Datasheet summary
TM820L-440
Engineering summary from PDF text extraction for TM820L-440. Verify every value with the OEM datasheet.
Summary
Product identification
These are Sea Water RO Elements, Type TM800L. The membrane type is Cross Linked Fully Aromatic Polyamide Composite.
Models covered:
- TM820L-440
- TM820L-400
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: 1-12
- Maximum Pressure Drop per Element: 20 psi (0.14 MPa)
- Maximum Pressure Drop per Vessel: 60 psi (0.4 MPa)
Test conditions
Parameters used for determining performance:
- 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
- Boron added to Feed water: 5 mg/l
Product water
- Minimum Salt Rejection (typical value): 99.5%
- Boron Rejection: 92% at pH 8 (with 5 mg/l Boron added to Feed water)
Model-specific performance
| Type | Product Flow Rate gpd (m³/d) | Salt Rejection % | Membrane Area ft² (m²) |
|---|---|---|---|
| TM820L-440 | 13,500 (51.1) | 99.8 | 440 (41) |
| TM820L-400 | 12,200 (46.2) | 99.8 | 400 (37) |
- Minimum Product Flow Rate:
- TM820L-400: 10,400 gpd (39.4 m³/d)
- TM820L-440: 11,500 gpd (43.5 m³/d)
Mechanical / hydraulic
-
Diameter: 8”
-
Dimensions (approximate, from diagram):
- Length: 40 inches (1,016 mm)
- Element diameter: 7.9 inches (201 mm)
- Permeate tube diameter: 1.125 inches (29 mm)
-
Feed Spacer Thickness:
- TM820L-400: 28 mil
- TM820L-440: 34 / 28 mil
Operating information
- For recommended design ranges, consult the latest Toray technical bulletin, design guidelines, computer design programs, and/or an application specialist. Not strictly following operating limits voids the Limited Warranty.
- Elements are wet tested, treated with 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 once every two days.
- The presence of free chlorine and other oxidizing agents (e.g., heavy metals acting as oxidation catalysts) in feed water can cause unexpected membrane oxidation. It is strongly recommended to remove these agents before operating the RO system.
- Permeate from the first hour of operation shall be discarded.
- Customers are fully responsible for the effects of chemicals incompatible with the elements; their use will void the Limited Warranty.
Notice
- Toray is not responsible for results obtained from the application of this information or the safety/suitability of their products alone or in combination with other products. Users should perform their own tests for safety and suitability.
- All data is subject to change without prior notice due to technical modifications or production changes.
- This model is applicable only to selected projects.
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)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.