Pre-filters are essential components in reverse osmosis systems that remove large particles and sediments to protect downstream membranes.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Flow Rate | 2-20 GPM (7.6-75.7 L/min) depending on size | |
| Filtration Rating | 1-5 microns | |
| Operating Pressure | 20-100 psi (1.4-6.9 bar) | |
| Maximum Temperature | 40-52°C (104-125°F) | |
| Cartridge Dimensions | Standard 10" or 20" length, 2.5" or 4.5" diameter | |
| Dirt Holding Capacity | 500-5000 grams depending on media type |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A practical evidence checklist for RFQ preparation and supplier evaluation.
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Pre-filters typically require replacement every 3-6 months depending on feed water quality and system usage. Regular monitoring of pressure differential (ΔP) across the filter is recommended, with replacement when ΔP increases by 10-15 psi over clean filter conditions.
Standard sediment pre-filters do not remove chlorine. However, combination filters with activated carbon layers can remove chlorine, which is important for protecting polyamide RO membranes from oxidation damage.
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