Milton Roy Primeroyal H (PH) Series Pumps
Critical-Process, High-Pressure Injection | API 675 Certified | Modular & Compact Design
Product Overview
The Milton Roy Primeroyal H (PH) Series is a hydraulically actuated metering pump designed for critical-process applications demanding high pressure and precise dosing. With flows up to 250 gph / 948 lph and pressures reaching 7,500 psi / 515 bar, these pumps provide exceptional accuracy (±1%) and repeatability (±3%) in compliance with API 675.
Compact, modular, and versatile, the PH Series ensures reliable performance even in extreme conditions such as offshore, saline, desert, or low-temperature environments. Its variable eccentric drive allows adjustment of stroke length for optimal dosing with multiple diaphragm liquid end options including low-flow, PTFE, and metallic diaphragm designs.
Technical Specifications
| Liquid End Material | 316L Stainless Steel / 17-4 PH |
| Maximum Pressure | 7,500 psi / 515 bar (diaphragm liquid end) |
| Maximum Flow Rate | 250 gph / 948 lph (diaphragm liquid end) |
| Flow Variation Control | Manual / Remote |
| Certifications | API 675, EC, ATEX, IECEX |
| Multiplexing | Available |
Key Features
- Compact design for critical-process applications
- High-pressure capability up to 7,500 psi / 515 bar
- Precision dosing with ±1% accuracy and ±3% repeatability
- Variable eccentric drive for adjustable stroke length
- Multiple hydraulically actuated diaphragm liquid end designs
- Modular construction for flexible installation and service
- Reliable operation in extreme environmental conditions
Applications
The Milton Roy Primeroyal H (PH) Series pumps are widely used for precise chemical injection in the following industries:
- Chemical / Petrochemical: additive injection, co-catalysts, sulphuric acid dosing
- Food & Beverage: enzymes in starch production, caustic soda for water neutralization
- Oil & Gas: biocide, corrosion & scale inhibitors, H2S scavengers
- Refinery / Downstream: paraffin inhibitors, product separation and treatment
- Water & Wastewater Treatment: municipal disinfection, fluoridation, coagulation/flocculation, pH control
- Industrial Water Treatment: boiler and hydraulic system protection to prevent scale and corrosion
Technical Resources
- • Global Water Brochure – EN
- • Milton Roy Primeroyal H Series Datasheet
- • Instruction & Operation Manual
- • Electronic Capacity Control Manual
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