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Hydranautics ESPA2 LD Membrane

Product Description

Hydranautics stocks a full line of energy-saving polyamide membranes. ESPA2 LD has minimized biofouling, minimized colloidal fouling and enhanced cleanability. Industrial users worldwide have made ESPA their first choice for high productivity and salt rejection. The growing family of ESPA (Energy-Saving Polyamide) RO membranes continue to meet the ever-increasing demands of the water treatment industry.

[custom-specifications]
Attributes of the ESPA2 LD:
  • Permeate Flow: 10,000 gpd (37.9 m3/d)
  • Salt Rejection: 99.6% (99.5% minimum)
  • Configuration: Low Fouling Spiral Wound
  • Membrane Polymer: Composite Polyamide
  • Membrane Active Area: 400ft2 (37.1m2)
  • Feed Spacer: 34 mil (0.864 mm) with biostatic agent

The stated performance is initial (data taken after 30 minutes of operation), based on the following conditions:

  • 1500 PPM NaCl solution
  • 150 psi (1.05 MPa) Applied Pressure
  • 77 F (25°C) Operating Temperature
  • 15% Permeate Recovery
  • 6.5 - 7.0 pH Range
[/custom-specifications]
[custom-features]
Standard Operating Limits
  • Maximum Applied Pressure: 600 psig (4.16 MPa)
  • Maximum Chlorine Concentration: < 0.1 PPM
  • Maximum Operating Temperature: 113°F (45°C)
  • pH Range, Continuous (Cleaning): 2-11 (1-13)*
  • Maximum Feedwater Turbidity: 1.0 NTU
  • Maximum Feedwater SDI (15 mins): 5.0
  • Maximum Feed Flow: 75 GPM (17.0 m3/h)
  • Minimum Ratio of Concentrate to Permeate Flow for any Element: 5:1
  • Maximum Pressure Drop for Each Element: 10 psi

The limitations shown here are for general use. For specific projects, operating at more conservative values may ensure the best performance and longest life of the membrane. See Hydranautics Technical Bulletins for more detail on operation limits, cleaning pH, and cleaning temperatures.

[/custom-features]
[custom-usage]
  • Municipal Potable and Wastewater Plants
  • Bottling Operations
  • Light Industrial
[/custom-usage]
[custom-documents] [/custom-documents]
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  • 5
    You have the quantity in stock

    Posted by Robert M. on Oct 6th 2019

    We ordered large quantity and you were able to satisfy our need on time. Thanks!

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