Datasheet summary
TM720-400
Engineering summary from PDF text extraction for TM720-400. Verify every value with the OEM datasheet.
Summary
Product Identification
These are Brackish Water Reverse Osmosis (RO) Elements from the TM700 series, featuring a Cross Linked Fully Aromatic Polyamide Composite membrane type.
Available models include:
- TM710
- TM720-370
- TM720-400
- TM720-430
- TM720-440
Test Conditions
Performance data is based on the following 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
Performance Specifications
Nominal Performance
All listed models (TM710, TM720-370, TM720-400, TM720-430, TM720-440) exhibit a nominal salt rejection of 99.7%.
| Type | Product Flow Rate gpd (m³/d) | Salt Rejection % | Membrane Area ft² (m²) |
|---|---|---|---|
| TM720-440 | 11,300 (42.6) | 99.7 | 440 (41) |
| TM720-430 | 11,000 (41.6) | 99.7 | 430 (40) |
| TM720-400 | 10,200 (38.6) | 99.7 | 400 (37) |
| TM720-370 | 9,500 (36.0) | 99.7 | 370 (34) |
| TM710 | 2,400 (9.1) | 99.7 | 87 (8) |
Minimum Performance
- Minimum Salt Rejection: 99.0%
- Minimum Product Flow Rate:
- TM710: 2,000 gpd (7.6 m³/d)
- TM720-370: 7,500 gpd (28.4 m³/d)
- TM720-400: 8,200 gpd (31.0 m³/d)
- TM720-430: 8,800 gpd (33.3 m³/d)
- TM720-440: 9,000 gpd (34.1 m³/d)
Operating Limits
- Maximum Operating Pressure: 600 psi (4.1 MPa)
- Maximum Feed Water Temperature: 113°F (45°C)
- 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
All dimensions are shown in Inches (millimeter).
Element Dimensions
- Length (all models): 40 (1,016)
- Diameter:
- TM710: 4 (101)
- TM720-370, TM720-400, TM720-430, TM720-440: 7.9 (201)
- Permeate Tube Diameter:
- TM710: 1.05 (26)
- TM720-370, TM720-400, TM720-430, TM720-440: 1.125 (29)
Feed Spacer Thickness
- TM710: 28 mil
- TM720-370: 31 mil
- TM720-400: 31 mil
- TM720-430: 31 mil
- TM720-440: 31 mil
Operating Information & Storage
All elements are wet tested. They are then treated with either a 1% by weight sodium bisulfite storage solution and vacuum packed in oxygen barrier bags, or treated with tested feed water solution and vacuum packed in oxygen barrier bags with deoxidant inside. For short-term storage, shipment, or system shutdown, it is recommended that elements be immersed in a protective solution containing 500 - 1,000 ppm of sodium bisulfite (food grade) dissolved in permeate. Permeate from the first hour of operation shall be discarded.
Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the most recent revisions found in the official PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your 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.