Automatic Mixed Bed Deionisers

NDION Automatic Mixed Bed Deionisers are

designed to produce high purity treated water

required by the pharmaceutical and electronics

industries. They can be used as polishing units

after two bed deionisers or reverse osmosis or

directly, to obtain high purity water. Mixed bed

deionisers are single-column units, filled with

strongly acidic cation and strongly basic anion

exchange resins mixed together evenly. Dissolved

solids in the water are thus removed, producing

water of a very high quality - conforming to IP

specifications of purified water. The treated water,

however, is not free from bacteria and pyrogen.

Automation

The INDION Mixed Bed deionisers have

pneumatically actuated automatic plastic valves,

with the pre-programmed operation cycle

controlled by PLC. The regeneration of these units

can be initiated based on volume of water treated or laps of preset periods of time, making the

operation foolproof by reducing operator error substantially.

Advantages

- Easy to install and simple to operate.

- Complete with regeneration equipment, PLC based controls and pneumatically operated valves.

- As they are pre-assembled and tested before shipment, the mixed bed deioniser can be installed and commissioned within a day.

- Plastic valves and piping do not require maintenance and are corrosion resistant.

- Easy availability of spares and much lower maintenance cost.

- Higher flow rates can be met by installing two or more units in parallel. This ensures availability

of soft water even in the unlikely event of a unit breaking down.

- Produces deionised water of very high purity, conforming to IP specifications.ge.

Specifications

- One mild steel pressure vessels internally lined with rubber or FRP pressure vessels provided with internals of corrosion-resistant materials and initial charge of cation and anion exchange resins.

- One set of regeneration equipment, including hydraulic ejectors, acid and alkali tanks.

- One set of frontal pipework and valves.