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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hbispbt" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/cdzhrc/637305179387695312/3910106.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yszqn7n" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>四川小區(qū)給排水管生產(chǎn)廠家,給排水管</p><p><span>***更新：</span>2021-01-21 07:06:38</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="g87iuwd" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">中合瑞成建筑科技（成都）有限公司</a></p><p><span>聯(lián)系人：</span>汪經(jīng)理</p><p><span>郵箱: </span>scyhjx@163.com</p><p><span>電話: </span>15108449464</p><p><span>傳真: </span>028_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>028-85115125</p><p><span>地址: </span>中國(四川)自由貿(mào)易試驗區(qū)成都府城大道西段399號10棟7層1號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="fzbdkhy" class="page-proshow02"><p class="title">詳細說明</p><div id="7pl2lw8" class="box"><p><p style="text-indent:25px">什么材質(zhì)管道做給排水管好，三種材料的優(yōu)點及共同點。<p>PPR給水管道優(yōu)點<p>PP-R管材除具有一般塑料管材質(zhì)輕、強度好、耐腐蝕、使用壽命長的特點外，還由于自身的特性具有無毒(分子中*含有碳氫兩種元素，不會造成對人體的任何毒副使用，是當(dāng)之無愧的環(huán)保健康材料)，四川小區(qū)給排水管生產(chǎn)廠家，不生銹、不結(jié)垢(內(nèi)外壁光滑，具有較強的耐腐蝕性，且對流動液體具有很少的流動阻力)耐熱、防凍、保溫、廢料可以回收利用等優(yōu)點，因此，可用作冷熱水管，四川小區(qū)給排水管生產(chǎn)廠家，純凈水管及飲用水管等，四川小區(qū)給排水管生產(chǎn)廠家。中國建設(shè)服務(wù)網(wǎng)一站式幫您解決給排水管采購及所有的建材問題。希望能幫到大家！雙壁波紋管給排水管，中國建設(shè)服務(wù)網(wǎng)。四川小區(qū)給排水管生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川小區(qū)給排水管生產(chǎn)廠家,給排水管" src="https://tyunfile.71360.com/WaterMark/UploadFile/cdzhrc/637305179387695312/3910106.jpg"></div>給排水管主試驗階段，應(yīng)按如下步驟，并符合下列規(guī)定： <p> （1）在預(yù)試驗階段結(jié)束后，迅速將管道泄水降壓，降壓量為試驗壓力的10％～15％。期間準確計算降壓所泄出的水量，設(shè)為V（L）。按下式計算允許泄出的比較大水量Vmax（L） </p> <p> Vmax＝1.2VP{1/Ew+di/（en·Ep）} </p> <p> 式中V——試壓管道的總?cè)莘e（L）； </p> <p> P——降壓量（MPa）； </p> <p> Ew——水的體積模量（MPa）。不同水溫時Ew。 </p> <p> Ep——管材的彈性模量（MPa），與水溫與試壓時間有關(guān)。 </p> <p> di——管道內(nèi)徑（m）； </p> <p> en——管材公稱壁厚（m）。 </p> <p> 中國建設(shè)服務(wù)網(wǎng)一站式幫您解決給排水管采購及所有的建材問題。四川小區(qū)給排水管生產(chǎn)廠家pe給排水管材生產(chǎn)廠家，中國建設(shè)服務(wù)網(wǎng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川小區(qū)給排水管生產(chǎn)廠家,給排水管" src="https://tyunfile.71360.com/WaterMark/UploadFile/cdzhrc/637305179389277343/1990932.jpg"></div>給排水水管水壓試驗的方法：分為預(yù)試驗階段與主試驗階段。 <p> 1、預(yù)試驗階段，應(yīng)按如下步驟，并符合下列規(guī)定： </p> <p> （1）將試壓管道內(nèi)的壓力降至大氣壓，并持續(xù)60min。期間應(yīng)確保空氣不進入管道。 </p> <p> （2）緩慢地將管道升壓至試驗壓力并穩(wěn)壓30min，期間如有壓力下降可注水補壓，但不得高于試驗壓力。檢查管道接口、配件等處有無滲漏現(xiàn)象。當(dāng)有滲漏現(xiàn)象時應(yīng)中止試壓，并應(yīng)查明原因采取相應(yīng)措施后再重新組織試壓。 </p> <p> （3）停止注水補壓并穩(wěn)定60min。若60min后壓力下降至試驗壓力的70％以上，則預(yù)試驗階段的工作結(jié)束。當(dāng)60min后壓力下降至試驗壓力的70％以下，應(yīng)停止試壓，并應(yīng)查明原因采取相應(yīng)措施后再組織試壓。 </p> <p> 中國建設(shè)服務(wù)網(wǎng)一站式幫您解決給排水管采購及所有的建材問題。 </p><p> PPR給排水管道缺點 </p> <p> <br /> </p> <p> ①管材規(guī)格和配件種類少。配件和閥門種類不齊全，有與金屬門連接不便的問題。大規(guī)格管材目前比較大有Dn160，沒有更大的規(guī)格。受溫度影響變化較大。 </p> <p> ②剛性和抗沖擊性能比金屬管道差，易被損壞。 </p> <p> ③管材的線性膨脹系數(shù)大。 </p> <p> ④抗紫外線能力差。在陽光的長時間照射下和長時間在紫外線環(huán)境中，PPR管材易老化，減少了使用壽命。 </p> <p> 以上關(guān)于給排水管的內(nèi)容就是中建服為大家分享的，想要了解更多關(guān)于給排水管的內(nèi)容請關(guān)注我們公司的網(wǎng)站！給排水pe給水管價格，中國建設(shè)服務(wù)網(wǎng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川小區(qū)給排水管生產(chǎn)廠家,給排水管" src="https://tyunfile.71360.com/WaterMark/UploadFile/cdzhrc/637305179389599609/1208841.jpg"></div>給排水管UPVC管施工時，需注意幾點： <p> （1）承插口的間隙必須嚴格控制，一般不得大于0.15-0.3㎜，若稍大，可先均勻涂刷幾層粘結(jié)劑來調(diào)整。 </p> <p> （2）膠合面要干燥、清潔。涂粘結(jié)劑前比較好線用**或二率乙烯擦干凈。 </p> <p> （3）承口質(zhì)量應(yīng)仔細檢查，不得歪斜或厚度不均勻，并無裂縫等缺陷。 </p> <p> （4）承插長度必須足夠。中國建設(shè)服務(wù)網(wǎng)一站式幫您解決給排水管采購及所有的建材問題。 </p> <p> 以上關(guān)于給排水管的內(nèi)容就是中建服為大家分享的，想要了解更多關(guān)于給排水管的內(nèi)容請關(guān)注我們公司的網(wǎng)站！雙壁給排水波紋管，中國建設(shè)服務(wù)網(wǎng)。四川小區(qū)給排水管生產(chǎn)廠家</p><p style="text-indent:25px">給排水pe供水管道，中國建設(shè)服務(wù)網(wǎng)。四川小區(qū)給排水管生產(chǎn)廠家</p><p> PE給排水管道有哪些缺點： </p> <p> ①PE造價高，管材現(xiàn)在隨著不斷的推廣價格已經(jīng)可以接受，但是管件的價格還是太高。 </p> <p> ②PE不能用于熱水管網(wǎng)。 </p> <p> ③熱熔焊接時需用壓力較大，冷卻時間長。 </p> <p> ④在室外陽光下裸露容易老化。 </p> <p> 以上關(guān)于給排水管的內(nèi)容就是中建服為大家分享的，想要了解更多關(guān)于給排水管的內(nèi)容請關(guān)注我們公司的網(wǎng)站！ </p> <p> <br /> </p> <p> PVC給排水管道缺點： </p> <p> ①管材規(guī)格和配件種類少。配件和閥門種類不齊全，有與金屬門連接不便的問題。 </p> <p> ②剛性和抗沖擊性能比金屬管道差，易被損壞。 </p> <p> ③埋地連接抗壓輕度較低，容易斷裂。四川小區(qū)給排水管生產(chǎn)廠家</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2943034.html</p></div></div></div></div></div><div id="dcebikr" 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