TMH20A-400

Summary

Product identification

These are Super Ultra Low Pressure Brackish Water RO Elements.

Membrane Type Cross Linked Fully Aromatic Polyamide Composite

Test Conditions

The performance specifications are based on the following test conditions:

• Feed Water Pressure: 100 psi (0.69 MPa)
• Feed Water Temperature: 77°F (25℃)
• Feed Water Concentration: 500 mg/l NaCl
• Recovery Rate: 15%
• Feed Water pH: 7

Product Water

Minimum Performance

• Minimum Salt Rejection: 99.0%
• Minimum Product Flow Rate:
  • TMH10A: 1,900 gpd (7.2 m³/d)
  • TMH20A-370: 8,200 gpd (30.9 m³/d)
  • TMH20A-400: 8,800 gpd (33.3 m³/d)
  • TMH20A-430: 9,500 gpd (35.9 m³/d)
  • TMH20A-440: 9,700 gpd (36.7 m³/d)

Specified Performance

• TMH20A-440:
  • Product Flow Rate: 12,100 gpd (45.7 m³/d)
  • Salt Rejection: 99.3%
  • Membrane Area: 440 ft² (41 m²)
  • Diameter: 8”
• TMH20A-430:
  • Product Flow Rate: 11,800 gpd (44.7 m³/d)
  • Salt Rejection: 99.3%
  • Membrane Area: 430 ft² (40 m²)
  • Diameter: 8”
• TMH20A-400:
  • Product Flow Rate: 11,000 gpd (41.6 m³/d)
  • Salt Rejection: 99.3%
  • Membrane Area: 400 ft² (37 m²)
  • Diameter: 8”
• TMH20A-370:
  • Product Flow Rate: 10,200 gpd (38.6 m³/d)
  • Salt Rejection: 99.3%
  • Membrane Area: 370 ft² (34 m²)
  • Diameter: 8”
• TMH10A:
  • Product Flow Rate: 2,400 gpd (9.1 m³/d)
  • Salt Rejection: 99.3%
  • Membrane Area: 87 ft² (8 m²)
  • Diameter: 4”

Operating limits

• Maximum Operating Pressure: 365 psi (2.5 MPa)
• Maximum Feed Water Temperature: 113°F (45℃)
• Maximum Feed Water SDI₁₅: 5
• Feed Water Chlorine Concentration: Not Detectable
• Feed Water pH Range, Continuous Operation: 2-11
• Feed Water pH Range, Chemical Cleaning: 1-12
• Maximum Pressure Drop per Element: 20 psi (0.14 MPa)
• Maximum Pressure Drop per Vessel: 60 psi (0.4 MPa)

Mechanical / hydraulic

All dimensions are shown in Inches (millimeter).

• TMH10A:
  • Approximate Length: 40 (1,016)
  • Approximate Diameter: 4 (101)
  • Permeate tube OD: 1.05 (26)
  • Permeate tube ID: 0.75 (19)
  • Feed Spacer Thickness: 28 mil
• TMH20A Series (370/400/430/440):
  • Approximate Length: 40 (1,016)
  • Approximate Diameter: 7.9 (201)
  • Permeate tube OD: 1.50 (38) for 370/400/430
  • Permeate tube OD: 1.125 (29) for 440
• Feed Spacer Thickness:
  • TMH20A-440: 31 mil
  • TMH20A-430: 34 mil
  • TMH20A-400: 28 mil
  • TMH20A-370: 28 mil

Operating Information

• For recommended design ranges, consult the latest Toray technical bulletin, design guidelines, computer design program, or an application specialist.
• Failure to strictly follow the operating limits given in the Product Information Bulletin will void the Limited Warranty.
• Elements are wet tested, treated with a 1% by weight sodium bisulfite storage solution, and vacuum packed in oxygen barrier bags. Alternatively, they may be treated with tested feed water solution and vacuum packed in oxygen barrier bags with deoxidant inside.
• To prevent biological growth during short-term storage, shipment, or system shutdown, it is recommended that Toray elements be immersed in a protective solution containing 500 - 1,000 ppm of sodium bisulfite (food grade) dissolved in permeate.
• Permeate from the first hour of operation shall be discarded.
• The customer is fully responsible for the effects of chemicals that are incompatible with the elements. Their use will void the element Limited Warranty.

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

Official datasheet (PDF)

PDF datasheet