Desalination is a procedure for producing drinking water and service water from seawater and with desalination pumps, you are ensured a perfect desalination process.

Many desalination pumps manufacturers are well-known all over the world for their low maintenance costs, long lifetime and low NPSH values. Desalination pumps are an obvious choice for water purification systems or reverse osmosis (RO) treatment.

Reverse osmosis is the easiest and most common method of desalination process by which salt is removed from brackish and seawater through filtration. Saltwater is pumped through desalination pumps at high pressures through semipermeable membranes that impede almost completely the passage of salts, thus freshwater is obtained.

Flowmore Pumps supplies centrifugal pumps for seawater desalination applications, especially for RO (Reverse Osmosis) plants. Moreover, the key pumps for the inlet and high-pressure pass, they also offer pumps for water transport and flushing pumps for energy recovery and backwashing. Depending on the level of temperature and salinity, desalination pumps are available starting from grey cast iron to duplex and super duplex steel. Their centrifugal pumps fulfil the highest customer expectations in terms of the life cycle, efficiency, economic efficiency and maintenance friendliness.

Due to the repeated contact with salt or seawater, the choice of the right material for desalination pumps in desalination plants is crucial. Due to the aggressiveness of saltwater, companies make pumps which are made of a special, resistant material, namely duplex steel. Striking characteristics of duplex steel are their high resistance to surface corrosion, stress corrosion cracking and local corrosion. The structure of this steel is particularly resistant to corrosion energy absorption, fatigue, abrasion and erosion, low thermal expansion and has good weldability. The processing of duplex steel needs extensive practice and know-how. Flowmore Pumps has long-term experience in the application of this special material.

Pumps used for desalination require different design considerations and more stringent material selections than normal applications. The liquid being pumped can be brackish water, seawater, or concentrated brine. The longevity of the pumps in service depends on the materials used, design as well as operating conditions present. There are 4 different pumps for desalination which includes reverse osmosis horizontal multi-stage charge (injection) pumps, vertical wet pit intake pumps, horizontal pipeline transfer pumps and vertical can brine recycle pumps.

Desalination processes for treating brackish water, seawater, and wastewater are increasingly used to provide communities with essential water resources. Pumps are used to treat seawater by thermal and reverse osmosis processes, electrodialysis, brackish water treatment by reverse osmosis, and wastewater treatment by reverse osmosis. Feedwater quality, operational issues, concentrate disposal, pretreatment requirements, and costs are considered, besides emerging improvements for increasing water recovery.

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