Hydranautics ESNA1-LF-LD


ESNA1-LF-LD are high-performance nanofiltration membranes ideal for softening applications and removal of pesticides, bacteria and viruses. They provide 50%-90% salt rejection with ultra-low-pressure operations, increased energy savings, and significantly lower installation and operating costs.

They use patented Low Differential LDTM technology designed to minimize colloidal fouling.

ESNA1-LF-LD membranes use a patented 34 mil thickness feed spacer that prevents colloidal fouling and increases the effectiveness of membrane cleaning. As a result, the ESNA1-LF-LD membrane does not need to be cleaned frequently – thus reducing treatment cost – while offering extreme durability and consistent performance.

ESNA1-LF-LD membrane is globally acclaimed for high hardness rejection characteristics in softening applications. It significantly reduces operating costs and provides optimum hardness rejection in softening applications.

ESNA1-LF-LD membrane is available in 4-inch and 8-inch diameter sizes.

Availability In stock (>5 pcs)
€706,64 incl. VAT
Product code 31
Brand Hydranautics
Category Nano/Micro Filtration Membranes
Warranty 1 year
General Product Description*  
Size: 8″ diameter & 40″ length
Permeate Flow: 9,500 gpd (36.0 m3 /d)
CaCl2 Rejection: 93%
CaCl2 Rejection (Minimum/Maximum): 88%/97%
Configuration: Low Fouling Spiral Wound
Membrane Polymer: Composite Polyamide
Product Use and Restrictions  
Maximum Applied Pressure: 600 psig (4.14 MPa)
Maximum Chlorine Concentration: < 0.1 ppm
Maximum Operating Temperature: 113 °F (45 °C)
pH Range, Continuous (Cleaning): 2-10 (1-12 at 25 °C for 30 minutes)
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)
*Please refer to standard testing conditions and details in the enclosed datasheet
Weight 15 kg

Solutions You Need, Technologies You Trust!
Hydranautics is one of the global leaders in membrane technology. We apply state-of-the-art technology to manufacture industry’s most advanced, high-performance membrane products.