Confirm the inlet conditions and system boundary
Request the documentation for the selected equipment, including feed limits, required utilities and operating conditions. State the quality and flow expected at the EDI inlet and outlet. The assessment should also account for monitoring, storage and distribution. Avoid assuming that an EDI stage can accept any incoming water without the appropriate preceding treatment.
EDI should be reviewed within a complete high-purity train
Electrodeionization is considered in a high-purity-water process using a specified feed and operating arrangement. Review the selected equipment’s inlet limits and utility requirements, together with the quality required at the outlet. Include upstream treatment and downstream storage or distribution in the system boundary. An EDI stage should not be assessed from final output flow alone.
| Requirement | What to compare | What to confirm |
|---|---|---|
| EDI feed | Review the equipment-specific inlet limits | Confirm the upstream treatment duty |
| EDI operation | Review flow and utility requirements | Use the chosen model documentation |
| Final use | Review outlet specification and distribution | Agree on monitoring and acceptance points |
A selection mistake to avoid
A mixed-bed resin and an EDI module are different treatment arrangements. Specify the actual polishing process and its feed conditions when reviewing a high-purity system.
What is the correct next step when an EDI module is not listed?
Send the application, feed analysis, required quality and any module identity to SWFI for a system or sourcing review. Availability and technical suitability need confirmation.
Planning the enquiry in Sabah
SWFI lists EDI among its water-treatment system categories. Provide the feed analysis, upstream configuration and high-purity-water requirement. Include the production schedule and the time available for maintenance. Agree on commissioning measurements and operator records so the equipment can be assessed using a clear baseline after installation.
Information to prepare
- Equipment-specific feed limits and utilities
- Upstream treatment and final quality target
- Monitoring and commissioning records
Can EDI selection begin with output flow alone?
Flow is essential, but feed quality, operating requirements and the final process specification also need to be established.
Discuss your requirement with SWFI
Share your site location and the information listed above. SWFI can review the requirement; equipment selection, supply and service scope are subject to technical suitability and confirmation.
Request a consultationNeed a specific component? →Technical background and SWFI scope: SWFI: systems, equipment and service information. Equipment-specific limits should be checked in the current manufacturer documentation.