Hydranautics

ESNA1-LF-LD-4040 Hydranatutics / Nitto Nano Filtration 75 PSI 1,900 GPD 4 x 40 inch Membrane

$307.30 USD

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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 $\text{CaCl}_2$ 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 $\text{m}^3/\text{d}$ )
Nominal Rejection ( $\text{CaCl}_2$ )	93% (Min 88%)
Test Conditions	500 ppm $\text{CaCl}_2$ , 75 psi, $77^\circ\text{F}$
Active Area	80 $\text{ft}^2$ (7.43 $\text{m}^2$ )
Element Size	4.0 in D x 40 in L
Max Applied Pressure	600 psig (4.14 MPa)
Max Operating Temp	$113^\circ\text{F}$ ( $45^\circ\text{C}$ )
Feed Spacer Thickness	34 mil (0.86 mm)

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ESNA1-LF-LD-4040 Hydranatutics / Nitto Nano Filtration 75 PSI 1,900 GPD 4 x 40 inch Membrane