NetPaper - Novrel - Muoviputki Pex-Xc (eng.)

<body> <div style="width: 500px;"> <h1>Novrel - Muoviputki Pex-Xc (eng.) s. 3</h1> <p> <small>Schematic diagram of the HAKAPRESS system</small><br /> <br /> checking and measurement of the oxyHAKA.GERODUR is also an active member gen diffusion barrier layer (magnification of the following Trade Associations: • SFF, Swiss Surface Heating and Cooling with polarised light) • 100% surface inspection before winding Association • BVF, Federal Surface Heating Association onto rolls • gas leak test after radiation cross-linkage (Germany) • eu-ray, European Association for Surface In addition to our own monitoring tests, Heating and Cooling samples of PE-Xc production are regularly inspected by the South German Plastics Centre at Würzburg (SKZ).<br /> •<br /> <br /> </p> <h2>Material properties</h2> <p> Property Density Yield stress Tear resistance Elongation at tear E-modulus at 20°C Longitudinal expansion coefficient Thermal conductivity at 20°C Surface roughness Oxygen-tightness (with co-extruded EVOH coating Weldability Standard DIN 53 479 ISO 527 DIN 527 DIN 527 DIN 53 457 DIN 52 328 DIN 52 612 Prandtl-Colebrook method DIN 4726 Unit g / cm3 N / mm2 N / mm2 % N / mm2 K1 W/ mK mm g/m3 . d Value approx. 0.94 approx. 20 approx. 25 approx. 400 approx. 600 2 x10 4 0.35 0.007 < 0.1 not possible<br /> <br /> Jointing method The HAKAPRESS system ensures fast and utterly reliable joints with HAKA PE-Xc pipes. Of course, other well proven jointing methods can also be used. Benefits of HAKAPRESS • all round even pressing • all «wetted» parts made of brass are tin-plated • press-sleeve made of stainless steel, V2A • patented front seal against water from inside, or condensate from outside HAKA.GERODUR quality We believe that top quality is vital, so monitoring is carried out at regular intervals both by ourselves and specialists of external organisations. We perform the following inspections in our own works on a continuous basis:<br /> •<br /> <br /> Creep/internal pressure behaviour to DIN 16 892<br /> 15<br /> <br /> </p> <h2>20° C</h2> <p> 10 8 Comparative stress [N/mm2] 6 5 4 3<br /> <br /> <small>40° C 60° C</small><br /> <br /> inspection of incoming raw materials: – melt-flow index – dry loss surface quality of the finished pipe dimensional checks: – continuous 100% measurements in-line – external Ø, inner Ø and wall thickness tolerance fields to DIN 16 893 change in length after heat treatment test of cross-linkage degree to DIN 16 892 internal pressure tests for creep (conclusions regarding life expectancy)<br /> <br /> <small>1 0.1 1 10 102 103 104 1 105 10 106 h 50 Lifetime (years)</small><br /> <br /> </p> </div> <div> <table border="0" cellspacing="0" cellpadding="0"> <tr> <td>Sivu:</td> <td> <a href="http://novrel.netpaper.fi/4548" title="etusivu">[<small><<</small>]</a></td> <td> <a href="http://novrel.netpaper.fi/4549" title="edellinen sivu">[<small><</small>]</a></td> <td> <a href="http://novrel.netpaper.fi/4551" title="seuraava sivu">[<small>></small>]</a></td> <td> <a href="http://novrel.netpaper.fi/4551" title="takasivu">[<small>>></small>]</a></td> </tr> </table> </div> <div> <table border="0" cellspacing="0" cellpadding="0"> <tr> <td>Julkaisu:</td> <td> <a href="http://novrel.netpaper.fi/4568" title="vanhin julkaisu">[<small><<</small>]</a></td> <td> <a href="http://novrel.netpaper.fi/22138" title="vanhempi julkaisu">[<small><</small>]</a></td> <td> <a href="http://novrel.netpaper.fi/19767" title="uudempi julkaisu">[<small>></small>]</a></td> <td> <a href="http://novrel.netpaper.fi/4574" title="uusin julkaisu">[<small>>></small>]</a></td> </tr> </table> </div> </body>