Hydranautics Membrane 4040 Espa3 / ESPA4

ESPA3-4040 Specifications:

Permeate Flow: 2500 gpd (11.4 m3/d)
Salt Rejection (nominal) 98.5 %
Type Configuration: Spiral Wound
Membrane Polymer: Composite Polyamide
Nominal Membrane Area: 85 ft2
The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

1500 PPM NaCl solution
150 psi (1.05 MPa) Applied Pressure
77 °F (25 °C) Operating Temperature
15% Permeate Recovery
6.5 – 7.0 pH Range
Standard Operating Limits:

Maximum Applied Pressure: 600 psig (4.16 MPa)
Maximum Chlorine Concentration: < 0.1 PPM Maximum Operating Temperature: 113 °F (45 °C) Feedwater pH Range: 3.0 - 10.0 Maximum Feedwater Turbidity: 1.0 NTU Maximum Feedwater SDI (15 mins): 5.0 Maximum Feed Flow: 16 GPM (3.6 m3/h) Minimum Ratio of Concentrate to Permeate Flow for any Element: 5:1 Maximum Pressure Drop for Each Element: 10 psi ESPA4-4040 Specifications: Permeate Flow: 2,500 gpd (9.46 m3/d) Salt Rejection: 99.2% (99.0% minimum) Configuration: Spiral Wound Membrane Polymer: Composite Polyamide Membrane Active Area: 85ft2(7.9m2) The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions(Data taken after 30 minutes of operation): 500 PPM NaCl solution 100 psi (0.7 MPa) Applied Pressure 77°F (25°C) Operating Temperature 15% Permeate Recovery 6.5 - 7.0 pH Range Standard Operating Limits: Maximum Applied Pressure: 600 psig (4.16 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): 5.0 Maximum Feed Flow: 16 GPM (3.6 m3/h) Minimum Ratio of Concentrate toPermeate Flow for any Element: 5:1 Maximum Pressure Drop for Each Element: 10 psi 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.