Datasheet summary
ESPA-2540
Engineering summary from PDF text extraction for ESPA-2540. Verify every value with the OEM datasheet.
Summary
Product identification
- Membrane Element: ESPA-2540
- Configuration: Spiral Wound
- Membrane Polymer: Composite Polyamide
- Membrane Active Area: 25.5 ft²
Performance
- Permeate Flow: 750 gpd (2.84 m³/d)
- Salt Rejection: 99.4 % (98.0 % minimum)
Operating limits
- Maximum Applied Pressure: 300 psig (2.1 MPa)
- Maximum Chlorine Concentration: < 0.1 PPM
- Maximum Operating Temperature: 113° F (45°C)
- pH Range, Continuous (Cleaning): 2-10 (1-12)
- Maximum Feedwater Turbidity: 1.0 NTU
- Maximum Feedwater SDI (15 mins): 4.0
- Maximum Feed Flow: 6 GPM (23 l/m)
- Minimum Ratio of Concentrate to Permeate Flow for any element: 5:1
- Maximum Pressure Drop for Each Element: 10 psi
Note: The limitations shown here are for general use. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane. See Hydranautics Technical Bulletins for more detail on operation limits, cleaning pH, and cleaning temperatures.
Test Conditions
Elements are wet tested for quality assurance using the following conditions:
- 1500 PPM NaCl solution
- 150 psi (1.03 MPa) Applied Pressure
- 77 °F (25 °C) Operating Temperature
- 10% Permeate Recovery
- 6.5 – 7.0 pH Range (Data taken after 30 minutes of operation)
Mechanical / hydraulic
- A: 40.0 inches (1016 mm)
- B: 2.4 inches (61 mm)
- C: 0.75 inches (19.1 mm)
- Weight: 4 lbs. (1.8 kg)
- Core tube extension: 1.10” (27.9 mm)
Packaging
- 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 extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must always 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.