Datasheet summary
TM720D-400
Engineering summary from PDF text extraction for TM720D-400. Verify every value with the OEM datasheet.
Summary
Product Identification
These are High Rejection Brackish Water RO Elements featuring a Cross Linked Fully Aromatic Polyamide Composite membrane type.
Available models:
- TM720D-400
- TM720D-440
Nominal Performance
| Type | Product Flow Rate gpd (m³/d) | Feed Spacer Thickness mil | Salt Rejection % | Membrane Area ft² (m²) | Diameter Inch |
|---|---|---|---|---|---|
| TM720D-400 | 11,000 (41.6) | 34 | 99.8 | 400 (37) | 8” |
| TM720D-440 | 12,100 (45.8) | 28 | 99.8 | 440 (41) | 8” |
Test Conditions
Performance data is based on the following standard test conditions:
- Feed Water Pressure: 225 psi (1.55 MPa)
- Feed Water Temperature: 77°F (25℃)
- Feed Water Concentration: 2,000 mg/l NaCl
- Recovery Rate: 15%
- Feed Water pH: 7
- Minimum Salt Rejection: 99.65%
- Minimum Product Flow Rate:
- TM720D-400: 8,900 gpd (33.6 m³/d)
- TM7720D-440: 9,800 gpd (37.0 m³/d)
Operating Limits
- Maximum Operating Pressure: 600 psi (4.1 MPa)
- Maximum Feed Water Temperature: 113°F (45℃)
- Maximum Feed Water SDI₁₅: 5
- Feed Water Chlorine Concentration: <0.1 ppm
- Feed Water pH Range, Continuous Operation: 2-11
- Feed Water pH Range, Chemical Cleaning (30min.): 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).
- Length: 40 (1,016)
- Element Body Diameter: 7.9 (201)
- End Cap Extension: 1.125 (29)
Operating Information
- For recommended design ranges, consult the latest technical bulletin, design guidelines, computer design program, or an application specialist.
- All elements are wet tested and treated with a 1% by weight percent sodium bisulfite storage solution and vacuum packed, or treated with tested feed water solution and vacuum packed with a deoxidant.
- For short-term storage, shipment, or system shutdown, elements should be immersed in a protective solution of 500 - 1,000 ppm of sodium bisulfite (food grade) dissolved in permeate.
- Free chlorine and other oxidizing agents, especially in the presence of heavy metals as oxidation catalysts, will cause unexpected membrane oxidation. It is strongly recommended to remove these oxidizing agents from feed water before RO system operation.
- Permeate from the first hour of operation shall be discarded.
- The customer is fully responsible for the effects of chemicals incompatible with the elements; their use will void the Limited Warranty.
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.