4" x 40" | 2450 GPD | 150 psi | 99.4% Rej. | Hydranautics ESPA Low Pressure Membrane (Replaces ESPA1-4040)

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Brand Hydranautics

Hydranautics Membrane Elements
Hydranautics ESPA1-LD-4040 4" x 40" Membrane Element

Hydranautics ESPA1-LD-4040 is used in the treatment of low TDS waters to produce potable water. ESPA1-LD-4040 membrane uses Low Differential LD technology to minimize colloidal fouling when used with conventional pre-treatment equipment. LD membranes offer consistently low feed pressures and longer intervals between cleanings.

The energy required to pressurize RO feed water is the largest contributor to the total energy consumption of the RO plant. Hydranautics ESPA1-LD-4040 membranes are an ideal choice for applications demanding high-energy efficiency, with uncompromised productivity and salt rejection. Operating at significantly lower pressures, Hydranautics ESPA1-LD-4040 elements produce high quality water in a range of water treatment applications, ensuring energy cost savings.

Hydranautics ESPA1-LD-4040 membranes are used in the treatment of drinking water, industrial process waters, municipal and industrial waste water recovery and reuse because of this exception performance capability. These membranes also serve as part of polishing units in seawater desalination plants when boron rejection is critical.

ESPA1-LD-4040 is the replacement for Hydranautics ESPA1-4040 membrane element, which has been discontinued by the manufacturer.


ESPA1-LD-4040 Specifications

Manufacturer Model: ESPA1-LD-4040
Brand:  Hydranautics Nitto
Replaces Model: Hydranautics ESPA1-4040
Permeate Flow: 2,450 gpd (9.27m3/day)
Salt Rejection:  99.4% (99.2% Minimum)
Test Feed Pressure: 150 psi (1.05 MPa)
Test Temperature: 77°F (25°C)
Test Recovery: 15%
Test pH Range: 6.5 to 7.0 pH
Test Feed: 1500 ppm NaCl Solution
Configuration:  Spiral Wound
Membrane Polymer: Composite Polyamide
Membrane Active Area: 80 ft2 (7.4 m2)
Feed Spacer: 34 mil (0.864 mm)

Product Specifications for Hydranautics Membranes