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Hydranautics ESPA-2514 Membrane

Product Description

ESPA® (Energy Saving Polyamide) elements achieve high flux/lower pressure without compromising standards for high rejection. Since its introduction in the late 1990s, the ESPA® membrane has gained wide acceptance in the water treatment industry due to the significant operational cost savings associated with their use. 4” and 8” configurations available.

The ESPA-2514 offers unparalleled performance when it comes to your commercial or industrial water treatment needs. Industrial users worldwide have made ESPA their first choice for high productivity and salt rejection because the growing family of ESPA (Energy-Saving Polyamide) RO membranes continue to meet the ever-increasing demands of the water treatment industry.

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ESPA-2514 Specifications
  • Permeate Flow: 250 gpd (0.9m3/d)
  • Salt Rejection : 99.4% (98.0% minimum)
  • Configuration: Spiral Wound
  • Membrane Polymer: Composite Polyamide
  • Membrane Active Area: 5.1ft2

Test Conditions Elements are wet tested for quality assurance using the following conditions:

  • 1500 PPM NaCl solution
  • 150 psi (1.03 MPa) Applied Pressure
  • 77°F (25°C) Operating Temperature
  • 10% Permeate Recovery
  • 6.5 – 7.0 pH Range
  • (Data taken after 30 minutes of operation)
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[custom-features]

Standard Operating Limits

  • Application Data* Maximum Applied Pressure: 300 psig (2.1 MPa)
  • Maximum Chlorine Concentration: < 0.1 PPM
  • Maximum Operating Temperature: 113°F (45°C)
  • pH Range; Continuous (Cleaning): 3.0 –10.0
  • Maximum Feedwater Turbidity: 1.0 NTU
  • Maximum Feedwater SDI (15 mins): 4.0
  • Maximum Feed Flow: 6 GPM (23 l/m)
  • 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. 

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[custom-usage]

Ideal Applications Include:

  • Municipal Potable and Wastewater Plants
  • Bottling Operations
  • Light industrial
[/custom-usage]
[custom-documents]Hydranautics ESPA-2514 Membrane [/custom-documents]
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