The SpiroPure SP-BW4040 Brackish Water Industrial Reverse Osmosis Membrane Element is a high quality low pressure 4 x 40 replacement membrane filter cartridge. The SP-BW4040 brackish water ro membrane is best suited for the application of treating low salt content surface water, groundwater, tap water, and municipal water sources. Choose SpiroPure’s 4040 Brackish Water Membrane as a compatible replacement for the models listed below. Compare the 4040 brackish water membrane price here against your current supplier.
Brackish Water RO Membrane Specifications:
- Nominal Size: 4" x 40"
- Certification: NSF 61 certified
- Salt Rejection Rate: 99.5%
- Average Permeate ±15%: 2,400 GPD @ 225 PSI
- Feedwater NaCl: 2,000 ppm
- Fresh Water Recovery Rate: 15%
- Feed Spacer: 28 mm
- Maximum Recommended NaCl: <10,000 ppm
- Maximum Operating Pressure 600 PSI
BW-4040 Low Pressure Membrane common applications:
- Brackish water treatment
- Production of purified water
- Boiler feed water
- Food processing
- Pharmaceutical manufacturing
- Electronics and power industries
- Small commercial RO systems
- Municipal and tap water
- Drinking water
SP-BW4040 Low Energy Membrane Compatible Model Numbers:
- RE1-4040
- Dupont Filmtec TW30-4040
- GE SUEZ AG4040FM
- Hydronix Hydron BW-4040
- Hydranautics Nitto CPA2-4040
- LG Chen LG BW 4040 R
- Toray TML10D
- BW-4040
FAQs on 4040 Industrial RO Membrane
What is a SP-BW4040 brackish water membrane?
The SP-BW4040 is a SpiroPure brackish water reverse osmosis membrane element measuring 4" x 40", built to treat water with moderate dissolved solids in industrial and commercial applications requiring higher throughput than smaller commercial sizes.
What is the SP-BW4040 brackish water RO membrane used for?
The SP-BW4040 is best suited for treating low salt content surface water, groundwater, tap water, and municipal water sources. Common applications include production of purified water, boiler feed water, food processing, and small commercial RO systems.
What is the difference between 4040 and 8040 RO membranes?
The main difference is size and output: a 4040 membrane measures 4" x 40" while an 8040 measures 8" x 40", roughly quadrupling the membrane surface area and permeate output. The SP-BW4040 produces 2,400 GPD versus the SP-BW8040's 10,500 GPD at the same pressure.
What is the salt rejection rate of the SP-BW4040 membrane?
The SpiroPure SP-BW4040 has a stabilized salt rejection rate of 99.5%, tested at 225 PSI against 2,000 ppm feedwater NaCl. It's rated for feedwater up to 10,000 ppm NaCl maximum, suitable for typical brackish water conditions.
How long does a SP-BW4040 brackish water RO membrane last?
Most commercial RO membranes, including the SP-BW4040, last 2 to 4 or 5 years depending on feed water quality, usage volume, and pre-filtration. Poor pre-filtration or high sediment and chlorine loads can shorten that considerably, while proper usage even with continuous runtime can extend it toward the higher end.
What is the price of the SpiroPure SP-BW4040 membrane?
The SpiroPure SP-BW4040 is priced to offer genuine value against brand-name brackish water elements like the Dupont Filmtec TW30-4040 without compromising the 99.5% salt rejection performance. See this page for current RO membrane prices.
