Water Treatment Filtration
Pleated, depth and bag filter cartridges for municipal and industrial water treatment — raw water, process water, RO pre-filtration and final polishing. Factory-direct from PLEATPURE.
PLEATPURE filter cartridges for water treatment filtration — factory-direct manufacturing.
Why Filtration Matters Here
Pleated, depth and bag filter cartridges for municipal and industrial water treatment — raw water, process water, RO pre-filtration and final polishing. Factory-direct from PLEATPURE.
- RO pre-filtration: pleated 5 µm and 1 µm cartridges to protect membranes
- Depth cartridges for high-sediment raw water intake
- Activated carbon cartridges for taste, odor and chlorine removal
- Bag filters for large-flow intake and discharge applications
- Stainless steel housings rated for drinking-water duty
APPLICATIONS
Filter Applications in Water Treatment Filtration
| Application Point | Recommended Cartridge | Why |
|---|---|---|
| Raw water intake | String-wound or pleated depth cartridge, 20–50 µm | Removes sand, silt and suspended solids before any fine stage; protects pumps and downstream equipment. |
| RO membrane pre-filtration | Pleated 5 µm then 1 µm polypropylene | Membrane life is directly tied to pre-filter quality — 5+1 µm staging is the industry standard to keep SDI low. |
| Activated carbon polishing | GAC or carbon block, 5–10 µm | Removes chlorine, chloramine, taste and odor before distribution or process use. |
| Final polishing | Pleated 0.5–1 µm absolute | Meets product or discharge spec at the point of use. |
| High-flow intake/discharge | Bag filter, 25–200 µm | Lowest cost per gallon on large flows with coarse debris loads. |
SELECTION GUIDE
How to Choose Filters for Water Treatment Filtration
1. Know your raw water
Test turbidity, TSS, particle size and chlorine level. A 50 µm depth stage on heavy sediment protects every finer stage downstream.
2. Stage the filtration
Raw water stage → 5 µm pre-filter → carbon (if needed) → 1 µm final. Each stage extends the next one’s life 3–5×.
3. Match the micron to the duty
Coarse intake 20–50 µm, RO pre-filtration 5 µm + 1 µm, final polishing 0.5–1 µm. Never overspec fine where coarse protects.
4. Size for flow and pressure
Worked example: 200 GPM process line at 30 psi available head — four 40-inch pleated cartridges at 10 µm with 2–4 psi clean ΔP leaves comfortable margin.
5. Plan the change schedule
Track ΔP and change on trigger, not calendar. See the filter cartridge replacement schedule guide for typical intervals.
CHALLENGES & SOLUTIONS
Common Filtration Challenges
Membrane fouling and early RO failure
Add a 5 µm pre-filter before the 1 µm stage and monitor SDI monthly. A $12 cartridge change protects a $1,800 membrane set.
Seasonal turbidity spikes
Keep a coarse depth stage (50 µm) that absorbs the spike, and check water cartridges a month after spring runoff.
Chlorine breakthrough after carbon
Carbon has no pressure-drop warning — test with a chlorine strip weekly, or change on a fixed gallon schedule.
Recommended Products for Water Treatment Filtration
FAQ
Water Treatment Filtration — FAQ
What micron rating should my RO pre-filter be?
Standard staging is 5 µm pleated followed by 1 µm. Coarser plug the membrane faster; finer shortens pre-filter life without adding protection.
How often should water treatment cartridges be replaced?
Typically 3–6 months, but the real trigger is pressure drop: change when ΔP rises 10–15 psi above the clean reading, or on the calendar, whichever comes first.
Pleated or depth cartridge for raw water?
Heavy sediment: depth (string-wound) holds more dirt. Lower turbidity: pleated gives lower ΔP and longer run at 5–20 µm. Many plants run depth first, pleated second.
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