High-pressure pumps for RO and seawater desalination
High-pressure pumps from Mai Fina: multistage centrifugal and plunger / piston pumps used as RO feed and booster pumps for brackish water and seawater, in stainless steel, with duplex and super-duplex options for SWRO, VFD control and energy recovery integration.
Pump types
- Multistage centrifugal pumps, vertical or horizontal, for brackish water RO and larger seawater trains.
- Plunger / piston positive displacement pumps for small and medium seawater RO.
- Booster pumps for feed pressure and interstage boosting.
Materials
Stainless steel for brackish water RO; duplex and super-duplex stainless steel for seawater RO, where chloride corrosion resistance is essential.
Key features and benefits
- VFD (variable frequency drive) soft start and pressure control to save energy and protect membranes.
- Integration with energy recovery devices on seawater RO to recover energy from the brine stream.
- Low and high pressure switches and pressure gauges for protection.
- Pump selection from the RO projection: flow and pressure duty.
- Repair, seal replacement and replacement pumps under AMC.
Applications
Brackish water RO, seawater desalination, camp and hotel RO plants, industrial process water and boiler feed.
Design data we need
RO flow and pressure duty, feed water type (brackish or seawater), available power supply and the existing pump details for replacement.
Specifications
| Parameter | Typical |
|---|---|
| Flow rate | Typical 1 to 500 m³/h |
| Pressure | Typical 10 to 25 bar (BWRO), 55 to 83 bar (SWRO) |
| Pump types | Multistage centrifugal, plunger / piston |
| Materials | SS304 / SS316 (brackish), duplex / super-duplex (seawater) |
| Power | 380-415V / 3ph / 50Hz |
| Drive | Direct-on-line, soft starter or VFD |
| Energy recovery | Compatible with energy recovery devices on SWRO |
| Protection | Low / high pressure switches, pressure gauges, check valve |
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.