CSM RE4040-BLN

Summary

Product Identification

The RE4040-BLN is a low-pressure grade reverse osmosis (RO) element designed for brackish water applications. It features low-energy consumption.

Test Conditions

Performance is tested under the following conditions:

• NaCl solution concentration: 1,500 mg/L
• Applied pressure: 150 psig (1.03 MPa)
• Recovery: 15%
• Temperature: 77°F (25°C)
• pH: 6.5–7.0
• Permeate flow rate for each element may vary +25 / -15%.

General Features

• Permeate Flow Rate: 2,600 GPD (9.8 m³/day)
• Nominal Salt Rejection: 99.4% (Minimum 99.3%)
• Effective Membrane Area: 85 ft² (7.9 m²)
• Membrane Type: Thin-Film Composite
• Membrane Material: Polyamide (PA)
• Element Configuration: Spiral-Wound, FRP Wrapping

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°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): 5.0
• Max. Chlorine Concentration: < 0.1 mg/L

Application Data

This product is suitable for:

• Industrial
• Municipal
• Semiconductor applications

Mechanical / Hydraulic

• Model Name: RE4040-BLN
• Dimensions:
  • A (Length): 40.0 inch (1,016 mm)
  • B (Diameter): 3.9 inch (99 mm)
  • C (Permeate tube ID): 0.75 inch (19 mm)
  • D/E (Permeate tube OD): 1.05 inch (26.7 mm)
• Part Number (Inter-Connector): SWA01050
• Part Number (Brine Seal): SWA01046
• Each membrane element is supplied with one interconnector (coupler) and four O-rings.
• All RE4040 elements fit nominal 4.0 inch (101.6 mm) I.D. pressure vessels.

General Handling Procedures

• Elements must be kept dry at room temperature (7–32°C; 40–95°F) and should not be stored in direct sunlight.
• For WET-TYPE elements, a preservative solution (1% sodium metabisulfite solution) is added to prohibit microorganism growth.
• 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, as use of incompatible chemicals may void the 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's limited warranty.
• The element shell is FRP (Fiber Reinforced Plastic). Be aware of glass fiber strands and use safety equipment.

Certification

• Certified to NSF/ANSI/CAN 61.

---

Disclaimer: This summary is based on the provided text extract. The original OEM PDF datasheet may contain additional figures, footnotes, or more recent revisions. For contractual purposes, data must match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet