CSM NE4040-70

Summary

Product identification

The AquaChain NE4040-70 is an NF element designed for medium monovalent ion rejection. It is certified to NSF/ANSI/CAN 61.

General Features

• Permeate Flow Rate: 1,900 GPD (7.2 m³/day)
• MgSO₄ Rejection: 99.0% (Minimum 98.0%)
• NaCl Rejection: 30 – 70%
• Effective Membrane Area: 85 ft² (7.9 m²)
• Membrane Type: Thin-Film Composite
• Membrane Material: Polyamide (PA)
• Element Configuration: Spiral-Wound, FRP Wrapping
• Key properties: High COD Rejection, Moderate Rejection of Monovalent Ion.

Test Conditions (for stated performance):

• 2,000 mg/L MgSO₄ or NaCl solution
• 75 psig (0.52 MPa) applied pressure
• 15% recovery
• 77℉ (25℃)
• pH 6.5–7.0
• Permeate flow rate for each element may vary +25 / -25%.

Operating limits

• Max. Pressure Drop / Element: 15 psi (0.10 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℉ (45℃)
• Operating pH Range: 3.0 – 10.0
• CIP pH Range: 1.0 – 11.5
• Max. Turbidity: 1.0 NTU
• Max. SDI (15 min): 5.0
• Max. Chlorine Concentration: < 0.1 mg/L

Mechanical / hydraulic

All NE4040 elements fit nominal 4.0 inch (101.6 mm) I.D. pressure vessels. The element shell is made of FRP (Fiber Reinforced Plastic).

Dimensions:

• A: 40.0 inch (1,016 mm)
• B: 3.9 inch (99.0 mm)
• C: 0.75 inch (19.1 mm)
• D/E: 1.05 inch (26.7 mm)

Included Components:

• Each membrane element is supplied with one interconnector (coupler) (Part Number SWA01050) and four O-rings.
• Brine Seal: Part Number SWA01046

General Handling Procedures

• Elements must be kept dry at room temperature (7–32°C; 40–95°F) and not stored in direct sunlight.
• Permeate from the first hour of operation should be discarded.
• Stabilized salt rejection is generally achieved within 1–48 hours of continuous use.
• Keep elements moist at all times after initial wetting.
• Avoid excessive pressure and flow spikes.
• Only use chemicals compatible with the membrane elements and components. Use of incompatible chemicals may void the element limited warranty.
• Permeate pressure must always be equal to or less than the feed/concentrate pressure. Damage caused by permeate back pressure voids the element limited warranty.
• Be aware of glass fiber strands from the FRP shell and use safety equipment.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet