An 8-inch nanofiltration element designed for selective ion rejection, with high divalent-ion rejection and moderate monovalent-ion rejection.
The Toray NE8040-70 is an 8-inch nanofiltration membrane element designed for selective ion rejection, combining high divalent-ion rejection with moderate monovalent-ion rejection.
Under the published test conditions, the NE8040-70 provides a nominal permeate flow of 9,000 GPD (34.1 m³/day), 99.0% MgSO4 rejection and 30-70% NaCl rejection. CFS can help review feedwater conditions, treatment goals and system requirements before selection.
Product Highlights
- 8-inch by 40-inch spiral-wound nanofiltration element
- Thin-film composite polyamide membrane
- High COD rejection
- Moderate rejection of monovalent ions
- FRP-wrapped construction
- Certified to NSF/ANSI/CAN 61
Typical Applications
- Food applications
- Municipal water treatment
- Water reuse
Published Performance
| Nominal permeate flow | 9,000 GPD (34.1 m³/day) |
|---|---|
| MgSO4 rejection | 99.0% (98.0% minimum) |
| NaCl rejection | 30-70% |
| Effective membrane area | 400 ft² (37.2 m²) |
| Membrane type | Thin-film composite |
| Membrane material | Polyamide (PA) |
| Element configuration | Spiral-wound, FRP wrapping |
Published test conditions: 2,000 mg/L MgSO4 or NaCl solution at 75 psig (0.52 MPa) applied pressure, 15% recovery, 77°F (25°C) and pH 6.5-7.0. Permeate flow for an individual element may vary by +25% / -25%.
Dimensions and Components
| Length | 40.0 in. (1,016 mm) |
|---|---|
| Element diameter | 7.9 in. (200 mm) |
| Permeate tube dimension | 1.125 in. (28.6 mm) |
| Weight | 15 kg (33.1 lb) |
| Nominal pressure vessel fit | 8.0 in. (203.2 mm) I.D. |
| Interconnector part number | SWA01049 |
| Brine seal part number | SWA01043 |
| Included components | One interconnector (coupler) and four O-rings |
Operating Limits
| Maximum pressure drop per element | 15 psi (0.10 MPa) |
|---|---|
| Maximum pressure drop per 240-inch vessel | 60 psi (0.41 MPa) |
| Maximum operating pressure | 600 psi (4.14 MPa) |
| Maximum feed flow rate | 75 gpm (17.0 m³/hr) |
| Minimum concentrate flow rate | 16 gpm (3.6 m³/hr) |
| Maximum operating temperature | 113°F (45°C) |
| Operating pH range | 3.0-10.0 |
| CIP pH range | 2.0-11.0 |
| Maximum turbidity | 1.0 NTU |
| Maximum SDI (15 minutes) | 5.0 |
| Maximum chlorine concentration | <0.1 mg/L |
Selection Support
Nanofiltration performance depends on feedwater chemistry, temperature, pressure, recovery and pretreatment. Contact CFS to review the application and confirm that the NE8040-70 is a suitable match for your treatment goals and system design.
Frequently Asked Questions
What is the Toray NE8040-70?
The NE8040-70 is an 8-inch by 40-inch spiral-wound nanofiltration membrane element with a thin-film composite polyamide membrane and FRP-wrapped construction.
What is the published flow rate for the NE8040-70?
The published nominal permeate flow is 9,000 GPD (34.1 m³/day) under the stated manufacturer test conditions.
What rejection performance is published for the NE8040-70?
The published performance is 99.0% MgSO4 rejection, with a 98.0% minimum, and 30-70% NaCl rejection under the stated test conditions.
What applications are listed for the NE8040-70?
Typical applications include food processing, municipal water treatment and water reuse.
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Toray NE8040-70 Nanofiltration Membrane Element
