MANN+HUMMEL · Pressure-driven hollow-fiber UF • Retrofit module
Product Information

Dimensional notes: Module dimensions follow the manufacturer's L and D/OD labels. Fiber diameter is the stated inner diameter. Feed and permeate port sizes are nominal; refer to the detailed drawing and specifications for fit. No ±1 mm dimensional tolerance is stated in the supplied datasheet.
A PVDF hollow-fiber ultrafiltration retrofit module with outside-in, dead-end filtration for industrial and municipal water treatment. Applications include seawater, surface water, well water, and secondary or tertiary wastewaters.
Membrane & element specifications
| Parameter | Specification |
|---|---|
| Membrane polymer | Polyvinylidene fluoride (PVDF) |
| Nominal pore size | 0.025 µm |
| Membrane type | Hollow fiber |
| Hollow-fiber diameter OD/ID | 1.3/0.7 mm (0.051/0.028 in) |
| Nominal membrane area — m² (ft²) | 78 (839) |
| Housing material | Unplasticized polyvinyl chloride (uPVC) |
| Membrane potting | Epoxy/polyurethane (PU) |
| Filtration flow path | Outside in, dead-end flow |
Operating parameters
| Parameter | Specification |
|---|---|
| Filtrate flow range | 3.1–9.3 m³/h (13.6–40.8 gpm) |
| Maximum feed pressure (at 20°C / 68°F) | 6.25 bar (93.75 psi) |
| Maximum transmembrane pressure | 2.3 bar (33.4 psi) |
| Maximum backflush pressure | 2.5 bar (36.3 psi) |
| Maximum air scour rate | 12 Nm³/h (7.1 scfm) |
| Maximum air scour pressure | 1.2 bar (17.4 psi) |
| pH range for operation | 2.0–11.0 |
| Temperature range | 1–40 °C (33.8–104 °F) |
Cleaning parameters
| Parameter | Specification |
|---|---|
| pH range | 2.0–12.0 |
| Maximum temperature | 40 °C (104 °F) |
| Maximum active chlorine concentration | 2,000 ppm |
| Maximum active chlorine exposure | ≤ 1,000,000 ppm-hours |
| Cleaning chemicals | Sodium hypochlorite, caustic, hydrochloric/sulfuric/citric acid |
Physical dimensions
| Parameter | Specification |
|---|---|
| Dry/wet weight | 61 kg (135 lb) / 100 kg (220 lb) |
| Module diameter (OD) | 225 mm (8.9 in) |
| Module length (L) | 2,360 mm (92.9 in) |
| L1 | 2,130 mm (83.9 in) |
| L2 | 2,265 mm (89.6 in) |
| Feed/reject port | 2" Victaulic |
| Permeate port | 2" Victaulic |
Source specification note: The source prints maximum feed pressure as 6.25 bar (93.75 psi) and L2 as 2,265 mm (89.6 in). These paired units are preserved as supplied; confirm them with the manufacturer.
Important qualifications
- MANN+HUMMEL Water & Membrane Solutions reserves the right to change specifications without prior notification.
Start-up, cleaning & storage
Handle and store the module appropriately to ensure proper operation and prevent membrane damage. Install correctly before start-up and clean routinely via backwash. Refer to the PureULTRA PHF-78-V User Manual for storage, handling, installation, start-up and cleaning procedures.
Manufacturer datasheet
pureultra_phf_all_modules_datasheet.pdf · Rev. 2606 · Pages 9–10. Specifications and units above follow the supplied manufacturer document.
The co-branded edition adds BioProcessH2O contact details while retaining the manufacturer's technical content.
Download BioProcessH2O datasheet
