TMRO 4040HS

Summary

Toray’s Heat Sanitizable RO membrane elements provide superior permeate quality for hygienic purified water applications. These RO elements use a cross-linked fully aromatic polyamide composite membrane. They are designed for applications requiring hot water sanitization, eliminating sanitization by chemicals.

Product identification

• Model: TMRO 4040HS
• NaCl rejection: 99.5%
• Permeate flow rate: 1,975* GPD (7.5 m³/d)
  • *Target flow rate after heat conditioning
• Feed spacer thickness: 0.028 in. (0.71 mm)
• Active area: 85 ft² (7.9 m²)

Material Specifications

• Feed spacer & element outer wrap: Polyethylene
• Permeate tubes, Anti-telescoping device (ATD), inter-connectors: Polysulfone
• Permeate carrier: Proprietary
• Adhesives: Proprietary
• Heat-sanitizable elements (w/ ATD): Components conform to FDA Regulation CFR Title 21

Mechanical / hydraulic

Dimensions (TMRO 4040HS)

• Diameter (A): 4.0 in. (101 mm)
• Length (B): 40 in. (1,016 mm)
• Permeate Tube (C): 0.75 in. (19 mm) OD
• Concentrated Brine (D): 1.0 in. (26 mm)

Operating limits

• Maximum operating pressure: 600 psi (41.4 bar)
• Maximum sanitizing temperature: 185 °F (85 °C)
• Maximum operating temperature: 113 °F (45 °C)
• Maximum cleaning temperature: 122 °F (50 °C)
• Acceptable operating pH range: 2.0–11.0
• Acceptable short-term cleaning pH range: 1.7–11.5
• Maximum pressure drop per element: 15 psi (1.0 bar)
• Maximum pressure drop per vessel: 60 psi (4.1 bar)

Feed water

Test Conditions

• Feed water pressure: 150 psi (10.3 bar)
• Feed water temperature: 77 °F (25 °C)
• Feed water concentration: 2,000 mg/L as NaCl
• Recovery rate: 15%
• Feed water pH: 7

Oxidant Tolerance

• Chlorine tolerance (short-term cleaning at pH 11): Non-detect
• H₂O₂ continuous: 20 ppm*
• H₂O₂ short-term cleaning <77°F (25°C): 1,000 ppm*
  • *Free chlorine should not be present in feed.

Heat Sanitization

Toray HSRO-series elements are sanitized with hot water as the preferred method in food and pharmaceutical applications, eliminating the need for chemicals and other disposals. New Toray HSRO-series elements must be pre-conditioned prior to initial use by exposure to hot water. Conditioning water must be high-quality chlorine and oxidant-free, non-scaling, non-fouling water. RO permeate is preferred (water from an RO that has been in operation for at least 24 hours).

Conditioning procedure:

1. Flush water to drain with non-scaling water at low pressure, maintaining low permeate rates.
2. Recycle warm water 40–45°C at less than 25 psig (1.7 bar) trans-membrane pressure (TMP). The maximum differential pressure is 2 psi per element or 10 psi per vessel.
3. Introduce hot water to the circulating system to increase the temperature to 175–185°F (80–85°C).
4. Maintain this temperature and a TMP less than 25 psig (1.7 bar) for 80 minutes.
5. Allow the circulating system to cool to 113°F (45°C).
6. The maximum temperature increase or decrease is 2°C/minute.
7. Flush to drain with clean water maintaining a TMP of <25 psi and a maximum feed pressure of 45 psi (3 bar).

Factory pre-conditioned HSRO elements are available.

Applications

• Food & beverage
• Pharmaceutical (water for injection)
• Diafiltration
• Sugar concentration
• Flavor concentration
• Aroma concentration
• Wine de-alcoholization
• Beer de-alcoholization

Regulatory Information

Toray's membrane elements are certified under:

• ISO 9001:2015 QMS to ensure consistency in product and service quality; and
• ISO 14001:2015 EMS to enhance the environmental performance of products and services.

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Disclaimer: This summary is based on extracted text from a PDF datasheet and may not include all figures, footnotes, or the latest revisions. For contractual data, please refer to the official OEM PDF revision used on your project. Elements are preserved in sodium meta-bisulfite, and appropriate personal protective equipment should be worn when handling. Toray disclaims responsibility for results obtained by the application of this information. All data may change without prior notice.

Official datasheet (PDF)

PDF datasheet