TM840M1760

Summary

Product Identification

• Model: TM840M-1760 (Seawater RO Element)
• Membrane Type: Cross Linked Fully Aromatic Polyamide Composite

Test Conditions

Performance data (unless otherwise specified) is based on the following conditions:

• Feed Water Pressure: 800 psi (5.52 MPa)
• Feed Water Temperature: 77°F (25°C)
• Feed Water Concentration: 32,000 mg/l NaCl
• Recovery Rate: 8%
• Feed Water pH: 8

Performance (Typical Values)

• Boron Rejection (typical value): 99.5% (with 5 mg/l Boron added to Feed water)

TM840M-1760

• Minimum Salt Rejection: 95% at pH 8
• Typical Product Flow Rate: 24,600 gpd (93 m³/d)
• Nominal Salt Rejection (from table): 99.8%
• Nominal Product Flow Rate (from table): 37,600 gpd (142 m³/d)
• Membrane Area: 1,760 ft² (164 m²)

TM840R-1760

• Minimum Salt Rejection: 95% at pH 8
• Typical Product Flow Rate: 30,100 gpd (114 m³/d)
• Nominal Salt Rejection (from table): 99.8%
• Nominal Product Flow Rate (from table): 39,600 gpd (150 m³/d)
• Membrane Area: 1,760 ft² (164 m²)

TM840V-1760

• Minimum Salt Rejection: 92% at pH 8
• Typical Product Flow Rate: 31,700 gpd (120 m³/d)
• Nominal Salt Rejection (from table): 99.8%
• Nominal Product Flow Rate (from table): 30,800 gpd (117 m³/d)
• Membrane Area: 1,760 ft² (164 m²)

Mechanical / Hydraulic

• Length: 40 inches (1,016 mm)
• Diameter: 16 inches
• Feed Spacer Thickness: 28 mil (for all models)

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)

Operating Information

• All elements are wet tested, treated with tested feed water solution, and then vacuum packed in oxygen barrier bags with deoxidant inside.
• To prevent biological growth during system shutdown, it is recommended to perform 30-60 minutes flushing of elements with seawater once in every two days.
• The presence of free chlorine and other oxidizing agents (e.g., heavy metals acting as oxidation catalysts) in the feed water will cause unexpected oxidation of the membrane. It is strongly recommended to remove these oxidizing agents 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.
• 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. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

PDF datasheet