The SpiroPure SP-ES8040 is an 8 x 40 industrial reverse osmosis membrane designed for lower-pressure applications with low-salinity feed water. Published specifications include average permeate of 10,500 GPD at 150 PSI, 99.4% nominal salt rejection, a 34 mil feed spacer, 1,500 ppm feedwater NaCl test conditions, and a maximum recommended NaCl below 5,000 ppm. Before replacing an existing membrane, compare the system requirements and operating conditions with the specifications below.
Energy Saving RO Membrane Specifications:
- Nominal Size: 8" x 40"
- Certification: NSF 61 certified
- Salt Rejection Rate: 99.4%
- Average Permeate ±15%: 10,500 GPD @ 150 PSI
- Feedwater NaCl: 1,500 ppm
- Fresh Water Recovery Rate: 15%
- Feed Spacer: 34 mm
- Maximum Recommended NaCl: 5,000 ppm
- Maximum Operating Pressure 600 PSI
SP-ES8040 Low Energy Membrane common applications:
- Very low salt content surface water treatment
- Production of purified water
- Boiler feed water
- Food processing
- Pharmaceutical manufacturing
AllFilters currently cross-references SP-ES8040 as a compatible replacement option for the following model numbers:
- Dupont Filmtec BW30XFRLE-400/34
- Hydranautics Nitto ESPA2-LD
- Toray TLF-400DG
Use the cross-reference as a starting point, then compare dimensions, feed spacer, operating/test conditions, permeate rating and other system requirements before substitution. Compatibility does not mean every specification is identical to the referenced membrane.
Is SP-ES8040 the Right 8040 Membrane for My System?
- Confirm the required membrane size is 8 x 40
- Compare the system's feed-water salinity/TDS range with the product's stated test conditions and maximum recommended NaCl
- Compare required permeate capacity with the published 10,500 GPD rating at 150 PSI under stated conditions
- Confirm the 34 mm feed spacer and other physical/system requirements
- Compare the existing membrane model with the verified cross-reference list
- If your application requires extremely low pressure, ultra-low pressure, brackish-water, fouling-resistant or seawater service, compare the other 8040 membrane types before choosing SP-ES8040
FAQs on 8040 Industrial RO Membrane
What is the SP-ES8040 RO membrane?
SP-ES8040 is a SpiroPure 8 x 40 industrial reverse osmosis membrane in the energy-saving/low-pressure 8040 family. Its published performance includes 10,500 GPD average permeate at 150 PSI and 99.4% nominal salt rejection under the stated test conditions.
What membranes can SP-ES8040 replace?
AllFilters currently cross-references SP-ES8040 with DuPont / FilmTec BW30XFRLE-400/34, Hydranautics / Nitto ESPA2-LD and Toray TLF-400DG. Confirm system requirements and specifications before substitution.
Is SP-ES8040 the same as BW30XFRLE-400/34?
No. It is a SpiroPure compatible replacement reference, not the DuPont / FilmTec product itself. Compare the published specifications and system requirements rather than assuming every characteristic is identical.
What is the rated flow of SP-ES8040?
AllFilters lists average permeate of 10,500 gallons per day, plus or minus 15%, at 150 PSI under the stated test conditions. Actual system output can vary with operating conditions.
What feed-water salinity is SP-ES8040 designed around?
The published test conditions list 1,500 ppm feedwater NaCl and a maximum recommended NaCl below 5,000 ppm. Use the complete product specifications and system design requirements when selecting a membrane.
Should I choose SP-ES8040 or another 8040 membrane type?
Choose based on the feed water, operating pressure, required rejection/capacity, fouling conditions and system design. The AllFilters 8040 family page compares energy-saving, extremely low-pressure, ultra-low-pressure, brackish-water, fouling-resistant and seawater options.
