2.5x21 / 2521 Commercial RO Membrane Replacement
SpiroPure commercial RO membranes in size 2.5x21 are your best choice for your smaller commercial RO systems and other reverse osmosis needs. 2521 membrane elements such as the brackish water BW-2521 RO membrane and the XLE-2521 / XLP 2521 extremely low pressure membrane help provide high performance treatment of TDS. Try SW-2521 seawater desalination membranes for high rejection of sodium for treatment of sea water and other high salinity applications. When you need low pressure, low energy membranes with high RO performance, the brackish water and extreme low pressure elements provide two different options for lower pressure requirements, for lower energy consumption and more energy savings.
Membrane Type |
Model |
Rejection Rate |
Average Permeate ±15% |
Feedwater NaCl |
Fresh Water Recovery Rate |
Concentration of Salt Solution (Feedwater NaCl) |
Feed Spacer |
Maximum Recommended NaCl |
Maximum Operating Pressure |
|
|---|---|---|---|---|---|---|---|---|---|---|
2521 RO Membranes |
Extremely Low Pressure |
98.5% |
|
500 ppm |
8% |
500 ppm |
28 mm |
< 2,000 ppm |
600 psi |
|
Brackish Water |
99.5% |
|
2,000 ppm |
8% |
2,000 ppm |
28 mm |
< 10,000 ppm |
600 psi |
||
Seawater Desalination |
99.5% |
|
32,000 ppm |
4% |
32,000 ppm |
28 mm |
< 40,000 ppm |
1,200 psi |
