ESNA1-LF-LD-4040 Hydranatutics / Nitto Nano Filtration 75 PSI 1,900 GPD 4 x 40 inch Membrane
ESNA1-LF-LD-4040 Hydranatutics / Nitto Nano Filtration 75 PSI 1,900 GPD 4 x 40 inch Membrane
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PLEASE REFERENCE DATA SHEETS & TABLE BELOW
💧 Hydranautics ESNA1-LF-LD-4040 Nanofiltration Membrane
The Hydranautics ESNA1-LF-LD-4040 is a high-performance, Nanofiltration (NF) membrane element from the Energy Saving Nanofiltration (ESNA) series. Designed for water softening applications and the removal of organics, pesticides, bacteria, and viruses, this membrane operates at ultra-low pressure, maximizing energy savings and lowering operational costs.
This element uses a Low Fouling (LF) spiral wound configuration combined with a thick 34-mil feed spacer containing a biostatic agent. The Low Differential (LD) design minimizes the pressure drop across the element, reducing colloidal fouling and extending the element's service life. It provides optimum hardness rejection, with a nominal rejection of 93% for at a test pressure of only 75 psi.
Technical Specifications Summary
| SPECIFICATION | DETAILS |
| Model Number | ESNA1-LF-LD-4040 |
| Manufacturer | Hydranautics (Nitto) |
| Membrane Type | Nanofiltration (NF) |
| Configuration | Low Fouling Spiral Wound |
| Nominal Permeate Flow | 1,900 GPD (7.2 ) |
| Nominal Rejection () | 93% (Min 88%) |
| Test Conditions | 500 ppm , 75 psi, |
| Active Area | 80 (7.43 ) |
| Element Size | 4.0 in D x 40 in L |
| Max Applied Pressure | 600 psig (4.14 MPa) |
| Max Operating Temp | () |
| Feed Spacer Thickness | 34 mil (0.86 mm) |
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