. The time tested electronics are totally encapsulated for protection against moisture and corrosive conditions, owing to the reliable, repeatable performances. NEMA 4X / IP65 enclosures ensure protection against corrosive environments. The priming valves have Fluorofilm® diaphragms and ramp style knobs for hands free priming. These pumps are designed to meet or exceed all standards for Class I, Division I and 2, Groups C and D; Class II, Groups E, F, and G.

Advanced Control, TD Chemical Metering - Accurate, Efficient, Reliable

Introducing the TD Series from LMI Pumps, the most versatile chemical metering pump on the market. This new generation of pumps offers the most advanced control options, from manual speed adjustment to full SCADA integration and remote control. Additionally, units are available with MODBUS, PROFIBUS, and Bluetooth connectivity.

All TD Series Liquid Ends are newly designed by LMI, featuring improved materials, double ball check valves, and over-molded diaphragms that are proven to operate continuously for over 40 million strokes. These Liquid Ends also incorporate FASTPRIME™ technology, ensuring quick and easy commissioning and priming.

The TD Series is available in four models: Manual, Advanced, COMMs Control Modbus TCP/RTU, and COMMs Control Profibus. Each model integrates seamlessly into your process control application. The Manual model provides simple speed control while maintaining the accuracy, precision, and durability of the enhanced drive system.

TD serues Advanced models offer a range of internal and external controls, along with a large TFT display for intuitive access to advanced features such as calibration assist, multiple digital IOs, speed input and output controls, batch and dose mode, slow mode, system and user totalizers, Bluetooth, and more. The COMMs model includes all the features of the Advanced model, with the addition of industrial protocol communications.

TD Pump Performace Specifications

• Output Range: .003 – 16.0 GPH(.01 – 60.6 LPH), 25-250 PSI  
• Pressure Range: (1.7-17.2 BAR)
• Max Stroke: 187 SPM
• Installation: Indoor/Outdoor
• Supply Voltage: 100-230V / 50-60 Hz
• Steady State Accuracy: +/- 1.5%
• Repeatable Accuracy: +/- 3%
• Turndown: 1,000:1

The Excel XR chemical metering pump series from LMI are factory engineered to meet most of today’s demanding pumping application standards for accuracy, reliability & process control flexibility.

XR LMI Pumps are designed from the ground up based on critical feedback received from many checmical metering pump customers as well as water treatment plants maintenance operators and experienced industry experts.

LMI's Excel XR metering pumps feature enhanced unparralelled performance & process control capabilities. Built on principles from universal technology platforms with the flexibility to adapt as technology evolves and grows.

If you have a Chemical Metering pump application, the Excel XR metering pump from LMI is ready to outsmart and outperform even the toughest demanding applications.

EXCEL XR Metering Pump with New Features & Benefits (Video)

XR Metering Pump with STAYPRIME Degassing Technology (Video)

The LMI Milton Roy ROYTRONIC Series A metering pump has a robust design, control options and improved electro-magnetics to meet all flow / pressure ratings. The pumps are available for applications up to 250 psi with capacities between .001 and 2.0 GPH. Single to dual manual control options with pulse input to 4-20 mA input are available. The line includes ferrule designed fittings that set a new standard for secure, leak-proof tubing connections. Covered by a 3-Year warranty.

The LMI Milton Roy Series G Mechanically Actuated diaphragm metering pumps with adjustable outputs from 0.0 to 300 GPH and injection pressure capabilities available to 175 PSI.

LMI Milton Roy Series J5 are a electromagnetic solenoid driven diaphragm 12 Volt DC powered metering, chemical, Injection Dosing pumps for precise and accurate metering control. These include adjustable outputs from 0.006 to 2.0 GPH and injection pressure capabilities available to 140 PSI. All pumps include a total of 16 ft (4.8 m) of polyethylene tubing complete with compression connections, a foot valve with integral one piece strainer for the suction line, and an injection check/back pressure valve with 1/2" NPT male connection for the injection point.

The LMI Milton Roy Series P electromagnetic solenoid driven diaphragm pumps have manually adjustable stroke length control providing accurate pump output adjustment. The time tested electronics are totally encapsulated for protection against moisture and corrosive conditions, owing to the reliable, repeatable performances. NEMA 4X / IP65 enclosures ensure protection against corrosive environments. The priming valves have Fluorofilm® diaphragms and ramp style knobs for hands free priming. PumpCatalog.com offers several models: P0 (manual stroke length and fixed stroke frequency), P1 (manual stroke length and stroke frequency control), P7 (manual stroke length and selectable manual stroke frequency control or external pacing control)

The LMI Milton Roy Pump Repair Parts and Kits contain the parts which are the most replaced. The LMI Milton Roy repair and preventative maintenance kits contain everything needed to maintain optimum performance on LMI's LiquiPro Series of electronic metering pumps.

The LMI Milton Roy liquid end Assembly are for easy maintenance of an LMI metering pump's liquid end parts. Each Liquid End Kit contains the complete liquid handling assembly for your pump - every component that comes into contact with the solution is included.

The LMI Milton Roy AA Series Chemical Feed Pumps key features include rigid stroke bracket assembly, advanced control options for simplified system integration, 5 level power control option to reduce system shock and extend the life of the pump. Advanced control options include pulse multiply/divide, 4-20 mA, remote on/off. External pacing for flow proportional applications. Adjustable stroke frequency and the flexibility of up to 1,000:1 turndown ratio. NEMA 4X/IP65 enclosure provides protection against corrosive environments.

LMI Liquitech Controllers are the first choice by water-treatment professionals for simple chemical addition to control conductivity, pH and ORP. The superior design and rugged construction of our controllers add the value and reliability you expect from an industry leader.

LMI Pump Drives for Electronic Chemical Metering Pumps

KBL Peristaltic Metering Pumps

LMI's KBL Peristaltic Pumps are self priming to deliver the smoothest chemical feed possible. Manufactured by Ingersol Rand, each model contains a 4.33" LCD color display with standard tube leak detection. These pumps have a huge benefit where you will never have to worry about running the pump dry. These are the perfect peristaltic pump options for industrial water treatment pumping applications.

Pump Features:

• Tool-free tube change
• Improved safety - No rotating parts during tube change
• Easy-to-Use interface with one-button switching between local and remote mode
• USBC interface allows for downloading of operating history and installation of new software versions
• Expandable platform can be field-upgraded to add features and communication options
• Multiple tubing options to cover a wide range of chemicals and applications
• Assembled in USA
• Standard 2-year warranty

Operating Ranges:

• Maximum flow up to 600 lph (158.5 gph "Gallons Per Hour") at full speed
• Up to 7.6 bar (110 psi "Pounds Per Square Inch")
• 200:1 Turndown Ratio

Pumping Applications:

• Industrial Water Treatment
• Ink, Dye, and Pigment
• Sulfuric Acid
• Plating Solutions
• Fungicide/Biocide
• Anti-scalant
• Seed Coating
• Reagents

KML Peristaltic Metering Pumps

LMI's KML Peristaltic Pumps are geared towards municipal markets made by Ingersol Rand. KML Peristaltic pumps are self priming to deliver the smoothest chemical feed possible. Pumps will never air bind or vapor lock! Each model contains a 4.33" LCD color display with standard tube leak detection. These pumps have a huge benefit where you will never have to worry about running the pump dry. These are the perfect peristaltic pump options for industrial water treatment pumping applications.

Pump Features:

• Tool free tube change
• Improved maintenance and safety - No rotating parts during tube change
• Simple Easy-to-Use interface and one-button switching between local and remote mode
• USBC interface allows for downloading of operating history and installation of new software versions
• Expandable platform can be field-upgraded to add features and communication options
• Numerous tubing options to cover a wide range of chemicals and applications
• Assembled in the United States of America - USA
• Standard 5-year warranty
• NSF 61 Certified

Operating Ranges:

• Maximum flow up to 600 lph (158.5 gph) at full speed
• Up to 7.6 bar (110 psi)
• 10,000:1 Turndown Ratio

Pumping Applications:

• Sodium Hypochlorite
• Polymers
• Caustic/Sodium Hydroxide
• Polyaluminum Chloride
• Fluoride
• pH and Odor Control
• Ferric Chloride
• Sampling Pumps

RTL Series Peristaltic Pump — Engineered for Performance, Reliability, and Sustainability

The NEW RTL Series peristaltic pump is purpose‑built to deliver exceptional metering performance while reducing maintenance costs and minimizing environmental impact.

Simple, Safe, and Fast Maintenance

• Completely sealed, quick‑change tube elements streamline service and reduce downtime

• Pump head design enables safe chemical release, protecting both personnel and the environment

• Low‑cost consumable parts significantly reduce long‑term maintenance expenses compared to cartridge‑based systems

Key Features

• 4.3” full‑color LCD display for intuitive operation

• Patented offset rotor technology for safer, easier tube maintenance

• Standard optical leak detection for enhanced safety

• Flow rates up to 32 GPH and pressures up to 100 PSI

• Comprehensive I/O package:

  • (4) digital inputs

  • (4) digital outputs

  • (2) analog 4–20 mA inputs and outputs

  • (2) 0–10 VDC inputs

• Standard MODBUS RTU with optional Profibus, MODBUS TCP, and Ethernet IP

• Onboard real‑time clock and calendar for scheduling, maintenance tracking, cycle counting, and performance reporting

• USB port for firmware updates and downloading performance data or event logs

Operational Advantages

• Consistent displacement per rotation ensures excellent metering accuracy

• Suction lift up to 30 ft with zero internal slip

• Self‑priming design delivers smooth, reliable chemical feed

• Only the tubing contacts the fluid — no valves, no check balls, no moving wetted parts

• No damage from dry running

• Will not vapor lock or air bind

Model Specifications

If you are looking for replacement drives for your Excel Series Chemical Metering Pump, you have come to the right place. We have over 40 XRD Drives available for online purchasing right now.

Browse over two dozen Excel Series Chemical Metering Pump Liquid Ends today!

There are a wide range of options and accessories available to customize the Excel XR metering pump to fit your speficif application. Mechanically actuated diaphragm liquid end materials include, Polypropylene, PVDF & 316 Stainless steel. Accessories include backpressure valves, saftey valves, pulsation dampeners, calibration columns and degassing valves and sytems.

If you need repair parts for your Excel XR series we have you covered. There are specific items exclusive the the XR series and some parts are universal among all LMI series.