Datasheet summary
RO SWH
Engineering summary from PDF text extraction for RO SWH. Verify every value with the OEM datasheet.
Summary
Product identification
The MICRODYN RO SWH series consists of High Rejection Seawater RO Elements, designed for high salinity water purification. These elements are available in standard 4-inch and 8-inch spiral-wound designs.
Available models:
- 4040-SWH
- 8040-SWH-400
- 8040-SWH-440
Membrane Characteristics
- Membrane Chemistry: Thin-Film Composite Polyamide
- Construction: Spiral-Wound Membrane Element with Fiberglass Outerwrap
- Stabilized Salt Rejection:
- 4040 model: 99.6%
- 8040 models: 99.82%
- Minimum Salt Rejection:
- 4040 model: 99.4%
- 8040 models: 99.7%
Product water
Permeate flow rates are measured under specific test conditions: 32,000 ppm NaCl, 55 bar (800 psi), 25°C (77°F), pH 8.0, 30 minutes operation. Test condition recovery is 10% for 4-inch models and 8% for 8-inch models. Flow rates will be no more than 15% below the values shown.
- 4040-SWH: 6.4 m³/day (1,700 GPD)
- 8040-SWH-400: 22.7 m³/day (6,000 GPD)
- 8040-SWH-440: 25.0 m³/day (6,600 GPD)
Operating limits
- Maximum Operating Pressure:
- 4040 model: 69 bar (1,000 psi)
- 8040 models: 83 bar (1,200 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
- Maximum SDI₁₅: 5.0
- Maximum Turbidity: 1 NTU
Mechanical / hydraulic
All models feature a fiberglass outer wrap and diamond shaped feed spacers.
Physical Dimensions
| Model | Dim. A – mm (inches) | Dim. B – mm (inches) | Dim. C – mm (inches) | Permeate Tube | Element Weight – kg (lb) | Membrane Area - m² (ft²) |
|---|---|---|---|---|---|---|
| 4040-SWH | 1,016 (40.0) | 99 (3.9) | 19.1 (0.75) | Male | 4 (9) | 7.9 (85) |
| 8040-SWH-400 | 1,016 (40.0) | 201 (7.9) | 28.6 (1.125) | Female | 16 (36) | 37.2 (400) |
| 8040-SWH-440 | 1,016 (40.0) | 201 (7.9) | 28.6 (1.125) | Female | 17 (37) | 40.9 (440) |
- Dimension C: For Female elements, "C" is the Inner Diameter. For Male elements, "C" is the Outer Diameter.
- Permeate Tube (Male elements only): A protruding permeate tube has a dimension "D" of 26.7 mm (1.05 in).
Important Information
- Start-up: MANN+HUMMEL Water & Fluid Solutions recommends flushing elements for 30 minutes at low pressure and discarding permeate during the flush prior to operation.
- Cleaning: MICRODYN RO membrane elements must be cleaned periodically. Refer to the "Membrane Cleaning Guide – Water Application Elements (TSG-C-001)" for details.
- Storage: MICRODYN RO membrane elements must be stored appropriately. Refer to "Element Storage Guides (TSG-O-009 & TSG-O-010)" for details.
Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must match the OEM PDF revision used on the 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.