Datasheet summary
SWC-4021
Engineering summary from PDF text extraction for SWC-4021. Verify every value with the OEM datasheet.
Summary
Product identification
- Membrane Element: SWC - 4021
- Configuration: Spiral Wound
- Membrane Polymer: Composite Polyamide
Performance
- Permeate Flow: 640 gpd (2.4 m³/d)
- Salt Rejection: 99.4 % (99.0% minimum)
Operating limits
- Maximum Applied Pressure: 1,000 psig (6.9 MPa)
- Maximum Chlorine Concentration: < 0.1 PPM
- Maximum Operating Temperature: 113° F (45°C)
- pH Range; Continuous (Cleaning): 3.0 –10.0
- Note: These limitations are for general use. More conservative values may ensure best performance and longest life for specific projects. Refer to Hydranautics Technical Bulletins for more detail on operation limits, cleaning pH, and cleaning temperatures.
- Maximum Feedwater Turbidity: 1.0 NTU
- Maximum Feedwater SDI (15 mins): 4.0
- Maximum Feed Flow: 12 GPM (45.4 l/m)
- Minimum Ratio of Concentrate to Permeate Flow for any element: 5:1
- Maximum Pressure Drop for Each Element: 10 psi
Test Conditions
Elements are wet tested for quality assurance using the following conditions (data taken after 30 minutes of operation):
- NaCl solution: 32000 PPM
- Applied Pressure: 800 psi (5.5 MPa)
- Operating Temperature: 77 °F (25 °C)
- Permeate Recovery: 10%
- pH Range: 6.5 – 7.0
Mechanical / hydraulic
- Dimensions:
- A: 21.0 inches (533.4 mm)
- B: 3.95 inches (100.3 mm)
- C: 0.75 inches (19.1 mm)
- Weight: 4 lbs. (1.8 Kg)
- Core tube extension: 1.10” (27.9 mm)
Additional Notes
- Minimum permeate flow for individual elements is 15 percent below listed flow.
- All membrane elements are supplied with a brine seal and o-rings.
- Most elements are packaged dry, sealed in polyethylene bags, and shipped in a cardboard box.
- Some elements are sealed in polyethylene bags containing less than 1.0% sodium meta-bisulfite solution and shipped in a cardboard box.
Disclaimer: This summary is based on text extracted from an OEM PDF datasheet. It may miss figures, footnotes, or the latest revisions. Contractual data must match the specific 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.