Datasheet summary
TM700D
Engineering summary from PDF text extraction for TM700D. Verify every value with the OEM datasheet.
Summary
Product Identification
The TM700D Series comprises high-rejection brackish water reverse osmosis membrane elements with enhanced chemical tolerance. Toray's membrane technology utilizes cross-linked fully aromatic polyamide composite membranes for high-quality permeate and robust membrane chemistry. Manufacturing is under ISO 9001 for consistent quality.
Applications:
- Municipal drinking water
- Industrial process water
- Water reuse
Products manufactured at Toray's U.S. facility (TMUS) are certified to NSF/ANSI 61 for drinking water applications.
Product Specifications
| Unit | TM710D | TM720D-400 | TM720D-440 |
|---|---|---|---|
| Size | 4040 | 8040 | 8040 |
| Membrane Area | 87 ft² (8 m²) | 400 ft² (37 m²) | 440 ft² (41 m²) |
| Nominal Salt Rejection | 99.8% | 99.8% | 99.8% |
| Minimum Salt Rejection | 99.65% | 99.65% | 99.65% |
| Product Flow Rate | 2,600 gpd (9.8 m³/d) | 11,000 gpd (41.6 m³/d) | 12,100 gpd (45.8 m³/d) |
| Minimum Product Flow Rate | 2,150 gpd (8.2 m³/d) | 8,900 gpd (33.6 m³/d) | 9,800 gpd (37.0 m³/d) |
| Feed spacer thickness | 34 mil | 34 mil | 28 mil |
Test Conditions:
- Feed water pressure: 225 psi (1.55 MPa)
- Feed water temperature: 77 °F (25°C)
- Feed water concentration: 2,000 mg/L as NaCl
- Recovery rate: 15%
- Feed water pH: 7
Mechanical / Hydraulic
Dimensions in. (mm)
| Size | A | B | C | D |
|---|---|---|---|---|
| 4040 | 4.0 (101) | 40 (1,016) | 0.75 (19) | 1.05 (26) |
| 8040 | 7.9 (201) | 40 (1,016) | 1.125 (29) | — |
Operating Limits
- Maximum operating pressure⁶: 600 psi (4.1 MPa)
- Maximum feed water temperature: 113 °F (45°C)
- Maximum feed water SDI₁₅: 5
- Feed water chlorine concentration: < 0.1 ppm
- Feed water pH range:
- Continuous operation: 2–11
- Chemical cleaning: 1–13
- Maximum pressure drop per element: 15 psi (0.10 MPa)
- Maximum pressure drop per vessel: 50 psi (0.34 MPa)
Notes on Operating Limits:
- Consult the latest Toray technical bulletin, design guidelines, computer design program, or an application specialist for the recommended design range. Not strictly following the operating limits will void the Limited Warranty.
- RO elements are wet tested and treated with a 1 percent by weight sodium bisulfite storage solution. They are then vacuum packed in oxygen barrier bags or treated with a tested feed water solution and vacuum sealed with deoxidant inside.
- Toray recommends flushing RO elements for 30 to 60 minutes once every two days with sufficient quality flushing water (such as pre-treated feed water) to prevent biological growth during system shutdown. Refer to the Toray RO Handling Manual.
- The presence of free chlorine and other oxidizing agents, especially with heavy metals as oxidation catalysts, can cause unexpected oxidation of the membrane. Toray strongly recommends removing these oxidizing agents from feed water before operating the RO system.
- Permeate from the first hour of operation shall be discarded.
- The customer is fully responsible for the effects of chemicals that are incompatible with the elements. Their use will void the element Limited Warranty.
- Maximum operating pressure will vary depending on feed temperature.
Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions of the OEM PDF datasheet. For contractual data, please refer to the specific OEM PDF revision used on the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.