The SpiroPure SP-BW2521 is a 2.5" x 21" brackish water commercial reverse osmosis (RO) membrane designed for compatible water treatment systems handling elevated dissolved solids.
It provides a 99.5% salt rejection rate and an average permeate flow of 300 GPD (±15%) at 225 PSI under specified test conditions.
The SP-BW2521 is a compatible replacement for select DuPont FilmTec TW30-2521 and LG Chem LG BW 2521 R membrane applications. Certified to NSF/ANSI/CAN 61, it offers a practical replacement option for compatible commercial brackish water RO systems.
Brackish Water 2521 RO Membrane Specifications:
- Nominal Size: 2.5" x 21"
- Certification: NSF 61 certified
- Salt Rejection Rate: 99.5%
- Average Permeate ±15%: 300 GPD @ 225 PSI
- Feedwater NaCl: 2,000 ppm
- Fresh Water Recovery Rate: 8%
- Feed Spacer: 28 mil
- Maximum Recommended NaCl: <10,000 ppm
- Maximum Operating Pressure 600 PSI
BW-2521 Low Pressure Brackish Water Membranes common applications:
- Brackish water treatment
- Commercial water treatment systems
- Food service
- Medical and research institutions
- Hospitality industry
- Wastewater reuse applications
- Drinking water
- Chemical processing
- Electronic industries
- Process water
SP-BW2521 Brackish RO Low Energy Membrane Compatible Model Numbers:
- Dupont Filmtec TW30-2521
- LG Chem LG BW 2521 R
FAQs on 2521 Commercial RO Membrane
What is a 2521 brackish RO membrane used for?
A 2521 brackish RO membrane treats water with elevated dissolved solids, such as well water or moderately saline municipal sources. The SpiroPure SP-BW2521 is built for small commercial applications requiring reliable performance and consistent water production from brackish feed water.
What is the size of the SpiroPure SP-BW2521 membrane?
The SpiroPure SP-BW2521 brackish RO membrane measures 2.5" x 21" matching standard commercial pressure vessel dimensions. Use cross-reference charts to find compatible membranes.
What is the salt rejection rate of the SP-BW2521 RO membrane?
The SP-BW2521 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, well within typical brackish water conditions.
How much water can the SP-BW2521 produce?
The SpiroPure SP-BW2521 produces an average permeate flow rate of 300 GPD (±15%) at 225 PSI operating pressure, with a fresh water recovery rate of 8%. Actual output depends on your system's real feed water conditions and temperature.
Can this 2521 RO membrane be used for seawater?
No. The SP-BW2521 is rated for brackish water up to 10,000 ppm NaCl, well below seawater's typical 32,000+ ppm salinity. For seawater desalination and other high TDS industrial water filtration, choose the SpiroPure SP-SW2521, engineered specifically for high-salinity, high-pressure applications.
What is the price of the SpiroPure SP-BW2521 membrane?
The SpiroPure SP-BW2521 offers a compatible replacement option for select DuPont FilmTec TW30-2521 and LG Chem LG BW 2521 R membrane applications. Its published specifications include a nominal 2.5" x 21" size, 99.5% salt rejection rate, and an average permeate flow of 300 GPD (±15%) at 225 PSI. Compare these specifications with your RO system requirements when selecting a replacement membrane.
