TMG20-440C

Summary

Product identification

This document describes the Toray TMG20-440C ultra-low pressure brackish water reverse osmosis (BWRO) membrane element.

Membrane Type

Cross Linked Fully Aromatic Polyamide Composite

Performance Specifications

Test Conditions:

• Feed Water Pressure: 110 psi (0.76 MPa)
• Feed Water Temperature: 77°F (25℃)
• Feed Water Concentration: 500 mg/l NaCl
• Recovery Rate: 15%
• Feed Water pH: 7

Nominal Performance (for TMG20-440C under test conditions):

• Product Flow Rate: 11,300 gpd (42.6 m³/d)
• Salt Rejection: 99.5%
• Membrane Area: 440 ft² (41 m²)
• Feed Spacer Thickness: 31 mil
• Diameter: 8”

Minimum Performance:

• Minimum Product Flow Rate (TMG20-440C): 9,000 gpd (34.1 m³/d)
• Minimum Salt Rejection: 99.0%

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

Dimensions are shown in Inches (millimeter):

• Overall Length: 40 (1,016)
• Outer Diameter: 7.9 (201)
• Permeate Tube Diameter: 1.125 (29)

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 operating limits may void the Limited Warranty.
• All elements are wet tested, treated with a 1% by weight sodium bisulfite storage solution, and then 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.
• For short-term storage, shipment, or system shutdown, it is recommended to immerse Toray elements in a protective solution containing 500 - 1,000 ppm of sodium bisulfite (food grade) dissolved in permeate to prevent biological growth.
• Free chlorine and other oxidizing agents, especially in the presence of heavy metals (which act as oxidation catalysts), can cause unexpected membrane oxidation. It is strongly recommended to remove these oxidizing agents from feed water before operating the RO system.
• 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.

Notice

• Toray accepts no responsibility for results obtained by the application of this information or the safety or suitability of Toray's products, either alone or in combination with other products. Users are advised to make their own tests to determine the safety and suitability of each product combination for their own purposes.
• All data may change without prior notice, due to technical modifications or production changes.

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

Official datasheet (PDF)

PDF datasheet