Our, outside-in configuration series UF membranes are manufactured using REINFORCED PVDF (Polyethersulfone) chemistry, offering excellent chlorine tolerance, broad pH stability, and reliable long-term performance across demanding water and wastewater applications.
FILPURE® Outside-in Configuration UF series
Outside-in Configuration UF series
FILPURE® Ultrafiltration (UF) 2880/2860 module (OUTSIDE-IN)
| Parameter | Specification |
|---|---|
| Model | Filpure-2880 / Filpure-2860 |
| Membrane Type | Hollow-fiber UF |
| Polymer | Hydrophilic PVDF |
| Nominal pore size | 0.03 µm |
| Flow configuration | Outside-In |
| Membrane Area | 77 m2 (829 ft2)/52 m2 (560 ft2) |
| Housing | UPVC |
| S. N. | Project | FILPURE 2860 (52 m²) |
FILPURE 2880 (77 m²) |
|---|---|---|---|
| 1 | Maximum length of membrane assembly L1 (mm) | 1860 | 2360 |
| 2 | Lawton height of membrane module L2 (mm) | 1820 | 2330 |
| 3 | Center distance of side orifice of membrane assembly L3 (mm) | 1630 | 2130 |
| 4 | Center distance of membrane module inlet L4 (mm) | 95 | 95 |
| 5 | Side port length of membrane assembly L5 (mm) | 182.5 | 182.5 |
| 6 | Membrane assembly diameter ⌀ (mm) | 225 | 225 |
| 7 | Packing area of membrane assembly (m²) | 53 | 77 |
| 8 | Wet weight of membrane assembly (Kg) | 85 | 100 |
| 9 | Transport weight of membrane module (Kg) | 55 | 62 |
Feed Water Specification
| S.N. | Parameters | Unit | Specification |
|---|---|---|---|
| 1. | Temperature | °C | Nominal 25 / Maximum 40 |
| 2. | Particle size | µ | < 100 |
| 3. | Turbidity | NTU | 50 (Max 300) |
| 4. | Oil & Grease | Mg/l | < 1 |
| 5. | pH | 6 ~ 9 | |
| 5. | TSS | Mg/l | 50 (Max 100) |
| 6. | Chlorine tolerance | Mg/l | 200 (Instant Max. 2000) |
Module Specification
| S.N. | Parameters | Unit | Specification |
|---|---|---|---|
| 1. | Shell and Cap | – | U – PVC |
| 2. | Membrane Material of construction (MOC) | – | Modified PVDF |
| 3. | Membrane Type | – | Hollow Fiber |
| 4. | Connection | MM | DN 50 |
| 5. | End Seal Material / Potting Material | Polyurethane | |
| 6. | Flow Direction | – | Outside to In |
| 7. | Inside / Outside Diameter of Fiber | MM | 0.7 / 1.2 |
| 8. | Nominal MWCO | Dalton | 6000 ~ 1,50,000 |
| 9. | Membrane Type | – | External Pressure / Forced Type |
| 10. | Nominal Membrane Pore Size | µM | 0.03 |
Operation
| S.N. | Parameters | Unit | Specification |
|---|---|---|---|
| 1. | Operation Mode | – | Dead End / Cross – Flow |
| 2. | Temperature | °C | 4 – 40 |
| 3. | Filtrate Flux @ 25 °C | L/M2/Hr. | 40 ~ 120 |
| 4. | Feed Water Pressure @ 25 °C | Bar | 2 ~ 3 |
| 5. | Filtrate Water SDI | < 3 | |
| 6. | Filtrate Water Turbidity | NTU | < 0.3 |
Cleaning Process
| Parameters | Specification | |
|---|---|---|
| Backwash | Backwash Frequency | Every 30 Mins. |
| Backwash time | 0.5 ~ 4 minutes per session | |
| Backwashing water permeability rate | 100 ~ 150 LMH | |
| Maximum backwash pressure | 2.5 bar | |
| Flushing flow rate | 100 m3/h | |
| Flushing Time | 20 – 30 seconds each time | |
| Flushing Frequency | Combined with operation and backwashing |
Air scouring
| Parameters | Specification | |
|---|---|---|
| Air Scouring | Air per membrane element | 5 ~ 7 Nm3/Hr. |
| Air scouring time | 30 ~ 180 seconds each time | |
| Air scouring frequency | As and when required | |
| Air scouring inlet pressure | ≤ 1.0 Bar |
FILPURE® ultrafiltration (UF) modules are manufactured using high-strength hollow-fiber membranes designed to provide reliable filtration performance, excellent chemical resistance, and long membrane service life.
Key features and benefits:
- 0.03 µm nominal pore diameter — effectively removes bacteria, suspended particulates, and colloidal matter, helping protect downstream processes such as RO.
- PVDF polymeric hollow fibers — provide high mechanical strength and excellent chemical resistance, supporting long-term membrane durability.
- Hydrophilic PVDF fibers — provide good water wettability and facilitate effective membrane cleaning, helping maintain long-term filtration performance.
- Outside-In flow configuration — provides high tolerance to feed solids and can help reduce the requirement for extensive pretreatment.
- U-PVC module housing — provides a robust and corrosion-resistant housing while eliminating the need for costly external pressure vessels.
This UF modules are an ideal solution for medium- and large-capacity water-treatment systems, particularly systems with capacities above 50 m³/hr. They are suitable for a wide range of applications, including surface water treatment, industrial wastewater treatment, tertiary wastewater treatment, and pretreatment for reverse osmosis (RO) systems.
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