Datasheet summary
RO BW
Engineering summary from PDF text extraction for RO BW. Verify every value with the OEM datasheet.
Summary
Product identification
- Series: MICRODYN RO
- Product Type: High Rejection Brackish Water RO Elements
- Certification: NSF/ANSI Standard 61 for use in drinking water systems
- Membrane Chemistry: Thin-Film Composite Polyamide
- Available Designs: Standard 4” and 8” spiral-wound
Element Specifications
| Model | Permeate Flow - m³/d (GPD) | Membrane Area - m² (ft²) |
|---|---|---|
| 4040-TW | 9.3 (2,450) | 7.9 (85) |
| 4040-BW | 9.3 (2,450) | 7.9 (85) |
| 8040-BW-365 | 38.0 (10,050) | 33.9 (365) |
| 8040-BW-400 | 41.6 (11,000) | 37.2 (400) |
| 8040-BW-400/34 | 41.6 (11,000) | 37.2 (400) |
| 8040-BW-440 | 45.4 (12,000) | 40.9 (440) |
Test conditions for permeate flow: 1,500 ppm NaCl, 15.5 bar (225 psi), 25°C (77°F), 15% recovery, pH 8.0, 30 minutes operation. Flow rates will be no more than 15% below the values shown.
Mechanical / Hydraulic
Physical Dimensions
| Model | Dim. A – mm (inches) | Dim. B – mm (inches) | Dim. C – mm (inches) | Permeate Tube | Outerwrap Type | Weight – kg (lb) |
|---|---|---|---|---|---|---|
| 4040-TW | 1,016 (40.0) | 99 (3.9) | 19.1 (0.75) | Male | Tape | 4 (9) |
| 4040-BW | 1,016 (40.0) | 99 (3.9) | 19.1 (0.75) | Male | Fiberglass | 4 (9) |
| 8040-BW-365 | 1,016 (40.0) | 201 (7.9) | 28.6 (1.125) | Female | Fiberglass | 16 (36) |
| 8040-BW-400 | 1,016 (40.0) | 201 (7.9) | 28.6 (1.125) | Female | Fiberglass | 16 (36) |
| 8040-BW-400/34 | 1,016 (40.0) | 201 (7.9) | 28.6 (1.125) | Female | Fiberglass | 16 (36) |
| 8040-BW-440 | 1,016 (40.0) | 201 (7.9) | 28.6 (1.125) | Female | Fiberglass | 17 (37) |
Notes:
- For Male elements, Dim. C is the Outer Diameter. For Female elements, Dim. C is the Inner Diameter.
- Male elements have a protruding permeate tube (Dimension "D") of 26.7 mm (1.05 in).
- All models on this sheet have diamond shaped feed spacers.
Operating limits
- Maximum Operating Pressure:
- Tape Outerwrap Models: 21 bar (300 psi)
- Fiberglass Outerwrap Models: 41 bar (600 psi)
- Maximum Operating Temperature: 45°C (113°F)
- Cleaning pH Range: 1.0 – 12.0
- Chlorine Tolerance: < 0.1 ppm
- Maximum Pressure Drop: 1 bar (15 psi) per element; 4 bar (60 psi) per housing
Feed water
- Maximum SDI₁₅: 5.0
- Maximum Turbidity: 1 NTU
Product water
- Stabilized Salt Rejection: 99.5%
- Minimum Salt Rejection: 99.0%
Important Information
- Start-up: Flush elements for 30 minutes at low pressure and discard permeate prior to operation.
- Cleaning: Periodic cleaning is required to ensure proper operation and prevent membrane damage. Refer to the Membrane Cleaning Guide.
- Storage: Elements must be stored appropriately. Refer to the Element Storage Guides.
- Regulatory: All models are certified to NSF/ANSI Standard 61 for use in drinking water systems.
- Customization: MANN+HUMMEL Water & Fluid Solutions offers custom membrane and element designs for challenging applications, including low-fouling RO, submerged UF, continuous high temperature, ultra-high pressure, and unique sanitary designs.
Disclaimer: This summary is based on extracted text from a PDF datasheet and may not include all figures, footnotes, or the latest revisions. For contractual data, always refer to the official OEM PDF document revision used on your project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.