TBW-440HR

Summary

Product identification

The TBW-HR Series comprises advanced Toray reverse osmosis (RO) elements designed for high rejection of neutral molecules like IPA and SiO₂ at low energy (0.75 MPa). This series offers significant advantages in ultrapure water production and water reuse. The specific product detailed is the TBW-440HR.

Test Conditions

Product specifications were determined under the following conditions:

• Feed water pressure: 110 psi (0.75 MPa)
• Feed water temperature: 77 °F (25 °C)
• Feed water concentration: 500 mg/L as NaCl
• Recovery rate: 15%
• Feed water pH: 7

Applications

• Ultrapure water production
• Industrial process water
• Municipal drinking water

Dimensions

The TBW-440HR element has the following nominal dimensions:

• A: 7.9 in (201 mm)
• B: 40 in (1,016 mm)
• C: 1.125 in (29 mm)

Product Specifications

For the TBW-440HR element:

• Membrane Area: 440 ft² (41 m²)
• Nominal Salt Rejection: 99.8%
• Minimum Salt Rejection: 99.5%
• IPA Rejection (reference): 95%
• SiO₂ Rejection (reference): 99.7%
• Product Flow Rate: 8,200 gpd (31 m³/d)
• Min. Product Flow Rate: 6,900 gpd (26 m³/d)
• Feed spacer thickness: 28 mil

Operating Limits

• Maximum operating pressure: 600 psi (4.1 MPa)
• Recommended process / operation pressure: < 2.0 MPa
• Maximum feed water temperature: 113 °F (45 °C)
• Maximum feed water SDI₁₅: 5
• Feed water chlorine concentration: < 0.1 ppm
• Feed water pH range:
  • Continuous operation: 2–11
  • Chemical cleaning: 1–13
• Maximum pressure drop per element: 15 psi (0.10 MPa)
• Maximum pressure drop per vessel: 50 psi (0.34 MPa)

Notes:

• The maximum operating pressure will vary depending on feed temperature.
• Flushing of RO elements is recommended for 30 to 60 minutes once every two days during system shutdown to prevent biological growth.
• The presence of free chlorine and other oxidizing agents (especially with heavy metal catalysts) can cause unexpected membrane oxidation; removing these agents from feed water is strongly recommended.
• Permeate from the first hour of operation should be discarded.
• The use of chemicals incompatible with the elements will void the Limited Warranty.

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Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions found in the complete OEM PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet