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

MAXROY® Pump Series

Hydraulically Actuated Diaphragm Metering Pumps

  • Maximum Flow Rate: 2000 L/h 
  • Maximum Pressure: 28 kg/cm²g
  • Hydraulically Actuated Diaphragm 
  • Conforms to API 675

The MAXROY® Series hydraulically actuated diaphragm metering pumps are engineered for high capacity, high-pressure dosing applications that demand exceptional reliability, accuracy, and safety.

Designed in accordance with API 675 standards, the MAXROY Series delivers precise and repeatable dosing across a wide operating range. The hydraulically actuated PTFE diaphragm, elastomer bonded for extended life, ensures leak free operation—even under demanding pressure and flow conditions.

Available in Simplex, Duplex, and Triplex configurations, with a choice of metallic and plastic liquid ends, the MAXROY Series is ideally suited for critical dosing duties in industrial process plants, water treatment, and infrastructure applications.

Standard

  • Max flow rate:
    • Up to 2000 L/h (MAXROY B145)
    • Up to 760 L/h (MAXROY B105)
  • Max pressure:
    • Up to 28 kg/cm²g (MAXROY B105 – metallic liquid end)
    • Up to 10 kg/cm²g (Plastic liquid end)
  • Hydraulically actuated PTFE diaphragm, elastomer bonded for long life
  • Manual or automatic flow control
  • Flow rate adjustable while running: 0 to 100%
  • SteadyState accuracy: ±1% of rated capacity
  • Repeatability: ±3% of rated capacity
  • Turndown ratio: 10:1
  • Suction lift: Up to 1 m water column
  • Maximum suction pressure: 2 bar
  • Handles liquid viscosity up to 200 cPs
  • Maximum pumped liquid temperature:
    • +90 °C (metallic liquid end)
    • +45 °C (plastic liquid end)

Pump Configurations

  • Simplex
  • Duplex
  • Triplex

Options

  • Variable speed drive
  • Electronic Capacity Controller (ECC)
  • Automatic Capacity Controller (ACC)
  • Diaphragm Rupture Detection System (DRDS)
    • With or without pressure switch / transmitter

Standard Motor Data

  • Power supply: 415 V AC, 50 Hz, 3‑phase
  • Motor efficiency class: IE2
  • Degree of protection: IP55
  • Insulation class: Class F
  • Motor speed: 1440 RPM
  • Enclosure: TEFC (Totally Enclosed Fan Cooled)

Motor Options

  • Flameproof/explosion‑proof motors available on request

A complete range of accessories is available to support installation, protection, and system stability, including:

  • Pulsation dampeners
  • Safety valves
  • Backpressure valves
  • Diaphragm rupture detection accessories

Please consult us for selection based on process conditions and system layout.

Find a Sales Rep