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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>浙江省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>廣東1500lb美標(biāo)高壓止回閥費用,止回閥</p><p><span>***更新：</span>2020-11-07 02:12:09</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="o78kh8e" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">浙江京州閥門制造有限公司</a></p><p><span>聯(lián)系人：</span>張和榮</p><p><span>郵箱: </span>maggiez@jcs-valve.com</p><p><span>電話: </span>15888733099</p><p><span>傳真: </span>0577_67351896</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0577-67359296</p><p><span>地址: </span>甌北街道五星工業(yè)區(qū)上玉路</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="g7taspw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="oy2x2gx" class="box"><p><p style="text-indent:25px">止回閥是用來防止管道和設(shè)備中介質(zhì)倒流的一種閥門。汽輪機(jī)組中抽汽回?zé)嵯到y(tǒng)外置加熱器的各抽汽管上均設(shè)置抽汽止回閥其作用是在機(jī)組甩負(fù)荷時，閥板自動關(guān)閉，防止加熱器汽側(cè)及進(jìn)汽管道中的蒸汽倒回汽輪機(jī)內(nèi)，引起汽輪機(jī)超速避免事故的發(fā)生。引進(jìn)型300MW機(jī)組配套的抽汽止回閥是氣控旋啟式止回閥，廣東1500lb美標(biāo)高壓止回閥費用。主要由閥體、閥板、軸、軸套等組成，氣控操縱座由活塞、氣缸體、門桿、彈簧等組成。電站止回閥的檢修前的準(zhǔn)備工作有以下內(nèi)容：在設(shè)備停役，廣東1500lb美標(biāo)高壓止回閥費用，保護(hù)及電源、氣源切斷后，將氣控操縱座的進(jìn)氣、出氣接頭松開，操縱座活塞桿與止回閥杠桿相連接的銷子拆除，并松開操縱座的固定螺栓后把操縱座拆下，定量擺放。然后，進(jìn)行下面的工作。美標(biāo)電站止回閥的高溫耐壓部件采用質(zhì)量耐熱合金鋼制造，廣東1500lb美標(biāo)高壓止回閥費用,安全可靠,性能穩(wěn)定,使用壽命長。廣東1500lb美標(biāo)高壓止回閥費用</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東1500lb美標(biāo)高壓止回閥費用,止回閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448713857422/4498936.png"></div><p style="text-indent:25px">旋啟式止回閥適合用在公稱壓力PN1.0MPa~42.0MPa、Class150-2500；公稱通徑是DN15到1200mm、NPS1/2~48；工作溫度在196到540℃的各種管路上面，常用在防止介質(zhì)的倒流。通過選擇不同的材質(zhì)，可適合水、蒸汽、硝酸、醋酸、油品、強(qiáng)氧化性介質(zhì)及尿素等多種介質(zhì)。旋啟式止回閥的用于裝搖臂的旋啟式結(jié)構(gòu)，閥門的所有的啟閉件可以裝在閥體內(nèi)部，不穿透閥體，除了中法蘭的部位用密封墊片和密封環(huán)外，整體無外漏點，杜絕閥門外泄的可能。旋啟式止回閥搖臂和閥瓣連接處采用球面連接的結(jié)構(gòu)，使得閥瓣在360度范圍內(nèi)有一定的自由度，有適當(dāng)?shù)奈⒘课恢醚a(bǔ)償。旋啟式止回閥適用于清凈介質(zhì)，不宜用于含有固體顆粒和粘度較大的介質(zhì)。廣東1500lb美標(biāo)高壓止回閥費用升降式水平瓣電站止回閥應(yīng)安裝在水平管道上。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東1500lb美標(biāo)高壓止回閥費用,止回閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448654775391/2829326.png"></div><p style="text-indent:25px">旋啟式止回閥有一介鉸鏈機(jī)構(gòu)，還有一個像門一樣的閥瓣自由地靠在傾斜的閥座表面上。為了確保閥瓣每次都能到達(dá)閥座面的合適位置，閥瓣設(shè)計在鉸鏈機(jī)構(gòu)，以便閥瓣具有足夠有旋啟空間，并使閥瓣真正的、與閥座接觸。閥瓣可以全部用金屬制成，也可以在金屬上鑲嵌皮革、橡膠、或者采用合成覆蓋面，這取決于使用性能的要求。旋啟式止回閥在完全打開的狀況下，壓力幾乎不受阻礙，因此通過閥門的壓力降相對較小。升降式止回閥的閥瓣坐落位于閥體上閥座密封面上。</p><p style="text-indent:25px">電站止回閥按結(jié)構(gòu)劃分，可分為升降式止回閥、旋啟式止回閥和蝶式止回閥三種。升降式止回閥可分為立式和臥式兩種。旋啟式止回閥分為單瓣式、雙瓣式和多瓣式三種。蝶式止回閥為直通式、以上幾種止回閥在連接形式上可分為螺紋連接、法蘭連接和焊接三種。電站止回閥:止回閥又稱單向閥或逆止閥，其作用是防止管路中的介質(zhì)倒流。也屬于止回閥類。啟閉件靠介質(zhì)流動和力量自行開啟或關(guān)閉，以防止介質(zhì)倒流的閥門叫止回閥。止回閥屬于自動閥類，主要用于介質(zhì)單向流動的管道上，只允許介質(zhì)向一個方向流動，以防止發(fā)生危險事件。電站止回閥一般分為升降式、旋啟式、蝶式及隔膜式等幾種類型。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東1500lb美標(biāo)高壓止回閥費用,止回閥" src="https://tyunfile.71360.com/UploadFile/jingzhou/637279448642070312/4975458.png"></div><p style="text-indent:25px">旋啟式止回閥選用于公稱壓力PN1.6～6.4MPa,工作溫度-29～550℃的石油、化工、火力電站等各種工況的管路上。適用介質(zhì)為：水、油品、蒸汽等。結(jié)構(gòu)與特點： 1、選材考究，符合國內(nèi)、外相關(guān)標(biāo)準(zhǔn)，材料的質(zhì)量高。 2、密封副配對先進(jìn)合理，閥瓣、閥座密封面采用鐵基合金或鈷基硬質(zhì)合金堆焊面成，耐磨、耐高溫、耐腐蝕、抗擦傷性能好，使用壽命長。 3、產(chǎn)品按國家標(biāo)準(zhǔn)GB/T12235設(shè)計制造。 4、可采用各種配管法蘭標(biāo)準(zhǔn)及法蘭密封型式，滿足各種工程需要及用戶要求。 5、閥體材料品種齊全，墊片可根據(jù)實際工況或用戶要求合理選配，能適用于各種壓力、溫度及介質(zhì)工況。 6、可按用戶要求設(shè)計制造不同結(jié)構(gòu)形式和連接形式的止回閥，為各種設(shè)備配套使用美標(biāo)止回閥產(chǎn)品設(shè)計制造符合美國先進(jìn)標(biāo)準(zhǔn)要求，密封可靠，性能優(yōu)良。廣東1500lb美標(biāo)高壓止回閥費用</p><p style="text-indent:25px">電站止回閥常見故障有：1、閥瓣打碎；2、介質(zhì)倒流。廣東1500lb美標(biāo)高壓止回閥費用</p><p style="text-indent:25px">止回閥選型標(biāo)準(zhǔn)：旋啟式止回閥的安裝位置不受限制，它可裝在水平、垂直或傾斜的管線上，如裝在垂直管道上，介質(zhì)流向要由下而上；旋啟式止回閥不宜制成小口徑閥門、可以做成很高的工作壓力，公稱壓力可達(dá)到42MPa，而且公稱通徑也可以做到很大，比較大可以達(dá)到2000mm以上。根據(jù)殼體及密封件的材質(zhì)不同可以適用任何工作介質(zhì)和任何工作溫度范圍。介質(zhì)為水、蒸汽、氣體、腐蝕性介質(zhì)、油品、藥品、等。介質(zhì)工作溫度范圍在-196--800℃之間；旋啟式止回閥適用場合是低壓大口徑，而且安裝場合受到限制。廣東1500lb美標(biāo)高壓止回閥費用</p><p style="text-indent:25px">浙江京州閥門制造有限公司是一家閥門、泵、閥門配件制造、銷售／貨物與技術(shù)進(jìn)出口。主營單向密封雙向密封刀閘閥、漿液閥、穿透式刀閘閥、礦漿閥，方閘門，電站閘閥、電站截止閥、電站止回閥。材質(zhì)包含不銹鋼，碳鋼，球鐵，灰鐵，雙相鋼，鉻鉬鋼等。的公司，致力于發(fā)展為創(chuàng)新務(wù)實、誠實可信的企業(yè)。浙江京州閥門深耕行業(yè)多年，始終以客戶的需求為向?qū)В瑸榭蛻籼峁?**的刀閘閥，穿透式刀閘閥，礦漿閥，漿液閥。浙江京州閥門始終以本分踏實的精神和必勝的信念，影響并帶動團(tuán)隊取得成功。浙江京州閥門始終關(guān)注機(jī)械及行業(yè)設(shè)備市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: 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