Toray TML20D-400 Low-Fouling Reverse Osmosis Membrane Element
Toray's reverse osmosis elements use cross-linked fully aromatic polyamide composite membrane, manufactured under ISO 9001 for consistent quality and long membrane life. The TML20D-400 is built for reliable performance in high-fouling, wastewater-reuse and challenging feed water.
📄 Download the Toray Product Datasheet (PDF)
Performance Specifications
| Specification | Value |
|---|---|
| Manufacturer | Toray Industries |
| Series | TML(D) Series |
| Element Size | 8040 |
| Membrane Type | Cross-linked fully aromatic polyamide composite |
| Active Membrane Area | 400 ft² (37 m²) |
| Nominal Salt Rejection | 99.8% |
| Minimum Salt Rejection | 99.65% |
| Product Flow Rate | 10,500 gpd (39.7 m³/d) |
| Minimum Product Flow | 8,400 gpd (31.8 m³/d) |
| Feed Spacer | 34 mil |
Operating & Limiting Conditions
| Parameter | Limit |
|---|---|
| Maximum Operating Pressure | 600 psi (4.1 MPa) |
| Maximum Feed Temperature | 113 °F (45°C) |
| Maximum Feed Water SDI | 5 |
| Free Chlorine Tolerance | < 0.1 ppm |
| pH Range — Continuous | 2–11 |
| pH Range — Cleaning | 1–13 |
| Max Pressure Drop / Element | 15 psi (0.10 MPa) |
| Max Pressure Drop / Vessel | 50 psi (0.34 MPa) |
Physical Dimensions
| Dimension | Value |
|---|---|
| Overall Length | 40 in. (1,016 mm) |
| Diameter | 7.9 in. (201 mm) |
| Permeate Tube | 1.125 in. (29 mm) |
| Fits Pressure Vessel | nominal 8-inch I.D. |
Performance based on Toray standard 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. Individual element flow may vary. Reference: official Toray (water.toray) Product Data Sheet.
Typical Applications
- Feed water sources with high fouling tendency
- Municipal drinking water
- Industrial process water
- Water reuse
- Wastewater reclamation and reuse
- High-fouling / high-organic feed water
- Municipal tertiary treatment
Frequently Asked Questions
What is the Toray TML20D-400?
A 8040 low-fouling reverse osmosis membrane element from Toray Industries, producing up to 10,500 gpd (39.7 m³/d) at 99.8% nominal salt rejection.
What is the product flow rate?
Up to 10,500 gpd (39.7 m³/d) at Toray standard 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).
What salt rejection does it achieve?
99.8% nominal, 99.65% minimum.
What pressure vessel does it fit?
A nominal 8-inch I.D. RO pressure vessel.
What is the price of the TML20D-400?
Contact ForeverPure at 408-969-2688 or sales@foreverpureplace.com for current pricing and availability.
