Sea Water RO Membrane

Waterfiltec sea water RO Membrane is a high productivity seawater reverse osmosis element that offers the lowest energy consumption in the industry for optimal economics in two-pass sea water desalination systems. In addition, this element is well suited for high salinity brackish water applications.

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Operating Limits

Typical Operating Pressure	750 – 950 psi (5,175 – 6,555 kPa)
Maximum Operating Pressure	1,200 psi (8,275 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

Remarks

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.

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