IntegraFlo DW74 1100

Summary

Product identification

The DOW IntegraFlo™ DW102-1100 Ultrafiltration (UF) Module features high-strength, engineered PVDF hollow fiber membranes. It is designed for potable use and is suitable for treating groundwater, surface water, and seawater to produce safe drinking water.

• Model: DW102-1100
• Part Number: 00370545
• Membrane Material: PVDF hollow fiber, macro-void free
• Flow Configuration: Outside-In, Dead End Flow
• Housing Material: Streamlined PVC
• Key Features:
  • Tested and Certified by NSF International under NSF/ANSI Standard 61 ensuring safe use in drinking water applications.
  • Tested and received NSF Public Drinking Water Equipment (PDWE) Certification with >6 LRV for Cryptosporidium/Giardia and >2 LRV for viruses.
  • 102.5 m² (1103 ft²) of filtration area.
  • PVDF fibers offer excellent break resistance, chemical and fouling resistance.
  • Integrated lifting handles improve ergonomics during installation and maintenance.

Mechanical / hydraulic

• Membrane Area: 102.5 m² (1103 ft²)
• Module Volume: 32 liters (8.5 gallons)
• Weight (Empty/Shipping/Flooded): 60/70/93 kg (132/154/205 lbs)
• Dimensions (approximate):
  • L: 2359 ± 4.5 mm (92.9 ± 0.2 inch)
  • L1: 2021 ± 1.5 mm (79.6 ± 0.06 inch)
  • L2: 2172 ± 3.0 mm (85.5 ± 0.1 inch)
  • L3 (Reference): 2326 mm (91.6 inch)
  • D: 219 mm (8.6 inch)
  • W1: 190 mm (7.5 inch)
  • W2: 297 mm (11.7 inch)
• Connections:
  • 50 DN Coupler
  • G 3/8” Air (for air supply using low pressure air, the air scour connection can be made to order with a 1½ ” NPT female port)

Operating limits

• Filtrate Flux @ 25ºC: 45 - 120 l/m²/hr (26 - 71 gfd)
• Flow Range: 4.6 – 12.3 m³/hr (20.1– 53.7 gpm)
• pH, Operating: 2 - 11
• pH, Cleaning: 2 - 12
• Temperature: 1 - 40ºC (34 - 104ºF)
• Max. Inlet Module Pressure (@ 20°C): 5 bar (73 psi)
• Max. Operating TMP: 2.1 bar (30 psi)
• Max. Operating Air Scour Flow: 20 Nm³/hr (12 scfm)
• Max. Backwash TMP: 2.5 bar (36 psi)
• NaOCl (max): 2,000 mg/L

Feed water

• TSS (max): 100 mg/L
• Turbidity (max): 300 NTU
• Particle Size (max): 300 µm
• Flow Configuration: Outside In, Dead End Flow (facilitates operation in higher TSS feed waters)

Product water

• Expected Filtrate Turbidity: ≤ 0.1 NTU
• Expected Filtrate SDI: ≤ 2.5
• Certifications:
  • NSF Public Drinking Water Equipment (PDWE) Certification with >6 LRV for Cryptosporidium/Giardia.
  • NSF Public Drinking Water Equipment (PDWE) Certification with >2 LRV for viruses.

Important Operational Notes Proper start-up of the UF system is essential, including membrane pretreatment, module installation, and instrument calibration. Avoid any abrupt pressure variations during start-up, shutdown, cleaning, or other sequences to prevent membrane damage. The system should be flushed to remove shipping solution and residual air prior to operation. For initial operations, target a permeate flow of 60% of design, and discard filtrate as appropriate for the application. For system shutdowns, injecting a storage solution into the modules is recommended to prevent biological growth. Failure to strictly follow operating limits and guidelines may void the limited warranty. Refer to the product technical manual for detailed procedures, including specific conditioning for NSF/ANSI 61 certified drinking water modules and local regulatory guidelines.

---

Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions from the official OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror