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CSM NE4040-90 Normal Grade Nanofiltration Element with High Monovalent Ion Rejection, 4" x 40"
Nanofiltration membranes allow for different rejections: monovalent and divalent. It is possible to permeate selectively due to this feature. The main applications are PR solutions, dyes, special chemicals, expensive raw material recovery and pretreatment for removing parts of monovalents: Tone-ions and rejecting divalent Tone-ions in seawater processes.
- Each membrane element supplied with one brine seal, one interconnector (coupler) and four o-rings.
- All NE4040 elements fit nominal 4.0 inch (102 mm) I.D. pressure vessels.
General Features:
- Permeate flow rate: 1,700 GPD (6.4 m3/day)
- Monovalent ion rejection (NaCl): 90.0 – 97.0%
- Divalent ion rejection (CaCl2): 85.0 – 97.0%
- Effective membrane area: 85 ft2 (7.9 m2)
*See NE4040-90 Spec Sheet for test conditions
General Specifications:
| Permeate Flow Rate (GPD, m3/d) | NaCl Rejection (%) | MgSO4
Rejection (%) | Diameter / Length (inch) | Test Conditions | | 1,700 (6.0) | 85-95 | 97 | 4.0 / 40 | NE Standard |
• NE Standard test conditions: NaCl 2,000 mg/L, Pressure 75 psig, Temperature 25°C, pH 6.5-7.0 Recovery 15% • MgSO4 rejection test conditions: MgSO4 2,000 mg/L, Pressure 75 psig, Temperature 25°C, pH 6.5-7.0 Recovery 15% • The stated data were obtained after 30 minutes of operation
Operating Limits:
| Max. Pressure Drop / Element | 15 psi (0.1 MPa) | | Max. Pressure Drop / 240" Vessel | 60 psi (0.41 MPa) | | Max. Operating Pressure | 600 psi (4.14 MPa) | | Max. Feed Flow Rate | 18 gpm (4.09 m3/hr) | | Min. Concentrate Flow Rate | 4 gpm (0.91 m3/hr) | | Max. Operating Temperature | 113°F (45°C) | | Operating pH Range | 2.0 - 11.0 | | CIP pH Range | 1.0 - 13.0 | | Max. Turbidity | 1.0 NTU | | Max. SDI (15 min.) | 5 | | Max. Chlorine Concentration | < 0.1 mg/L |
General Specifications:
| Permeate Flow Rate (GPD, m3/d) | NaCl Rejection (%) | MgSO4
Rejection (%) | Diameter / Length (inch) | Test Conditions | | 1,700 (6.0) | 85-95 | 97 | 4.0 / 40 | NE Standard |
• NE Standard test conditions: NaCl 2,000 mg/L, Pressure 75 psig, Temperature 25°C, pH 6.5-7.0 Recovery 15% • MgSO4 rejection test conditions: MgSO4 2,000 mg/L, Pressure 75 psig, Temperature 25°C, pH 6.5-7.0 Recovery 15% • The stated data were obtained after 30 minutes of operation
Operating Limits:| Max. Pressure Drop / Element | 15 psi (0.1 MPa) | | Max. Pressure Drop / 240" Vessel | 60 psi (0.41 MPa) | | Max. Operating Pressure | 600 psi (4.14 MPa) | | Max. Feed Flow Rate | 18 gpm (4.09 m3/hr) | | Min. Concentrate Flow Rate | 4 gpm (0.91 m3/hr) | | Max. Operating Temperature | 113°F (45°C) | | Operating pH Range | 2.0 - 11.0 | | CIP pH Range | 1.0 - 13.0 | | Max. Turbidity | 1.0 NTU | | Max. SDI (15 min.) | 5 | | Max. Chlorine Concentration | < 0.1 mg/L |
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