Products
Metering Pumps
Process Pumps
Mixers
Systems & Skids
Electronics and Metering
Valves and Accessories
Industries & Applications
Water Treatment
Energy
Pyrolysis Plastics Recycling
Lithium Mining
Essential Pil Extraction
Palm Oil Production
Technology
Water Treatment
Energy
General Industry
Metering Pump Technology
Metering Pump Principles
Petrochemical Industry
Aftermarket & Support
CARE Maintenance Plans
Spare Parts Inventory
Resources
White Paper
Case Studies
Webinars on Demand
Digital Support Files
Certifications
Milton Roy YouTube Channel
Sales Terms & Conditions
About Us
News
Knowledge Hub
Careers
Sign Up for Newsletter
Back to the product list

Accurate Flow Control with mRoy MRB Series | Milton Roy

The mROY Model B metering pump ensures precise, controlled chemical dosing with a hydraulically-actuated PTFE diaphragm. Its compact, durable design meets global standards and delivers reliable, year-round performance. With minimal maintenance, it provides decades of accuracy for a wide range of fluid applications.

  • Material (liquid end): 316SS / Alloy 20 / Alloy C22 / Titanium / PVC / PVDF
  • Pressure max: 1,500 psi / 103.4 bar (metallic liquid end); 150.3 psi / 10 bar (plastic liquid end)
  • Flow max: 85 gph / 321.7 lph (metallic or plastic liquid end)
  • Multiplex: Duplex only
  • Flow variation control: Manual / Remote
  • Certifications: API 675, ATEX

The mRoy Series model B features a hydraulically balanced PTFE diaphragm designed for a 96,000-hour operating life, eliminating the need for seals and plunger packing maintenance. Its liquid end bleed system simplifies commissioning, while the worm and pinion drive, operating in an oil bath, ensures smooth mechanical motion and extends gear and bearing life. A dust-tight cast iron housing provides durability for harsh environments. The micrometer capacity adjustment allows precise flow control, and an internal hydraulic pressure relief valve safeguards against overpressure. High-performance, adjustable cartridge-type check valves ensure reliable sealing on every stroke. Designed to meet API 675 standards, the MRB series pump delivers exceptional performance and longevity.

The mRoy MRB series part numbers start with prefix codes MRB***. Please see datasheet for full part number configuration options.

Download manual for the catalog of mRoy MRB series parts.

Milton Roy, mROY Chemical Metering Pump

Injection of chemicals such as coagulants, biocides, disinfectants, polymers, softening agents, acids and bases for pH control, scale and corrosion inhibitors, oxygen scavengers, process additives, and many more for the following areas of application:

  • Municipal water & wastewater treatment
  • Industrial water & wastewater treatment
  • Chemical and petrochemical processing
  • Cooling towers and boilers
  • Oil and gas production
  • Pharmaceuticals production
  • Power generation
  • Agriculture
Find a Sales Rep