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</form> </div> </div> </div>   <div class="right"> <div class="Position"><span>你的位置：<a href="/">首頁</a> > <a href='/Support/'>技術支持</a></span></div> <div class="HeightTab clearfix"></div>  <div class="main">  <div class="content"> <div class="title"><h3>塑料檢查井制作閥門井的優勢</h3></div> <div class="infos">2019-06-16 16:23:35?來源：<a href="http://www.ellycallison.com">山東文遠建材科技股份有限公司</a> 點擊：<script language="javascript" src="/inc/article_view.asp?id=1126"></script></div> <div class="maincontent clearfix"> <p> <span style="font-size:14px;">閥門井是地下管線及地下管道（如自來水、油、天然氣管道等）的閥門為了在需要進行開啟和關閉部分管網操作或者檢修作業時方便，就設置類似小房間的一個空腔，將閥門等安裝布置在這個空腔里，便于定期檢查、清潔和疏通管道，防止管道堵塞的樞紐。</span> </p> <p style="text-align:center;"> <span style="font-size:14px;"><img src="/images/image/20190616162828872887.jpg" width="450" height="525" alt="" /><br /> </span> </p> <p> <span style="font-size:14px;">閥門井因為是管道的樞紐，所以其自身有以下幾個要求：</span> </p> <p> <span style="font-size:14px;">1：閥門井本身不能滲水，必須保證其密封性；</span> </p> <p> <span style="font-size:14px;">2：給水管道在使用過程中，管道會受到來自不同方面的壓力，從而會產生不同程度的抖動或沉降，即要求給水管道與閥門井的連接方式要可靠，能夠適應一定程度的抖動和沉降，而不會使水滲進井室；在埋地很深的閥門井管道稍大時一般都采用鑄鐵閥門（如截止閥，蝶閥等）鑄鐵閥門長期在水里浸泡，會影響其使用壽命或引起斷裂，因此對密封性的要求更高；</span> </p> <p> <span style="font-size:14px;">3：閥門井井筒與井體、井蓋的連接方式要可靠，不能因為大雨或積水就滲水進入井室里。</span> </p> <p> <span style="font-size:14px;">4：閥門井是埋設于地下的，要承受來自各個方向的不同壓力，和不同化學物質的腐蝕和侵害，及要求其承壓能力和耐酸堿腐蝕性要好。</span> </p> <p> <span style="font-size:14px;">我國常見閥門井有燃氣閥門井及給水閥門井，而制作此類閥門井目前還多數限于使用紅磚、水泥砌制，與排水領域的磚砌井一樣，燃氣/給水用磚砌閥門井，具有原材料成本較低的優勢，同時磚砌閥門井也具有施工工藝復雜、占地面積大、施工周期長、防滲效果不佳等劣勢。塑料閥門井能很好的解決好上述問題。</span> </p> </div> <div class="prenext"> <ul><li>上一篇：<a href='/html/851392315.html' target='_blank' title='塑料檢查井前景以及政府推廣文件'>塑料檢查井前景以及政府推廣文件</a> <span class='ListDate'>2019/7/1</span></li><li>下一篇：<a href='/html/04139681.html' target='_blank' title='塑料檢查井是什么'>塑料檢查井是什么</a> <span class='ListDate'>2019/6/10</span></li></ul> </div> </div> </div>  </div>  </div>  </div>  </div>  <div class="HeightTab clearfix"></div>  <div id="footer"> 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