Dosing pumps and chemical dosing systems
Dosing pumps from Mai Fina: manual and automatic solenoid and motor-driven diaphragm dosing pumps with pulse, 4-20mA and flow-proportional control, for antiscalants, biocides, coagulants and pH adjusters, supplied with chemical tanks, injection valves and calibration columns.
Pump types
- Solenoid diaphragm dosing pumps for low to medium chemical flows.
- Motor-driven diaphragm metering pumps for higher flows and continuous duty.
- Manual stroke and frequency adjustment, or automatic control.
Control options
- Pulse input from a water meter.
- 4-20mA analog signal from a PLC or analyser.
- Flow-proportional dosing that follows the plant flow.
- Level switch or low-level alarm on the chemical tank.
Chemicals dosed
- Antiscalants for RO.
- Biocides.
- Coagulants and flocculants.
- pH adjusters (acid or caustic).
- Sodium metabisulphite dechlorination and chlorine disinfection.
Complete dosing packages
- Chemical-resistant polyethylene dosing tanks.
- Injection valves with non-return function.
- Calibration columns to verify the actual dose.
- Foot valves, suction lances and tubing.
- Installation, calibration and service under AMC.
Applications
RO and desalination plants, cooling towers, boilers, potable water disinfection, wastewater and swimming pools.
Specifications
| Parameter | Typical |
|---|---|
| Flow rate | Typical 0.5 to 500 L/h per pump |
| Pressure | Typical up to 10 to 20 bar |
| Pump types | Solenoid diaphragm, motor-driven diaphragm |
| Control | Manual, pulse, 4-20mA, flow-proportional |
| Accuracy | Typical ±2% steady-state repeatability |
| Wetted materials | PVDF, PP, PTFE, SS316 options |
| Power | 220-240V / 1ph / 50Hz or 380-415V / 3ph / 50Hz |
| Tanks | Typical 60 to 1,000 L PE tanks |
| Accessories | Injection valve, foot valve, calibration column, level switch |
Typical values. Final specifications depend on feed water analysis and site requirements.
Talk to us
Send your water analysis and duty to info@maifina.com or WhatsApp / call +971 55 521 7294.