XUS180808

Summary

Product Identification

• Product Name: DOW™ XUS180808 Reverse Osmosis Element
• Product Type: Spiral-wound element with polyamide thin-film composite membrane
• Description: An ultra-high pressure, high-rejection reverse osmosis element designed for industrial water purification.
• Features:
  • Up to 120 bar (1,740 psi) ultra-high feed pressure capability due to special element and membrane design.
  • Increases the overall efficiency of Zero-Liquid-Discharge (ZLD) systems by achieving highest solute concentrations, thus reducing the size of downstream thermal treatment.
  • Excellent for recovery of salts in process streams.
  • Robust DOW FILMTEC™ reverse osmosis (RO) membrane sheet.
  • 34 mil feed spacer to lessen the impact of fouling on the pressure drop across a vessel and to enhance cleaning effectiveness.

Product Water

• Active Area: 285 ft² (27 m²)
• Feed Spacer Thickness: 34 mil
• Typical Permeate Flow Rate: 6,400 GPD (24.2 m³/d)
• Stabilized Salt (NaCl) Rejection: 99.7%
• Minimum Salt (NaCl) Rejection: 99.5%
• Performance ratings based on standard test conditions: 32,000 ppm NaCl, 800 psi (55 bar), 77° F (25° C), pH 8, 8% recovery.
• Flow rates for individual elements may vary but will be no more than ± 15%.

Mechanical / Hydraulic

• Element Dimensions:
  • Length (A): 40.0 in (1,016 mm)
  • ID (B): 1.125 ID (29 ID)
  • Outer Diameter (C): 7.9 in (201 mm)
• Element designed to fit a nominal 8-inch (203-mm) I.D. pressure vessel.

Operating Limits

• Maximum Operating Temperature: 113° F (45° C)
• Maximum Operating Pressure at 30° C: 1,740 psig (120 bar)
• Maximum Element Pressure Drop: 15 psig (1.0 bar)
• pH Range, Continuous Operation: 2 – 11 (Maximum temperature for continuous operation above pH 10 is 95°F / 35°C).
• pH Range, Short-Term Cleaning (30 min.): 1 – 13
• Maximum Feed Silt Density Index (SDI): SDI 5
• Free Chlorine Tolerance: < 0.1 ppm (Under certain conditions, the presence of free chlorine and other oxidizing agents will cause premature membrane failure; removal of residual free chlorine by pretreatment is recommended).

Maximum Allowed Feed Pressure vs. Temperature

Regulatory & Important Notices

• These membranes may be subject to drinking water application restrictions in some countries; check the application status before use and sale.
• The use of this product in and of itself does not necessarily guarantee the removal of cysts and pathogens from water. Effective cyst and pathogen reduction is dependent on the complete system design and on the operation and maintenance of the system.

Disclaimer

This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. For contractual data, always refer to the official OEM PDF datasheet revision used on your project.

Official datasheet (PDF)

PDF datasheet