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href="http://www.cdcfah.com/cp/third-jxjxysb_neiranji/">內(nèi)燃機(jī)</a>?湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥歡迎咨詢銳銓供</p><div id="2vnkeac" class="leftbox clearfix"><h1>湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥歡迎咨詢銳銓供</h1><div id="g2gczbd" class="proBig"><div id="udn8mbt" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637305768478261718/3766613.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="v33ogip" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637305768478261718/3766613.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wkxumy2" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥,進(jìn)氣切斷閥</p><p><span>***更新：</span>2020-10-16 03:00:30</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="ftvi837" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海銳銓機(jī)電設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>李恬</p><p><span>郵箱: </span>roltran@163.com</p><p><span>電話: </span>13918994917</p><p><span>傳真: </span>021_61492341</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-61492341</p><p><span>地址: </span>環(huán)林東路799弄9號(hào)1層B142室</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="bovszga" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="yx7czbi" class="box"><p><p> 接頭尺寸至少為3/4英寸，湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥。當(dāng)容器接頭是法蘭式管嘴并且切斷閥直接安裝在管嘴上時(shí)，接頭**小尺寸為1英寸。當(dāng)容器接頭是管接頭且切斷閥安裝在一個(gè)短節(jié)上時(shí)，湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥，接頭的**小尺寸為3/4英寸，(除下述提到的例外情況外)。容器和切斷閥之間的配件或管道要減至**低限度。折疊編輯本段例外情況1.特殊應(yīng)用如果容器的管嘴是法蘭式的并且被連接的儀表(如差壓計(jì))是小尺寸的螺紋接頭，這時(shí)切斷閥**小可用3/4英寸的口徑并可以用一個(gè)縮徑法蘭和短節(jié)連接到容器管嘴上。2.雙切斷閥有些公司允許在并聯(lián)的儀表上采用雙切斷閥，這些儀表用直接裝在管嘴上的三通連接起來。這種方法可以節(jié)省空間并在很多情況下比較經(jīng)濟(jì)。3.法蘭式安裝的薄膜液位變送器這種型式的儀表安裝可設(shè)計(jì)成與容器壁齊平，變送器可用與法蘭同樣大小的切斷閥安裝在容器管嘴和變送器之間。折疊編輯本段用途切斷閥的用途很廣，湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥，可用于切斷煤氣、助燃空氣、冷風(fēng)及煙氣。煤氣切斷閥是把燃燒器與煤氣管道切斷。助燃空氣切斷閥是將燃燒器與助燃空氣管道切斷。熱風(fēng)爐在送風(fēng)期用燃燒器切斷閥將熱風(fēng)爐與燃燒器或煤氣系統(tǒng)及助燃空氣系統(tǒng)隔斷。煙道閥使熱風(fēng)爐與煙道隔離。冷風(fēng)閥的用途是在熱風(fēng)爐燃燒期把冷風(fēng)管道與熱風(fēng)爐隔開。適應(yīng)1區(qū)危險(xiǎn)區(qū)域、氣體組別IIB，溫度組別T4的ATEX認(rèn)證。湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥,進(jìn)氣切斷閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637305768478261718/3766613.png"></div><p> 其他因素 </p> <p> <br /> </p> <p> 對(duì)含顆粒的沖蝕介質(zhì)，要考慮閥芯避開高速介質(zhì)的直接沖蝕。 </p> <p> 對(duì)于硬密封，必須有足夠的硬度差，同一硬度材料“互不相讓”，很容易劃傷而引起泄漏。 </p> <p> 溫度因素影響如下： </p> <p> 對(duì)高溫介質(zhì)的切斷調(diào)節(jié)閥在室溫下組裝的，在高溫下工作，溫度變化幾百度。熱膨脹會(huì)改變裝配時(shí)建立的密封比壓。過緊，密封面會(huì)卡信，運(yùn)動(dòng)時(shí)會(huì)嚴(yán)重檫傷，拉傷；過松，密封壓不夠，兩種情況泄漏都會(huì)急劇增加。解決的比較好辦法是用彈性閥座來吸收這一變化造成的差異。通常有三種彈性方案： </p> <p> 1）彈簧式； </p> <p> 2）薄片式柔性金屬環(huán)； </p> <p> 3）剛?cè)嵯酀?jì)的彈性閥座。 </p> <p> 后者比較好，既有柔性克服熱膨脹，又有剛度并堆焊耐磨合金來提高耐磨面的可靠性。海南康明斯CUMMINS柴油機(jī)進(jìn)氣切斷閥中國防爆標(biāo)準(zhǔn)GB/T 20800-2016 性環(huán)境用往復(fù)式內(nèi)燃機(jī)防爆技術(shù)通則。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥,進(jìn)氣切斷閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637305768532255859/7140667.png"></div><p> 切斷閥是自動(dòng)化系統(tǒng)中執(zhí)行機(jī)構(gòu)的一種，由多彈簧氣動(dòng)薄膜執(zhí)行機(jī)構(gòu)或浮動(dòng)式活塞執(zhí)行機(jī)構(gòu)與調(diào)節(jié)閥組成，接收調(diào)節(jié)儀表的信號(hào)，控制工藝管道內(nèi)流體的切斷、接通或切換。具有結(jié)構(gòu)簡單，反應(yīng)靈敏，動(dòng)作可靠等特點(diǎn)?？善毡榈貞?yīng)用在石油、化工、冶金等工業(yè)生產(chǎn)部門。氣動(dòng)切斷閥的氣源要求經(jīng)過濾的壓縮空氣，流經(jīng)閥體內(nèi)的介質(zhì)應(yīng)該是無雜質(zhì)和無顆粒的液體和氣體。根據(jù)允許壓差情況、介質(zhì)特點(diǎn)以及工藝管道要求，可選用單座、套筒、三通切斷閥。切斷閥工作的可靠性，在很大程度上取決于正確選擇其結(jié)構(gòu)和完全能適合其工作條件的材料，并取決于運(yùn)行條件。如切斷閥只能在兩種狀態(tài)下工作，全開或全關(guān)。當(dāng)閥瓣在閥座內(nèi)處于中間位置時(shí)，由于壓降大而產(chǎn)生大的流速，這就形成汽蝕的條件，引起侵蝕，破壞閥瓣和閥座的密封面，結(jié)果喪失了關(guān)閉件的密封性，在滲漏介質(zhì)對(duì)金屬的作用下，初始時(shí)的小漏很快會(huì)變成大漏。[1]材質(zhì)所有切斷閥的材質(zhì)、壓力等級(jí)和連接方式，必須同與其相連接的設(shè)備的規(guī)格相符。這一點(diǎn)適用于所有的切斷閥，無論它是直接安裝在設(shè)備上還是裝在一個(gè)與設(shè)備相連的立管上。[2]位置和尺寸切斷閥可裝在容器接頭或立管上。當(dāng)閥連接在立管上時(shí)，接頭尺寸至少為3/4英寸。</p><p> 當(dāng)容器接頭是法蘭式管嘴并且切斷閥直接安裝在管嘴上時(shí)，接頭**小尺寸為1英寸。當(dāng)容器接頭是管接頭且切斷閥安裝在一個(gè)短節(jié)上時(shí)，接頭的**小尺寸為3/4英寸，（除下述提到的例外情況外）。容器和切斷閥之間的配件或管道要減至**低限度。例外情況1．特殊應(yīng)用如果容器的管嘴是法蘭式的并且被連接的儀表(如差壓計(jì))是小尺寸的螺紋接頭，這時(shí)切斷閥**小可用3/4英寸的口徑并可以用一個(gè)縮徑法蘭和短節(jié)連接到容器管嘴上。2．雙切斷閥有些公司允許在并聯(lián)的儀表上采用雙切斷閥，這些儀表用直接裝在管嘴上的三通連接起來。這種方法可以節(jié)省空間并在很多情況下比較經(jīng)濟(jì)。3．法蘭式安裝的薄膜液位變送器這種型式的儀表安裝可設(shè)計(jì)成與容器壁齊平，變送器可用與法蘭同樣大小的切斷閥安裝在容器管嘴和變送器之間。[2]用途切斷閥的用途很廣，可用于切斷煤氣、助燃空氣、冷風(fēng)及煙氣。煤氣切斷閥是把燃燒器與煤氣管道切斷。助燃空氣切斷閥是將燃燒器與助燃空氣管道切斷。熱風(fēng)爐在送風(fēng)期用燃燒器切斷閥將熱風(fēng)爐與燃燒器或煤氣系統(tǒng)及助燃空氣系統(tǒng)隔斷。煙道閥使熱風(fēng)爐與煙道隔離。冷風(fēng)閥的用途是在熱風(fēng)爐燃燒期把冷風(fēng)管道與熱風(fēng)爐隔開。當(dāng)冷風(fēng)管道內(nèi)壓力下降時(shí)。氣動(dòng)手動(dòng)停車系統(tǒng)就是用手動(dòng)切換閥來實(shí)現(xiàn)切斷進(jìn)氣的控制系統(tǒng)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥,進(jìn)氣切斷閥" src="https://tyunfile.71360.com/WaterMark/UploadFile/shrqjd/637305768469169921/7852127.png"></div><p> 根據(jù)允許壓差情況、介質(zhì)特點(diǎn)以及工藝管道要求，可選用單座、套筒、三通切斷閥； </p> <p> 根據(jù)壓力情況，可選用公稱壓力為PNl.6Mpa，PN4.0Mpa，PN6.4Mpa的切斷閥； </p> <p> 根據(jù)介質(zhì)防腐蝕要求以及壓力等級(jí)，可選用鑄鐵、鑄鋼、鑄不銹鋼、鑄合金鋼等材質(zhì)的切斷閥； </p> <p> 根據(jù)介質(zhì)溫度以及特殊要求，可選用標(biāo)準(zhǔn)型、高溫(散熱)型、低溫型、夾套保溫型的切斷閥； </p> <p> 根據(jù)介質(zhì)泄漏以及安全方面的考慮，可選用硬密封、軟密封、波紋管密封等切斷閥； </p> <p> 根據(jù)工藝控制要求，可配如下附件：手輪機(jī)構(gòu)、空氣過濾減壓器、快速排氣閥、電磁閥、行程開關(guān)等。中國防爆標(biāo)準(zhǔn)SY/T 6728-2008 石油天然氣工業(yè) - 柴油/天然氣雙燃料發(fā)動(dòng)機(jī)規(guī)范。黑龍江進(jìn)氣切斷閥</p><p style="text-indent:25px">F系列切斷閥結(jié)構(gòu)緊湊輕便，堅(jiān)固耐用。湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥</p><p> 條件允許時(shí)盡量選用硬密封。"O"型球閥硬密封可達(dá)10-5，三偏心蝶閥可達(dá)零泄漏。2)對(duì)密封耐磨性的考慮:除選硬密封外，對(duì)泄漏要求10-4以上的切斷型調(diào)節(jié)閥，必須堆焊耐磨合金以提高密封的耐磨性、耐沖蝕、耐劃傷的能力，提高閥的壽命。折疊其他因素對(duì)含顆粒的沖蝕介質(zhì)，要考慮閥芯避開高速介質(zhì)的直接沖蝕。對(duì)于硬密封，必須有足夠的硬度差，同一硬度材料"互不相讓"，很容易劃傷而引起泄漏。溫度因素影響如下:對(duì)高溫介質(zhì)的切斷調(diào)節(jié)閥在室溫下組裝的，在高溫下工作，溫度變化幾百度。熱膨脹會(huì)改變裝配時(shí)建立的密封比壓。過緊，密封面會(huì)卡信，運(yùn)動(dòng)時(shí)會(huì)嚴(yán)重檫傷，拉傷;過松，密封壓不夠，兩種情況泄漏都會(huì)急劇增加。解決的**好辦法是用彈性閥座來吸收這一變化造成的差異。通常有三種彈性方案:1)彈簧式;2)薄片式柔性金屬環(huán);3)剛?cè)嵯酀?jì)的彈性閥座。后者**好，既有柔性克服熱膨脹，又有剛度并堆焊耐磨合金來提高耐磨面的可靠性。折疊推薦順序按上所述，切斷閥的主要閥型如下，選擇切斷閥應(yīng)綜合考慮泄漏率、介質(zhì)種類、介質(zhì)溫度、流量系數(shù)等各種參數(shù)和性價(jià)比。在如下推薦順序中，先考慮硬密封，再考慮軟密封。1)三偏心金屬硬密封蝶閥;2)雙偏心球面密封蝶閥;3)球閥;4)偏心旋轉(zhuǎn)閥;5)單座閥。湖南底特律DDC柴油機(jī)進(jìn)氣切斷閥</p><p style="text-indent:25px">上海銳銓機(jī)電設(shè)備有限公司主要經(jīng)營范圍是機(jī)械及行業(yè)設(shè)備，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場口碑。公司業(yè)務(wù)涵蓋FPE溫控閥，AMOT溫控閥，進(jìn)口溫控閥，CALTHERM等，價(jià)格合理，品質(zhì)有保證。公司秉持誠信為本的經(jīng)營理念，在機(jī)械及行業(yè)設(shè)備深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢(shì)，打造機(jī)械及行業(yè)設(shè)備良好品牌。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1570666.html</p></div></div></div></div></div><div id="33cov7z" class="page-right twoColRt"><div id="sm3rjgs" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mwdfhtq" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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