1–5 micron cartridge filters — the final safeguard immediately upstream of the high-pressure pumps and reverse-osmosis membranes.
SWRO Intake & Pre-Treatment for Desalination
Cartridge filters are the last barrier before the high-pressure pumps and RO membranes. Rated typically 1–5 micron, they catch any particulate breakthrough from upstream media or UF pre-treatment, protecting the most expensive components in the plant. They are a guard, not a workhorse — rising differential pressure signals upstream problems.
Final particulate barrier before RO
Pleated for surface area and life; melt-blown depth for solids.
Absolute-rated elements set the final particulate barrier.
316L / duplex, code-stamped vessels holding many elements.
Rising ΔP triggers change-out and flags upstream upsets.
Disposable elements replaced on ΔP or time.
Stops grit reaching pumps and membranes.
Typical engineering envelope
| Parameter | Typical | Notes |
|---|---|---|
| Micron rating | 1–5 µm absolute | Final guard |
| Flow per element | 0.2–0.3 m³/h per 10″ | Element dependent |
| Clean ΔP | ~0.2 bar | New elements |
| Change-out ΔP | 1.0–1.5 bar | Or on schedule |
| Housing | 316L / duplex | Code-stamped |
| Position | Before HP pumps | Immediately upstream of RO |
Continue across the SWRO intake & pre-treatment series
A companion stage of the SWRO pre-treatment train.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreThe intake-systems hub these stages belong to.
Read MoreProtecting SWRO membranes from fouling and oxidants.
Read MoreA companion stage of the SWRO pre-treatment train.
Read MoreComplete SWRO desalination plant solutions.
Read MoreMedia and self-cleaning filtration across our range.
Read MoreOur desalination engineers design the complete intake and pre-treatment train — cartridge filtration and every stage — to deliver a low-SDI, membrane-safe feed at minimum lifecycle cost.
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