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class="text editor"> PE管的管道質地比較輕，采用專用的對接焊機管道連接起來，一般多用于160毫米以上管。這種管材的額定壓力是什么樣的？以下是小編的整理：<br /> 　　PE管的設計過程是匹配和平衡管道的內徑和壁厚。從管道系統的流量、流量和壓力損失可以看出熱脹冷縮及其控制方法。是溫度變化的有利結果，導致管道系統的熱膨脹和收縮，即管道的軸向長度或收縮，從而導致管道的膨脹或收縮力。<br /> 　　如果PE管系統不能因熱膨脹和冷收縮而收縮，管道的內應力將超過屈服強度，甚至拉伸強度，從而損壞管道系統。這是PE管管道工程設計和安裝中應充分考慮的問題。這些控制管道熱膨脹和收縮的設計參數和方法應在施工和安裝說明中說明。管道容積固定時，管道內徑大，流量低，壓降??；相反，在相同流量下，內徑、高流量和壓降增加。<br /> 　　當流量滿足時，系統的壓降不應超過管道的額定壓力，泵的壓降應超過系統的壓降，但不能超過所選管道的壓力等級。在化工、食品等行業，對通風管道系統的要求越來越高。在化工、清潔度和經濟效益方面，金屬管遠遠落后于塑料管。PE管由玻璃纖維增強聚丙烯制成，沒有添加回收材料。<br /> 　　PE管采用專用電熱熔焊機將直管與直管連接，直管與管件連接。一般用于160毫米以下的管道。其流動性好，易于加工，因此其熔融指數的選擇范圍也很廣。<br /> 小編：Nancy <br /> <div style="text-align:center;"> <img src="/Upload/thumb_61e7d25f2ea90.jpg" width="350" height="270" title="PE管" alt="PE管" /><br /> </div></div> <div class="page" style="clear:both;"> 上一條：<a href="http://www.radiosolarfm.com/hyzx/gsxw/show306.html">選擇PE管裝修的優勢</a><br> 下一條：<a href="http://www.radiosolarfm.com/hyzx/gsxw/show303.html">PE管的彎曲加工</a><br> </div> <h4 class="related"><span style="font-weight:bold;height:30px;line-height:30px;font-size:13px; color:#fff; padding-left:10px">PE管相關資料</span></h4> <ul class="related-list"> <li><a target="_blank" title="PE管的熔接注意事項" href="http://www.radiosolarfm.com/hyzx/gsxw/show153.html">PE管的熔接注意事項</a></li><li><a target="_blank" title="PE管和ppr管能熱熔嗎" href="http://www.radiosolarfm.com/hyzx/hydt/show154.html">PE管和ppr管能熱熔嗎</a></li><li><a target="_blank" title="PE管漏水的原因【分析】" href="http://www.radiosolarfm.com/hyzx/gsxw/show155.html">PE管漏水的原因【分析】</a></li><li><a target="_blank" title="使用PE管的規定要求" href="http://www.radiosolarfm.com/hyzx/hydt/show156.html">使用PE管的規定要求</a></li><li><a target="_blank" title="PE管的幾種常用連接方法" href="http://www.radiosolarfm.com/hyzx/gsxw/show157.html">PE管的幾種常用連接方法</a></li> </ul> <div class="clear"></div>  <h4 class="related"><span style="font-weight:bold;height:30px;line-height:30px;font-size:13px; color:#fff; padding-left:10px">PE管相關產品</span></h4> <div class="related_cp"> <ul>   <li> <a 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