Semiconductor grade reverse osmosis membrane OV-SG
● Semiconductor and other electronic industries
● Product performance and characteristics
Semiconductor-grade reverse osmosis membrane elements (SG) are mainly designed for semiconductor and other electronic industries. They meet the performance requirements for ultrapure water preparation of microprocessors, semiconductors, and other silicon-based material equipment manufacturers.
It has higher rejection rates of low molecular weight organic compounds (TOC) and silicon, as well as lower dissolution amount of TOC.
● Specification parameters
Model of membrane element | Stable desalination rate(％) | Minimum desalination rate(％) | Average water productionGPD(m³/d) | Effective membrane areaft²(㎡) |
SG400 | 99.6 | 95.0 | 11500(43.5) | 400(37.2) |
SG400-LE | 99.5 | 90.0 | 11500(43.5) | 400(37.2) |
SG440-LE | 99.5 | 90.0 | 12000(45.4) | 440(40.9) |
● Testing conditions
Test pressure | 225psi(SG400) |
150psi(SG400-LE,SG440-LE)` | |
Test solution temperature | 25℃ |
Test solution concentration(NaCl) | 2000ppm(sG400) |
1500pm(SG400-LE,SG440-LE) | |
Test solution pH value | 7.5 |
Recovery rate of single membrane element | 15% |
● Operating and cleanimg limits
Maximum operating pressure | 600 psi(4.14MPa) |
Maximum inlet flow rate | 75 gpm (17m³/h) |
Maximum inlet temperature | 45℃ |
Maximum inletSDI15 | 5 |
Inlet free chlorine concentration | ＜0.1 ppm |
Inlet pH range for continuous operation | 2-11 |
Inlet pH range for chemical cleaning | 1-13 |
Maximum pressure drop of single membrane element | 15psi(0.1 MPa) |