Hydrocomponents & Technologies Inc.
TM820C-400 TORAY Desalination Machine Seawater Membranes
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TM820C-400 TORAY Desalination Machine Seawater Membranes
PLEASE REFERENCE DATA SHEET AND TABLE BELOW
Toray TM820C-400 High Rejection Seawater RO Membrane
The Toray TM820C-400 is an industrial-grade Seawater Reverse Osmosis (SWRO) membrane element, meticulously engineered for high-salinity water sources typically exceeding 10,000 ppm TDS. As part of Toray's TM800C series, this 8-inch diameter element is a premier choice for municipal desalination, large-scale industrial processes, and shipboard water production. It is specifically optimized for high salt rejection and superior boron removal, meeting stringent standards for potable and process water purity.
Constructed with a cross-linked fully aromatic polyamide composite, the TM820C-400 provides a stabilized salt rejection of 99.75%. This element features a 28-mil feed spacer that balances high-flow productivity with robust resistance to fouling. Designed for durability in extreme conditions, it maintains stable performance under high operating pressures up to 1,200 psi. While the TM820C-400 has been a mainstay in the industry, the manufacturer now recommends the TM820M-400 as the direct high-productivity replacement for new installations and retrofits.
Specifications Table
| Characteristic | Specification | Units / Notes |
| Model | TM820C-400 | Seawater RO (SWRO) |
| Membrane Type | Cross-linked Polyamide Composite | Boron Rejection Optimized |
| Element Dimensions (Nominal) | 8.0×40 | inches |
| Active Area | 400 (37) | sq ft (sq m) |
| Permeate Flow Rate (Nominal) | 6,500 (24.6) | GPD (m3/day). ±15% tolerance |
| Stabilized Salt Rejection | 99.75 | % (Minimum 99.5%) |
| Applied Pressure (Test) | 800 (55.2) | PSI (Bar) |
| Max Operating Pressure | 1,200 (83) | PSI (Bar) |
| Max Operating Temperature | 113 (45) | F (C) |
| Continuous pH Range | 2−11 | - |
| Typical Boron Rejection | 93 | % (at pH 8 / 5 mg/L feed) |
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Highest rejection in the marketplace. Stable performance and reliability.
| 8.0 inch seawater | |||||
| Model # | Flow | Rejection | Feed Spacer | Rated pressure | |
| TM820C-400 | 6500 | 99.75% | 34 | 800 psi(5.52MPa) | |
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