
LP&ULP Industrial RO Membrane Element
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Features
- The products are suitable to treat waste water with TDS lower than 2000 ppm.
- High permeate flow and salt rejection under low pressure.
- Achieve a salt rejection rate of up to 99.5%.
- Reduce operating costs for the RO system.
Application
- Industrial-purpose pure water
- Food processing
- Boiler water replenishment
- Pharmaceutical production
- Beverage-purpose water
- Municipal water
- Pure water production
- Commercial Water
Specification


Model | A inch (mm) | B inch (mm) | C inch (mm) | D inch (mm) |
ROLP4040 | 40 (1016) | 3.94 (99.6) | 0.75 (19.1) | 1.05 (26.7) |
ROLP8040 | 40 (1016) | 7.84 (201.8) | 1.13 (28.6) | - |
ROULP4021 | 21 (533) | 3.94 (99.6) | 0.75 (19.1) | 1.05 (26.7) |
ROULP4040 | 40 (1016) | 3.94 (99.6) | 0.75 (19.1) | 1.05 (26.7) |
ROULP8040 | 40 (1016) | 7.84 (201.8) | 1.13 (28.6) | - |
Specifications
Model | Active Membrane Area ft2 (m2) |
Average Permeated Flow GPD (m3/d) | Stable Rejection Rate (%) |
Minimum Rejection Rate (%) |
ROLP4040 | 90 (8.4) | 2700 (10.2) | 99.3 | 99 |
ROLP8040 | 400 (37.2) | 10000 (37.9) | 99.5 | 99.2 |
ROULP4021 | 38 (3.5) | 1000 (3.8) | 99 | 98 |
ROULP4040 | 90 (8.4) | 2500 (9.5) | 99 | 98.5 |
ROULP8040 | 400 (37.2) | 11000 (41.6) | 99 | 98.5 |
Testing Conditions
Conditions Model | LP Element | ULP Element | |
Testing pressure (psi) | 225 | 150 | |
Testing Solution Concentration (NaCl/ppm) | 2000 | 2000 | |
Testing Temperature (°C) | 25 | 25 | |
Testing pH | 7.5 | 7.5 | |
Recovery Rate of Single Element (%) | 15 | 8 (4021) | 15 (4040/8040) |
Points of Attentions
The permeate flow listed in the table is the average value. The permeate flow of single membrane element is with a tolerance not exceeding ±15%.
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