SU-620

Summary

Product identification

• Model: SU-620
• Membrane Type: Cross Linked Polyamide Composite
• Element Configuration: Spiral Wound

Performance Specification

• NaCl Solution:
  • Salt Rejection: 55.0 % (45.0% minimum for any single element)
  • Product Flow Rate: 18.0 m³/day (4,760 gpd)
• MgSO₄ Solution:
  • Salt Rejection: 99.0 % (98.0% minimum)
  • Product Flow Rate: 16.0 m³/day (4,230 gpd) (14.0 m³/day (3,700 gpd) minimum for any single element)

Test Conditions:

• Pressure: 3.5 kg/cm² (50 psi)
• Temperature: 25 °C (77 °F)
• Feed Concentration: 500 ppm as NaCl or MgSO₄
• Brine Flow Rate: 80 l/min (21.1 gpm)
• Feed pH: 6.5
• Note: Average values are for 100 elements after 1 hour operation.

Operating limits

• Recommended Operating Pressure: < 10 kg/cm² (143 psi) (Maximum 15 kg/cm² (214 psi))
• Feedwater Temperature: < 35 °C (95 °F) (Maximum 45 °C (113 °F))
• Feedwater Turbidity (SDI₁₅): < 4
• Feedwater Chlorine Concentration: < 1 ppm
• pH Range, Continuous Operation: 3 - 8
• pH Range, Chemical Cleaning: 2 - 10
• Feed Flow Rate per Vessel: < 200 l/min (52.8 gpm)
• Brine Flow Rate per Vessel: > 40 l/min (10.6 gpm)
• Brine/Permeate Flow Ratio: > 6
• Pressure Drop (per Element): < 1 kg/cm² (14 psi)
• Pressure Drop (per Vessel): < 2 kg/cm² (29 psi)

Notes on operating limits:

• The recommended design range indicates safe operational and design conditions under not so much fouling and scaling. Operating outside this range may reduce effective membrane life.
• High flux operation on feedwater turbidity greater than 3 or 4 SDI₁₅ generally results in frequent cleaning requirements.
• Both feed and brine water must meet the continuous operation pH range.
• Product flow rate declines 25 - 30% when feedwater contains Chlorine.
• Element(s) must be cleaned when pressure drop increases to 1.5 times of the initial value.

Mechanical / hydraulic

All dimensions are shown in millimeters:

• 1016
• 201
• 32
• 22
• 11

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