Datasheet summary
SU-720LF
Engineering summary from PDF text extraction for SU-720LF. Verify every value with the OEM datasheet.
Summary
Product identification
The SU-720LF is a high flow and high membrane area reverse osmosis (RO) element.
- Membrane Type: Cross Linked Fully Aromatic Polyamide Composite
- Element Configuration: Spiral Wound
Performance Specification
Performance is specified under the following test conditions for a single element:
- Feed Water Pressure: 1.0 MPa (150 psi)
- Feed Water Temperature: 25 °C (77 °F)
- Feed Water Concentration: 1500 mg/L as NaCl
- Brine Flow Rate: 80 L/min. (21 gpm)
- Feed Water pH: 6.5
Under these conditions:
- Salt Rejection: 99.0 % (98.0 % minimum*)
- Product Flow Rate: 27 m³/day (7100 gpd) (24 m³/day (6340 gpd) minimum*)
- Note: *For any single element
Operating limits
Recommended design conditions for optimal membrane life:
- Recommended Feed Water Pressure: 1.5 MPa (220 psi)
- Maximum Feed Water Pressure: 4.1 MPa (600 psi)
- Recommended Feed Water Temperature: 35 °C (95 °F)
- Maximum Feed Water Temperature: 45 °C (113 °F)
- Recommended Feed Water Turbidity (SDI): 4 (measured according to ASTM D4189)
- Feed Water pH Range, Continuous Operation: 3 – 9
- Feed Water pH Range, Chemical Cleaning: 2 – 10
- Recommended Feed Flow Rate per Vessel: 200 L/min. (52 gpm)
- Recommended Brine Flow Rate per Vessel: 40 L/min. (11 gpm)
- Recommended Brine/Permeate Flow Ratio: 6 (at last element)
- Recommended Pressure Drop (per Element): 0.10 MPa (14 psi)
- Recommended Pressure Drop (per Vessel): 0.20 MPa (29 psi)
Note: Elements must be cleaned when pressure drop increases up to 1.5 times the initial value. Sterilization and cleaning chemicals must follow Toray's technical bulletins.
Mechanical / hydraulic
- Membrane Surface Area: Nominal 35 m² (380 ft²)
- Note: This is a nominal value and not a guaranteed specification.
- Dimensions: All dimensions are shown in millimeters. The length of the element is 1016 mm. (See the official PDF for exact tabulated values and diagrams.)
Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the OEM PDF. Contractual data must match the specific 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.