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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.