SW11-4021

SW series of sea water aromatic polyamide RO element developed by VONTRON for seawater desalination. This series of elements have the characteristics of low operating pressure, low equipment investment, good desalination performance and stability.
 
SW series membrane elements are generally suitable for the treatment of seawater and brackish water with high concentration. It can be used for seawater desalination, desalination of brackish water with high concentration, boiler replenishment water in power plants, wastewater reuse, concentration and recovery of high value-added substances such as food and pharmaceuticals, etc.
 
 
Model: SW11-4021
Active Membrane Area ft2(m2)：33(3.1)
Permeate Flow Rate GPD (m3/d): 750(2.8)
Stabilized Rejection Rate (%): 99.5
 
Testing Position
Operating Pressure at 800 psi (5.52MPa)
Temperature at 25℃
Tested in 32000 mg/L NaCL solution
pH 8
Recovery rate at 4%
 
Operating Limit & Conditions
Maximum operating pressure: 1200psi（8.28MPa)
Maximum feedwater flow: 16gpm（3.6 m3/h）
Maximum feedwater temperature: 45℃
Maximum feedwater flow SDI15: 5
Allowed pH range for feedwater in operation: 2～11
Allowed pH range for chemical cleaning: 1～13
Maximum concentration of free chlorine: ＜0.1ppm
Maximum pressure drop per element: 10psi（0.7MPa）