Spiral membrane elements, filter cartridges, bag filters, housings and the cleaning chemistry that determines element life.
A photograph of the nameplate is enough. Part numbers are not published on this site. The nameplate carries the model, the build and the serial, and those three identify every consumable and wear part on the machine.
Where the nameplate is unreadable, a photograph of the equipment and the plant tag number are normally sufficient. The quotation states the genuine part, its origin and its lead time.
A membrane does not wear mechanically. It fouls, is cleaned, and each cleaning cycle recovers slightly less flux than the last. The element is retired when flux recovery has fallen far enough that the line can no longer hold its rate.
| Item | Figure |
|---|---|
| Spiral polymeric UF / RO, dairy | 1–3 years typical; 4–5 with tight discipline |
| With an enzymatic and chelating regime | 4–5 years; approx. 25% lower TCO |
| Dairy UF, chemical cleaning frequency | Every 18–24 hours |
| Ceramic microfiltration | 8–10 years, at 5–10× the capital cost |
| Acid mixed with a chlorine-based cleaner | Releases chlorine gas. Hazardous to personnel; destroys the element. |
Sources: membrane and cleaning-chemistry manufacturer documentation; published dairy process literature.
The same element on the same duty, cleaned two ways, over forty-eight months. Flux recovery after each clean determines the retirement point.