Milton Roy Mechanical Diaphragm Metering Pumps
Milton Roy G-Series GH Mechanical Diaphragm Metering Pump
Milton Roy GH mechanical diaphragm metering pump delivering up to 1700 L/h per head (5100 L/h in a three-head unit) at 3.5 bar discharge, with 10:1 turndown, ±1.5% steady-state accuracy and PVC/PVDF/316SS liquid ends for municipal and industrial water treatment dosing.
Selection support
- Share flow rate, pressure, medium, temperature and material requirements.
- We can support pump selection, dosing package configuration and spare parts matching.
- Detailed English datasheets and quotations are available for priority models on request.
Technical details
Key Performance Data
| Parameter | Value |
|---|---|
| Maximum flow rate per head | 1700 L/h |
| Maximum flow rate for three-head unit | 5100 L/h |
| Maximum discharge pressure | 3.5 bar |
| Maximum inlet pressure | 1 bar |
| Maximum permitted fluid temperature | 40°C |
| Suction lift | up to 2 m water column |
| Turndown ratio | 10:1 |
| Steady-state accuracy | ±1.5% |
Key Features
Liquid End
- Mechanically driven diaphragm with no diaphragm backing plate on the process side, allowing fluid to pass freely
- Multiple pump-head materials — PVC, PVDF, 316SS — suited to a wide range of fluids
- Self-cleaning check valve design
Drive End
- Variable eccentric adjustment mechanism ensures smooth, gradual changes in flow pulsation
- Reinforced structural design for demanding operating environments
- Wear-resistant ball bearings for more stable operation
- Oil-bath lubrication for long drive-component service life
- Flow can be adjusted while running or stopped; manual, electric or variable-frequency adjustment options available
Control Methods
Electric stroke controller: accepts an external control signal to adjust stroke length.
- Power supply: 220V-50Hz, single phase
- Input signal: 4-20 mA analog signal
- Output signal: 4-20 mA / 1-5 V analog signal, for recording, display and control systems
Main Applications
Municipal, industrial water and wastewater, swimming pools and other water treatment processes.