TM820E-400

Summary

Product Identification

• Product Name: TM820E-400 Sea Water RO Element
• Membrane Type: Cross Linked Fully Aromatic Polyamide Composite

Performance Specifications

The following performance is based on specific test conditions and applies to the TM820E-400 element:

• Nominal Product Flow Rate: 7,500 gpd (28.3 m³/d)
• Nominal Salt Rejection: 99.75%
• Membrane Area: 400 ft² (37 m²)

Test Conditions:

• Feed Water Pressure: 800 psi (5.52 MPa)
• Feed Water Temperature: 77°F (25℃)
• Feed Water Concentration: 32,000 mg/l NaCl
• Recovery Rate: 8%
• Feed Water pH: 8
• Minimum Product Flow Rate: 6,000 gpd (22.7 m³/d)
• Minimum Salt Rejection: 99.5%
• Boron Rejection (typical value): 91% at pH 8 (5 mg/l Boron added to Feed water)

Operating Limits

• Maximum Operating Pressure: 1200 psi (8.3 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: 1-13
• 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).

• Nominal Element Diameter: 8 inches
• Nominal Element Length: 40 inches (1,016 mm)
• Element Body Diameter: 7.9 inches (201 mm)
• Permeate Tube Diameter: 1.125 inches (29 mm)
• Feed Spacer Thickness: 28 mil

Important Operating Considerations

• Consult the latest Toray technical bulletin, design guidelines, or an application specialist for recommended design ranges.
• Failure to strictly follow the operating limits will void the Limited Warranty.
• Elements are wet tested, treated with a tested feed water solution, and vacuum packed in oxygen barrier bags with deoxidant.
• To prevent biological growth during system shutdown, flush Toray elements with seawater for 30-60 minutes every two days.
• Remove free chlorine and other oxidizing agents (especially in the presence of heavy metals as oxidation catalysts) from feed water before operating the RO system to prevent unexpected membrane oxidation.
• 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 the provided text extract. It may not include all figures, footnotes, or the latest revisions found in the official PDF datasheet. For contractual purposes, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet