Chemical Pumps - Metering pumps

Milton Roy metering pumps help deliver accurate and reliable chemical dosing in some of the world's most demanding applications. Explore our portfolio to find solutions for water treatment, oil & gas, chemical processing, power generation, mining and other industrial processes. Our range of metering pumps will help you find solutions designed for your industry, operating conditions and process needs.

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Water & Wastewater Treatment

Coagulation, Flocculation & Clarification

Accurately dose coagulants, flocculants, and treatment chemicals to improve solids removal, water clarification, and overall treatment efficiency in municipal and industrial water systems.

Disinfection & Water Quality Control

Ensure safe, high-quality water through accurate chemical dosing for disinfection, de-chlorination, fluoridation, taste and odor control, iron and manganese removal, and other critical treatment processes designed to meet water quality and regulatory requirements.

pH Control, Desalination & Water Conditioning

Optimize water chemistry, protect treatment assets, and improve overall system performance with precise dosing solutions for pH control, desalination, membrane pretreatment, hardness control, corrosion inhibition, and water conditioning applications.

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Mining & Mineral Processing

Mineral Processing & Extraction

Improve process efficiency with precise chemical dosing for ore recovery, reagent addition, flotation, leaching and other critical mineral processing applications.

Battery Metals & Direct Lithium Extraction

Enable emerging energy transition projects with accurate chemical dosing for lithium recovery, battery metal processing, and direct lithium extraction applications.

Water Treatment & Tailings Management

Support water reuse, wastewater treatment, and tailings operations with reliable dosing solutions that help manage water quality and environmental requirements.

Learn more about Lithium Mining

Energy & Power Generation

Oil and Gas Production

Enable reliable upstream, midstream, and downstream operations with precise chemical injection for corrosion inhibition, hydrate prevention, scale control, and produced water treatment.

Power Generation & Utilities

Protect boilers, cooling systems and utility water processes with accurate dosing solutions that improve reliability and operational efficiency.

Refining & Petrochemical Processing

Support refining and petrochemical operations with precise dosing of catalysts, additives, and process chemicals across critical production processes.

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Chemical Industry

Circular Chemistry & Advanced Recycling

Support emerging circular economy applications with accurate dosing solutions for chemical recycling, feedstock recovery, pyrolysis processes and sustainable manufacturing technologies.

Reactor Charge, Catalyst Injection

Maintain safe and reliable operation with precise injection of catalysts, reactants, and specialty chemicals in high-pressure and process-critical chemical manufacturing applications.

Polymers & Plastics Manufacturing

Improve product quality and process consistency through precise dosing of catalysts, co-catalysts, additives and process chemicals used in polymer and plastics production.

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Why Engineers Choose Milton Roy

Precise Dosing

±1% steady-state accuracy across demanding process applications

API 675 Compliance

Designed for critical chemical injection and process industries

Leak-Free Technologies

PTFE and metallic diaphragm options with advanced protection systems

Extreme Pressure Capability

Solutions up to 1,035 bar (15,011 psi)

Long Service Life

Diaphragm technologies with service life exceeding 20,000 hours

Global Certifications

Diaphragm technologies with service life exceeding 20,000 hour

Water & Wastewater Treatment Solutions

Discover the water treatment processes, applications and technologies used every day in municipal & industrial facilities around the world.

Download the Water Treatment Brochure

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Metering Pumps