Toray
TMG20D-400 Toray 12,100 GPD at 150 PSI 8 x 40 inch 99.7% Rejection Membranes
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TORAY TMG20D-400 (Low Pressure Brackish Water RO Membrane)
The TORAY TMG20D-400 is a leading 8-inch by 40-inch Reverse Osmosis (RO) element from the TMG(D) series, engineered for high rejection in brackish water applications with a primary focus on low-pressure operation and energy efficiency. This element features an advanced cross-linked fully aromatic polyamide composite membrane that achieves a high nominal salt rejection of 99.7%.
Designed to operate at an incredibly low test pressure of just 150 PSI, the TMG20D-400 delivers a substantial nominal flow rate of 12,100 GPD. This ultra-low pressure requirement translates directly into significant energy savings and reduced wear on high-pressure pumps, making it ideal for municipal drinking water, industrial process water, and commercial applications where energy cost reduction is a top priority.
Specifications Table
| Characteristic | Specification | Units / Notes |
| Model | TMG20D-400 | Low Pressure Brackish RO |
| Membrane Type | Cross-linked Polyamide Composite | Fully Aromatic |
| Element Dimensions (Nominal) | 8.0×40 | inches |
| Active Area | 400 (37) | sq ft (sq m) |
| Permeate Flow Rate (Nominal) | 12,100 (45.8) | GPD (m3/day). ±15% tolerance |
| Nominal Salt Rejection | 99.7 | % |
| Minimum Salt Rejection | 99.5 | % |
| Applied Pressure (Test) | 150 (10.3) | PSI (Bar) |
| Maximum Operating Pressure | 600 (41) | PSI (Bar) |
| Max Operating Temperature | 113 (45) | F (C) |
| Continuous pH Range | 2−11 | - |
| Max Pressure Drop per Element | 15 (0.10) | PSI (MPa) |
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