Specifications model ESPA4-LD-HP Hydranautics membrane elements are favorite elements for maple sap concentration, balancing high sucrose rejection with high flux. This composite polyamide membrane provides better than 99% sucrose rejection, making it ideal for removing water from maple sap before further concentration in the evaporator step. It is provided in 8040 sizes with 34 mil feed spacer and high-pressure construction.
Permeate Flow (Nominal): 11,000 gpd (41.6 m3/h)
Salt Rejection: 99.2% (99.0% minimum)
Test Conditions: 500 ppm NaCI Solution
100 psig (0.69 MPa) Applied Pressure
77 °F (25 °C) Operating Temperature
15% Permeate Recovery
6.5 - 7.0 Feed pH
Configuration: Spiral Wound with FRP wrapping (high pressure construction)
Membrane Polymer: Composite Polyamide
Membrane Active Area**: 400 ft2 (37.2 m2)
Feed Spacer: 34 mil (0.86 mm)
Maximum Applied Pressure: 1200 psig (8.27 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: 85 gpm (19.3 m3/h)
Minimum Brine Flow: 12 gpm (2.7 m3/h)
Maximum Pressure Drop for Each Element: 15 psi (0.10 MPa)
Specifications model ESPA4-LD-HP Hydranautics membrane elements are favorite elements for maple sap concentration, balancing high sucrose rejection with high flux. This composite polyamide membrane provides better than 99% sucrose rejection, making it ideal for removing water from maple sap before further concentration in the evaporator step. It is provided in 8040 sizes with 34 mil feed spacer and high-pressure construction.
Permeate Flow (Nominal): 11,000 gpd (41.6 m3/h)
Salt Rejection: 99.2% (99.0% minimum)
Test Conditions: 500 ppm NaCI Solution
100 psig (0.69 MPa) Applied Pressure
77 °F (25 °C) Operating Temperature
15% Permeate Recovery
6.5 - 7.0 Feed pH
Configuration: Spiral Wound with FRP wrapping (high pressure construction)
Membrane Polymer: Composite Polyamide
Membrane Active Area**: 400 ft2 (37.2 m2)
Feed Spacer: 34 mil (0.86 mm)
Maximum Applied Pressure: 1200 psig (8.27 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: 85 gpm (19.3 m3/h)
Minimum Brine Flow: 12 gpm (2.7 m3/h)
Maximum Pressure Drop for Each Element: 15 psi (0.10 MPa)
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