ESNA® Hydranautics Nanofiltration Membranes

Energy Saving Brackish Water Nanofiltration (NF) Membranes

ESNA (Energy Saving Nanofiltration) elements provide 50-91% salt rejection with ultra-low operating pressures (below 100psi), and are ideal for softening applications and the removal of pesticides, bacteria, or viruses and provide increased energy savings, and significantly lower installation and operating costs.

Advantages

Up to 91% nominal rejection
Optimum hardness rejection
Effectively removes organics.
Ultra-low pressure, energy saving, lower OPEX

Applications

Municipal Water Treatment
New technology for higher productivity; minimizes bio-fouling and colloidal fouling and enchancing cleanability

Hydranautics Nanofiltration NF Membranes ESNA Series
Hydranautics Membrane ESNA Nanofiltration NF Membranes

Model No. (Click for spec. sheet)	Flow Rate*		Pressure Rating (PSI)	*Nominal CaCl2 Rejection %**	Minimum CaCl2 *Rejection %**	Size* (Dia. x L)	Spec.
Model No. (Click for spec. sheet)	(GPD)	(m3/d)	Pressure Rating (PSI)	*Nominal CaCl2 Rejection %**	Minimum CaCl2 *Rejection %**	Size* (Dia. x L)	Spec.
ESNA1-LF-4040	1,750	6.6	75	89	86	4" × 40"
ESNA1-LF2-4040	2,230	8.4	75	86	83	4" × 40"
ESNA1-LF-LD	8,200	31.0	75	89	86	8" × 40"
ESNA1-LF2-LD	10,500	39.7	75	86	83	8" × 40"

Hydranautics ESNA Nanofiltration Membranes

Obsolete ENSA Membrane Models

The below Hydranautics ESNA Membrane Models are Obsolete and are no longer available for purchase. The below information is being listed for reference and replacement purposes only.

Model No.	Flow Rate (GPD)	Size (Inches)
ESNA1-4040 - Not Available - use AMI Brand Nanofiltration Membranes	2,100	4" × 40"
ESNA1 - Not Available - select replacement from table above.	10,000	8" × 40"

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