Round Shaped Membrane Cushions
ROCHEM is producing ROUND SHAPED MEMBRANE CUSHIONS. The round shape design results into 5% surface increase compared to octagonal shaped sheets with the same diameter as a result of the geometric difference.
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| Membrane Area comparison between Round Shaped Rochem PF RO-Membrane Cushions ( Left ) and former Octagonal Shaped Cushions for ( Right ) the use in older type Disk Tube RO-Modules | |
 Round Shaped Membrane Cushions |  Octagonal Shaped Cushions |
 Blue area indicates the extra membrane surface of round shaped membrane cushions compared to octagonal sheets at the same diameter | |
The round shape design results into 5% surface increase | |
| The membrane cushion is made up with a permeate carrier, this permeate carrier is sandwiched between two membrane sheets.The outer diameter is sealed by ultrasonic welding of the three or more permeate carrieres together. The centre hole allows the permeate to flow into the permeate flow channels. |  |
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Key words: membrane cushions, rochem membrane, new membrane, ro membrane, rochem technology
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