 Library > Water Chemistry > R/O and DI Filtration > RO Units: Parts and Their Functions |
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RO Units: Parts and Their Functions |
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Page 6 of 9 |
Pages: 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8 . 9 |
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Photo 20: This is an inline "polishing" filter (OmnipureTM brand). It traps organic chemicals that make it through the membrane. It is fitted with John Guest fittings for ease of removal and replacement and the filter media is Granulated Activated Carbon. The flow direction is on the label.
Photo 21: Here, the polishing filter is attached to the membrane housing with the filter clips.
Photo 22: High quality polyethylene tubing is essential to the operation of the unit. This tubing is 1/4" outside diameter and .170" inside diameter and has a working pressure of 230 PSI.
Photo 23: The hose connects all the components of the RO unit via high quality John Guest fittings. These fittings use a push in connection and are very simple to use and virtually leak free unlike the compression fittings that are commonly used in commercially produced RO units. John Guest fittings cost a little more but are worth it for their ease of use and reliability.
Here's a link to more information about John Guest fittings: http://www.johnguest.com/makeconnect.asp
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