The lifecycle of current HDPE pipes in potable water applications
The lifecycle of current HDPE pipes in potable water applications
The lifecycle of current HDPE pipes in potable water applications
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Current R&D … Case Studies (Jana/PPI 2009)<br />
http://www.janalab.com/pdf/PE%20Chlor<strong>in</strong>e%20Report%20-%20F<strong>in</strong>al-2.pdf<br />
<strong>The</strong> PE <strong>in</strong>dustry has been work<strong>in</strong>g proactively to develop long-term<br />
validation methodologies for the Stage III brittle-oxidative regime.<br />
General Approach:<br />
Data for <strong>current</strong> generation PE materials<br />
Test<strong>in</strong>g <strong>in</strong> progress per ASTM F2263 and for actual utility end-use<br />
conditions used <strong>in</strong> model<br />
<strong>The</strong> methodology developed <strong>in</strong> this study provides a significant<br />
advancement over other approaches (OIT, …) and provides a means<br />
for forecast<strong>in</strong>g specific pipe performance as a function <strong>of</strong> operat<strong>in</strong>g<br />
conditions<br />
To simplify analysis:<br />
Standardized on DR11<br />
Did not scale for pipe size (conservative approach)<br />
Conservative approach to chloram<strong>in</strong>es – set ORP to 650 mV<br />
www.janalab.com
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