Milton Roy Mechanical Diaphragm Metering Pumps
Milton Roy G-Series GM/GB Mechanical Diaphragm Metering Pump
Milton Roy GM/GB mechanical diaphragm metering pump rated to 1800 L/h per head at 12 bar discharge with 10:1 turndown and 3 m suction lift, offering PVC, PVDF, 316SS, high-viscosity and slurry liquid ends plus electric, motor and variable-frequency control for 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 | 1800 L/h |
| Maximum discharge pressure | 12 bar |
| Turndown ratio | 10:1, high steady-state accuracy |
| Suction lift | up to 3 m water column |
| Maximum inlet pressure | 2 bar |
| Maximum permitted fluid temperature | 40°C |
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, high-viscosity and slurry versions — 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
Motor controller: controls a three-phase motor in "run/stop" mode to adjust output flow.
- Power supply: 200-240V / 50/60Hz, single phase
- Control method: accepts 4-20 mA analog signal, external pulse signal, or manual adjustment
Variable-frequency controller: accepts an external control signal to adjust stroke rate.
- Power supply: 220V-50Hz single phase / 380V-50Hz three phase
- Input signal: 4-20 mA analog signal
Main Applications
Municipal, industrial water and wastewater, swimming pools and other water treatment processes.