Start with daily volume.
List the points that use treated water and estimate their combined daily consumption. Separate routine use from occasional peak demand. Include the time available for producing and storing water.
Use production hours, not opening hours.
Divide your daily treated-water requirement by the number of hours the system can actually produce water. Allow the engineer to assess downtime, feed-water variation and storage before selecting a model.
This is the average production rate needed in this example, not a final equipment recommendation. Peak use, operating conditions and reserve capacity still need review.
Account for peak demand and storage.
A tank can supply short periods of high demand while the RO system replenishes it. Confirm the required usable storage volume, available space and distribution arrangement together.
Check the water and the installation.
Share a water analysis, inlet pressure, intended use, available electrical supply and a site layout. These inputs determine whether a catalogue configuration fits the application.
Compare the exact configuration.
Check cabinet dimensions, tank arrangement, installation responsibilities and consumable supply. A shared series name does not mean every model has identical dimensions or components.
Prepared by JINFAN WATER for preliminary procurement discussions. Final selection requires a project-specific technical review.