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Hydranautics Reverse Osmosis Membranes – ESPA Range
The growing family of ESPA (Energy-Saving Polyamide) RO membranes continue to meet the ever-increasing demands of the water treatment industry. Industrial users worldwide have made ESPA their first choice for high productivity and salt rejection.
[su_spacer size=”30″]ESPA 1812 – Mini
| Permeate Flow | 75gpd (0.28 m3/d) |
| Salt Rejection | 99.0 % (99.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | |
| Maximum Applied Pressure | 300 psig (2.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 3.0 - 10* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 4.0 |
| Maximum Feed Flow | 3 GPM (11 l/m) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPA 2514 – Mini
| Permeate Flow | 250gpd (0.9 m3/d) |
| Salt Rejection | 99.4 % (98.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 5.1ft2 |
| Maximum Applied Pressure | 300 psig (2.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 3.0 - 10* |
| 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 | 10psi |
ESPA 2521 – Mini
| Permeate Flow | 350gpd (1.3 m3/d) |
| Salt Rejection | 99.4 % (98.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 9.9ft2 |
| Maximum Applied Pressure | 300 psig (2.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 3.0 - 10* |
| 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 | 10psi |
ESPA 2540 – Mini
| Permeate Flow | 750gpd (1.3 m3/d) |
| Salt Rejection | 99.4 % (98.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 25.5ft2 |
| Maximum Applied Pressure | 300 psig (2.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 3.0 - 10* |
| 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 | 10psi |
ESPA 4014 – 4″
| Permeate Flow | 500gpd (1.3 m3/d) |
| Salt Rejection | 99.4 % (98.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 16.9ft2 |
| Maximum Applied Pressure | 300 psig (2.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 3.0 - 10* |
| 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 | 10psi |
ESPA 4021 – 4″
| Permeate Flow | 1.000gpd (3.8 m3/d) |
| Salt Rejection | 99.4 % (98.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 28.6ft2 |
| Maximum Applied Pressure | 300 psig (2.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 3.0 - 10* |
| 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 | 10psi |
ESPA 4611 – 4″
| Permeate Flow | 930gpd (3.5 m3/d) |
| Salt Rejection | 99.4 % (98.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 31ft2 |
| Maximum Applied Pressure | 300 psig (2.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 3.0 - 10* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 4.0 |
| Maximum Feed Flow | 18 GPM (3.0 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPA 4641 – 4″
| Permeate Flow | 3600gpd (13.6 m3/d) |
| Salt Rejection | 99.4 % (97.5% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 120ft2 |
| Maximum Applied Pressure | 300 psig (2.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 3.0 - 10* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 4.0 |
| Maximum Feed Flow | 18 GPM (3.0 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPA1 4040 – 4″
| Permeate Flow | 2600gpd (9.8 m3/d) |
| Salt Rejection | 99.3 % (99.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 85ft2 |
| Maximum Applied Pressure | 600 psig (4.16 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| 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 to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPA2 LD 4040 (low fouling technology) – 4″
| Permeate Flow | 2000 gpd (7.57 m3/d) |
| Salt Rejection | 99.6 % (99.4% minimum) |
| Configuration | Low Fouling Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 80ft2 (7.43 m2) |
| Maximum Applied Pressure | 600 psig (4.16 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 2 - 11 (1-13)* |
| 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 | 10psi |
ESPA1 – 8″
| Permeate Flow | 12,000 gpd (45.4 m3/d) |
| Salt Rejection | 99.3 % (99.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 400ft2 (37.1 m2) |
| Maximum Applied Pressure | 600 psig (4.16 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 2 - 10 (1-12)* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 5.0 |
| Maximum Feed Flow | 75 GPM (17.0 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPA2 MAX – 8″
| Permeate Flow | 12,000 gpd (45.4 m3/d) |
| Salt Rejection | 99.6 % (99.5% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 440ft2 (40.8 m2) |
| Maximum Applied Pressure | 600 psig (4.16 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 2 - 10.6 (1-12)* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 5.0 |
| Maximum Feed Flow | 75 GPM (17.0 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPA2 LD – 8″
| Permeate Flow | 10,000 gpd (37.9 m3/d) |
| Salt Rejection | 99.6 % (99.5% minimum) |
| Configuration | Low Fouling Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 400ft2 (37.1 m2) |
| Maximum Applied Pressure | 600 psig (4.16 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 2 - 11 (1-13)* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 5.0 |
| Maximum Feed Flow | 75 GPM (17.0 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPA4 LD – 8″
| Permeate Flow | 12,000 gpd (45.4 m3/d) |
| Salt Rejection | 99.2 % (99.0% minimum) |
| Configuration | Low Fouling Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 400ft2 (37.1 m2) |
| Maximum Applied Pressure | 600 psig (4.16 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 2 - 10 (1-12)* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 5.0 |
| Maximum Feed Flow | 75 GPM (17.0 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPAB MAX – 8″
| Permeate Flow | 9,000 gpd (34.1 m3/d) |
| Salt Rejection | 99.3 % (99.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 440ft2 (40.8 m2) |
| Maximum Applied Pressure | 600 psig (4.16 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 2 - 11 (1-12.5)* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 5.0 |
| Maximum Feed Flow | 75 GPM (17.0 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPA4 MAX – 8″
| Permeate Flow | 13,200 gpd (50 m3/d) |
| Salt Rejection | 99.2 % (99.0% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 440ft2 (40.8 m2) |
| Maximum Applied Pressure | 600 psig (4.16 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 2 - 10 (1-12)* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 5.0 |
| Maximum Feed Flow | 75 GPM (17.0 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPA2 1640 – 16″
| Permeate Flow | 41,000 gpd (155.2 m3/d) |
| Salt Rejection | 99.6 % (99.4% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 1700ft2 (158 m2) |
| Maximum Applied Pressure | 600 psig (4.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 2 - 10.6 (1-12)* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 5.0 |
| Maximum Feed Flow | 250 GPM (56 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |
ESPAB 1640 – 16″
| Permeate Flow | 34,000 gpd (128.7 m3/d) |
| Salt Rejection | 99.3 % (99.1% minimum) |
| Configuration | Spiral Wound |
| Membrane Polymer | Composite Polyamide |
| Membrane Active Area | 1700ft2 (158 m2) |
| Maximum Applied Pressure | 600 psig (4.1 MPa) |
| Maximum Chlorine Concentration | <0.1 PPM |
| Maximum Operating Temperature | 113ºF (45ºC) |
| pH Range, Continuous (Cleaning) | 2 - 10.6 (1-12)* |
| Maximum Feedwater Turbidity | 1.0 NTU |
| Maximum Feedwater SDI (15 mins) | 5.0 |
| Maximum Feed Flow | 250 GPM (56 m3/h) |
| Minimum Ratio of concentrate to Permeate flow for any element | 5:1 |
| Maximum pressure drop for each element | 10psi |