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href="http://m.cdcfah.com/cp/second-jxjxysb_famenti/">閥門</a>?<a href="http://m.cdcfah.com/cp/third-famenti_fatiqg/">閥體</a>?四川閥門論壇上海富樂供</p><div id="y2j73vz" class="leftbox clearfix"><h1>四川閥門論壇上海富樂供</h1><div id="jyvxu3r" class="proBig"><div id="j78rivf" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shspvid/637262584295302735/9806497.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="i3qulsb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shspvid/637262584295302735/9806497.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rta29e2" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>四川閥門論壇</p><p><span>***更新：</span>2020-06-24 15:19:58</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="vzgdah2" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海富樂閥門管件有限公司</a></p><p><span>聯(lián)系人：</span>拓亞光</p><p><span>郵箱: </span></p><p><span>電話: </span>13761339156</p><p><span>傳真: </span>021_69511970</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>021-51692898-821</p><p><span>地址: </span>上海市嘉定區(qū)外岡工業(yè)區(qū)匯賢路530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="3tqnzgq" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dce8h8x" class="box"><p><p> 水泵擴散器不**是過濾外界的雜質(zhì)，它還能替代彎頭、過濾器以及泵吸入端的直管，從而降低了安裝成本，四川閥門論壇。水泵擴散器的出、入口端法蘭規(guī)格可以是出口端法蘭規(guī)格小于入口端，四川閥門論壇，因此可以取代異徑彎頭。水泵擴散器又名吸入口擴散器和角型整流過濾器，可直接安裝在泵的吸入端，具有特殊過濾裝置能有效剔除雜物，平直的整流板能夠為泵提供平穩(wěn)的水流，減少亂流對泵的沖擊和侵蝕，節(jié)省了泵的入口導(dǎo)流管，可大幅度減少安裝空間，四川閥門論壇，具有取代90°彎管，Y型過濾器及整流管的功能。水泵擴散器出口端的矯直葉片可以減小介質(zhì)的紊亂，從而減少介質(zhì)對泵的壓力和侵蝕，因此，水泵擴散器也可以替代常規(guī)情況下為了消除介質(zhì)紊亂而需要的直管，從而節(jié)省了空間，時間以及成本。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川閥門論壇" src="https://tyunfile.71360.com/UploadFile/shspvid/637262584295302735/9806497.png"></div><p> 確定水泵的具體型號確定選用什么系列的泵后，就可按流量，（在沒有流量時，通?？扇≌Ａ髁康模》糯?%—10%余量后的揚程這兩個性能的主要參數(shù)，在型譜圖或者系列特性曲線上確定具體型號。操作如下：利用泵特性曲線，在橫坐標(biāo)上找到所需流量值，在縱坐標(biāo)上找到所需揚程值，從兩值分別向上和向右引垂線或水平線，兩線交點正好落在特性曲線上，則該泵就是要選的泵，但是這種理想情況一般很少，通常會碰上下列兩種情況：第一種：交點在特性曲線上方，這說明流量滿足要求，但揚程不夠，此時，若揚程相差不多，或相差5%左右，仍可選用，若揚程相差很多，則選揚程較大的泵?；蛟O(shè)法減小管路阻力損失。第二種：交點在特性曲線下方，在泵特性曲線扇狀梯形范圍內(nèi)，就初步定下此型號，然后根據(jù)揚程相差多少，來決定是否切割葉輪直徑。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川閥門論壇" src="https://tyunfile.71360.com/UploadFile/shspvid/637262585921103516/8129435.png"></div><p> 研發(fā)資金投入不足國內(nèi)企業(yè)在產(chǎn)品技術(shù)積累及新產(chǎn)品開發(fā)方面與國外公司相比有著明顯的差距?？萍冀?jīng)費、研發(fā)資金投入不足已成為制約水泵制造業(yè)自主研發(fā)的一個主要因素。據(jù)行業(yè)不完全統(tǒng)計，研發(fā)資金投入占企業(yè)銷售收入的比例不足2%，與國外**公司進(jìn)行比較，全行業(yè)的研發(fā)資金投入顯得微乎其微，嚴(yán)重地制約了新技術(shù)、新產(chǎn)品、新材料、新工藝的研發(fā)。2.自主創(chuàng)新能力薄弱對引進(jìn)技術(shù)的消化吸收緩慢，大部分企業(yè)技術(shù)創(chuàng)新能力不強，缺少自主知識產(chǎn)權(quán)制造技術(shù)及產(chǎn)品技術(shù)。雖然水泵行業(yè)大多數(shù)產(chǎn)品已經(jīng)基本實現(xiàn)了自主生產(chǎn)制造，但一些重大技術(shù)裝備由于缺乏自主知識產(chǎn)權(quán)，技術(shù)仍掌握在外方手中。國內(nèi)水泵制造企業(yè)所承擔(dān)的大多是產(chǎn)品的低端加工環(huán)節(jié)，自主化的廣度和深度依然有待提高。 </p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/375731.html</p></div></div></div></div></div><div id="vphoq8b" class="page-right twoColRt"><div id="cm73w4h" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="u3ewtq8" 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