UF 4040 Ultrafiltration Membrane Module – Complete Bacteria Removal Unit for Commercial RO Plants
The UF 4040 Ultrafiltration Membrane Module is a complete, ready-to-install bacteria-removal unit — not just a bare membrane cartridge. The hollow-fiber UF membrane sits inside its own integrated white PVC housing, with union-style fittings on both ends for direct connection into an RO plant's existing plumbing. There's no separate pressure vessel or housing to source and fit — this design is specifically built to eliminate that extra step and cost, which is common in this class of self-housed UF module.
How Ultrafiltration Actually Works
Ultrafiltration is a pressure-driven, size-exclusion filtration process. Water is forced through a hollow-fiber membrane whose microscopic pores — typically in the 0.02 to 0.05 micron range — are small enough to physically block bacteria, viruses, and colloids, while allowing water and dissolved minerals to pass through. This is an important distinction from a UV lamp or ozone generator: UF removes bacteria by trapping them, it doesn't kill them. It's a physical barrier, not a disinfection method. Many commercial systems pair UF with a UV sterilizer or ozone generator downstream for a genuine multi-barrier approach — physical removal plus active disinfection.
UF vs. RO — Not the Same Job
It's worth being clear about what this module does and doesn't do:
- UF removes: Bacteria, viruses (to a large extent), colloids, suspended solids, and sediment.
- UF does NOT remove: Dissolved salts, TDS, or most dissolved minerals — that's the job of an RO membrane.
- Operating pressure: UF runs at much lower pressure than RO, with far less rejected/waste water.
In practice, UF is most often used as a pretreatment stage ahead of an RO membrane — protecting the RO membrane from microbial fouling and extending its working life — or as a standalone bacteria-removal stage where TDS reduction isn't the concern, such as source water that's otherwise low in dissolved solids but microbially contaminated.
Key Features of UF 4040 Ultrafiltration Membrane Module
- Complete Self-Housed Module — Membrane and housing in one unit; no separate pressure vessel needed.
- Ready-to-Connect Fittings — Union-style connectors on both ends for direct plumbing into an RO plant.
- Hollow-Fiber Membrane Technology — Fine pore structure (0.02–0.05 micron) for reliable bacteria, virus, and colloid rejection.
- Low-Pressure, High-Recovery Operation — Unlike RO, UF doesn't require high pressure or produce significant reject water.
- Pairs With UV/Ozone for Full Disinfection — Combine with an Axtron UV sterilizer or ozone generator for physical removal plus active disinfection.
- 4" x 40" Standard Sizing — Compact footprint for the filtration capacity it provides.
Who This Is For
- Commercial RO Plants — As a pretreatment stage protecting downstream RO membranes from microbial fouling.
- Bottled & Refill Water Businesses — Where raw source water carries heavy bacterial contamination and needs a strong physical barrier before further treatment.
- Municipal & Institutional Water Systems — Schools, hospitals, and facilities needing reliable microorganism removal at commercial scale.
Installation of UF 4040 Ultrafiltration Membrane Module
Because the membrane and housing are already assembled as one unit, installation is a matter of connecting the two end fittings directly into your existing RO plant plumbing — no separate housing purchase, sizing, or fitting required. Confirm your plant's line size matches the module's end connections before ordering.
Why Axtron?
Axtron Pakistan has supplied water filtration and RO plant components since 2005, with offices in Lahore, Multan, and Bahawalpur and a network of 500+ retailers nationwide. This UF 4040 module extends our membrane lineup beyond RO into ultrafiltration — a genuinely useful, ready-to-fit option for businesses dealing with microbially heavy source water, whether as RO pretreatment or a standalone bacteria-removal stage.
Conclusion
If your commercial RO plant or bottled water business is dealing with heavily contaminated raw water, the UF 4040 Ultrafiltration Membrane Module gives you a complete, ready-to-install physical barrier against bacteria and sediment — no separate housing to source, just connect and go. Pair it with UV or ozone for complete disinfection coverage.
8. Full Technical Specification Chart
| Parameter | Detail |
|---|---|
| Type | Ultrafiltration (UF) hollow-fiber membrane module, complete with integrated PVC housing |
| Size | 4" diameter x 40" length (4040 standard) |
| Filtration Method | Physical size-exclusion (not disinfection) |
| Pore Size | 0.02–0.05 micron |
| Removes | Bacteria, viruses (largely), colloids, suspended solids, sediment |
| Does Not Remove | Dissolved salts / TDS (requires RO for that) |
| Housing | Integrated — no separate pressure vessel required |
| Connections | Union-style fittings on both ends, ready to connect |
| Made in | China |
| Best Used | As RO pretreatment, or standalone bacteria/sediment removal |
| Price | ₨25,000 |
9. Features → Benefits Chart
| Feature | Benefit to the Customer |
|---|---|
| Integrated housing | No separate pressure vessel to buy or fit — lower total cost, simpler install |
| Both-end union fittings | Direct connection into existing RO plant plumbing |
| Physical pore-size filtration | Reliable bacteria/sediment removal without chemicals |
| Low-pressure operation | Lower energy cost and less wasted water than RO |
| RO pretreatment capability | Protects downstream RO membranes from microbial fouling, extending their life |
| Pairs with UV/ozone | Combine physical removal with active disinfection for full protection |
10. UF Membrane vs. RO Membrane — Quick Comparison
| UF 4040 Membrane Module (this product) | Axtron RO Membranes (Domestic/Commercial) | |
|---|---|---|
| Removes bacteria/sediment | Yes | Yes (as part of overall filtration) |
| Removes dissolved salts/TDS | No | Yes |
| Operating pressure | Low | High (RO membranes: 400–600 PSI) |
| Water recovery | High, minimal reject | Lower, produces reject/waste water |
| Housing | Integrated, ready to install | Requires separate membrane housing |
| Typical role | Pretreatment or standalone bacteria removal | Primary TDS/contaminant reduction stage |
11. Delivery & Service Coverage
| City | Coverage |
|---|---|
| Multan | Axtron office (Near Lakar Mandi Chowk, Railway Road) |
| Lahore | Axtron office (91-A Feroz Pur Road) |
| Bahawalpur | Axtron office (Opp. Sadiq Public School, Ahmad Pur East Road) |
| Karachi, Islamabad, Rawalpindi, Faisalabad | Nationwide delivery (no physical branch) |
12. FAQ Section (add via Rank Math's FAQ block for FAQPage schema)
Q1: Does this membrane kill bacteria?
A1: No — it removes bacteria through physical filtration (pore sizes too small for bacteria to pass through), rather than killing or disinfecting them chemically or with radiation. For active disinfection, pair it with a UV sterilizer or ozone generator.
Q2: Does this reduce TDS like an RO membrane?
A2: No. UF membranes remove suspended particles, bacteria, and colloids, but dissolved salts and TDS pass through — that's the RO membrane's job. UF is typically used as pretreatment ahead of RO, not a replacement for it.
Q3: Do I need to buy a separate housing for this?
A3: No — this is a complete module with the membrane already housed inside its own integrated PVC shell. Both ends have ready-to-connect fittings; just plumb it directly into your RO plant.
Q4: Who is this best suited for?
A4: Commercial RO plants using it as pretreatment, and bottled/refill water businesses dealing with heavily bacteria-contaminated raw water.
Q5: Can I use this instead of a UV sterilizer?
A5: They serve different purposes — UF physically removes bacteria, UV kills them. Many commercial systems use both together for complete protection.
Q6: Do you deliver this across Pakistan?
A6: Yes — Axtron delivers nationwide, including Karachi, Lahore, Islamabad, Rawalpindi, Faisalabad, and Multan, with physical offices in Lahore, Multan, and Bahawalpur.