These pumps are typically centrifugal or positive displacement pumps designed to circulate water through filters, ion exchange columns, and other treatment units to remove dissolved solids and produce demineralised water.

Components usually include:
o Pump body or casing (stainless steel or corrosion-resistant materials)
o Impeller or rotor for water circulation
o Inlet and outlet connections
o Control valves and flow meters
o Motor or drive mechanism (electric or pneumatic)
o Safety devices (pressure relief valves, sensors)

Benefits may include:
o Efficient circulation and distribution of water through demineralisation units
o Consistent flow rates and pressure control for optimal plant performance
o Compatibility with demineralisation processes involving ion exchange or reverse osmosis
o Durability and reliability in harsh industrial environments
o Compliance with water quality standards for various industrial applications

They are essential in industries such as power generation (boiler feed water), pharmaceutical manufacturing, electronics production, food and beverage processing, and laboratory applications where high-purity water is required for critical processes.

Selection factors include:
o Required flow rate and pressure specifications
o Type of demineralisation process (ion exchange, reverse osmosis)
o Material compatibility with demineralised water (corrosion-resistant materials)
o Energy efficiency and operational cost considerations
o Integration with existing plant infrastructure and control systems
o Maintenance and serviceability requirements

Maintenance tasks typically involve:
o Regular inspection and lubrication of pump bearings and seals
o Cleaning and flushing of pump internals and suction strainers
o Monitoring motor or drive performance
o Calibration of flow meters and pressure gauges
o Compliance with manufacturer-recommended maintenance schedules

Common issues may include pump cavitation, seal leaks, impeller wear, and motor failures. These can be resolved through proper installation, routine maintenance, replacement of worn parts, and adjusting operating parameters.

Yes, these pumps can be integrated with PLCs (Programmable Logic Controllers), SCADA (Supervisory Control and Data Acquisition) systems, or digital interfaces for automated operation, remote monitoring, and data logging. This enhances process control and efficiency in water treatment operations.

Operators should follow safety protocols for handling water treatment chemicals, ensure proper ventilation in treatment areas, wear appropriate PPE (Personal Protective Equipment), and have emergency shutdown procedures in place for equipment malfunctions or leaks.

They contribute by ensuring reliable water supply for critical processes, reducing downtime associated with water quality issues, optimizing energy consumption, and meeting regulatory requirements for water purity.

These pumps are available from specialized manufacturers, water treatment equipment suppliers, and distributors offering tailored solutions for demineralisation plants and industrial water purification systems.