Datasheet summary
SU-820L
Engineering summary from PDF text extraction for SU-820L. Verify every value with the OEM datasheet.
Summary
Product identification
- Model: SU-820L
- Membrane Type: Cross Linked Fully Aromatic Polyamide Composite
- Element Configuration: Spiral Wound
Performance Specification (tentative)
- Membrane Type: Sea Water
- Salt Rejection: 99.7 % (99.4% minimum for any single element)
- Product Flow Rate: 20.00 m³/day (5’280 gpd) (14.0 m³/day (3’700 gpd) minimum for any single element)
Test Conditions:
- Pressure: 56 kg/cm² (800 psi)
- Temperature: 25 °C (77 °F)
- Feed Concentration: 35’000 ppm Sea Water
- Brine Flow Rate: 80 l/min (21 gpm)
- Feed pH: 6.5
- Note: These values are average for 100 elements after 1 hour operation.
Operating limits
The recommended design range indicates safe operational conditions under minimal fouling and scaling. Operating outside this range may reduce effective membrane life.
- Operating Pressure: < 70 kg/cm² (1000 psi)
- Maximum: 70 kg/cm² (1000 psi)
- Feedwater Temperature: < 35 °C (95 °F)
- Maximum: 45 °C (113 °F)
- Feedwater Turbidity (SDI₁₅): < 4
- High flux operation with feedwater turbidity greater than 3 or 4 SDI₁₅ may require frequent cleaning.
- Feedwater Chlorine Concentration: 0 ppm
- pH Range, Continuous Operation: 3 - 9 (Both feed and brine water must meet this range.)
- pH Range, Chemical Cleaning: 2 - 10
- Feed Flow Rate per Vessel: < 200 l/min (52.8 gpm)
- Brine Flow Rate per Vessel: > 40 l/min (10.6 gpm)
- Brine/Permeate Flow Ratio: > 6 (per single element)
- Pressure Drop (per Element): < 1 kg/cm² (14 psi)
- Pressure Drop (per Vessel): < 2 kg/cm² (29 psi)
- Elements must be cleaned when pressure drop increases to 1.5 times the initial value.
Mechanical / hydraulic
Dimensions are depicted visually in the OEM PDF; all dimensions are shown in millimeters. See the official PDF for exact tabulated values.
Disclaimer: This summary is based solely on the extracted text. It may not include all figures, footnotes, or the latest revisions present in the complete OEM PDF datasheet. For contractual data, please refer to the specific OEM PDF 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.