|Typical Operating Pressure||150 – 250 psi (1,035 – 1,725 kPa)|
|Maximum Operating Pressure||600 psi (4,140 kPa)|
|Maximum Operating Temperature||113°F (45°C)|
|Maximum Cleaning Temperature||113°F (45°C)|
|Maximum Continuous Free Chlorine||<0.1 mg/l|
|Allowable pH – Continuous Operation||4 – 11|
|Allowable pH – Short Term Cleaning||2.5 – 11|
|Maximum Differential Pressure Per Element||10 psi (69 kPa)|
|Maximum Differential Pressure Per Vessel||60 psi (414 kPa)|
|Maximum Feed Turbidity||1 NTU|
|Maximum Feed SDI (15 minute test)||5|
|Maximum Number Of Tape Wrap Elements Per Vessel||3|
Proper start-up of reverse osmosis water treatment systems is essential to prepare the membranes for operating service and to prevent membrane damage due to overfeeding or hydraulic shock. Following the proper start-up sequence also helps ensure that system operating parameters conform to design specifications so that system water quality and productivity goals can be achieved.
Before initiating system start-up procedures, membrane pretreatment, loading of the membrane elements, instrument calibration and other system checks should be completed.