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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="v8jfcel" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864796992188/8712118.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="y2nkrtf" 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>新疆維吾爾自治區(qū)</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>烏魯木齊焊接球閥哪家好,閥</p><p><span>***更新：</span>2020-10-15 04:06:17</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="lfulikr" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">新疆遠(yuǎn)大通用閥門有限公司</a></p><p><span>聯(lián)系人：</span>李嘉豪</p><p><span>郵箱: </span>1183099099@qq.com</p><p><span>電話: </span>18999955968</p><p><span>傳真: </span>0991_6877477</p><p><span>網(wǎng)址: </span>http://www.xjyuanda.com</p><p><span>手機(jī): </span>0991-6877477</p><p><span>地址: </span>烏魯木齊市高新技術(shù)產(chǎn)業(yè)開發(fā)區(qū)（新市區(qū)）清水街213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="o7ikrtv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="eofxp28" class="box"><p><p> 風(fēng)機(jī)盤管、排氣閥前用量很大；要注意水流方向；DN200以上不宜采用截止閥，因為關(guān)斷力太大，人工幾乎不能關(guān)斷。球閥DN50及以下采用全銅絲接，球體一般為不銹鋼，密封環(huán)為四氟；注意：安裝過程中容易“還扣”，造成泄漏。鎖閉閥多功能鎖閉閥；磁性鎖閉閥；IC卡鎖閉閥?？照{(diào)水系統(tǒng)止回類閥門1、消聲止回閥；2、緩閉止回閥；3、無聲止回閥；4、蝶式止回閥閥。消聲止回閥多用于水泵出水口；閥瓣為升降型，多為梭式或環(huán)噴式；采用彈簧升降助力式，因此阻力較大，但是停泵后在尚有1~2米水頭時，在彈簧的作用小閥瓣已經(jīng)關(guān)閉，因此消除水錘效果很好；結(jié)構(gòu)簡單，幾乎不用維護(hù)；適合立式安裝，不適合臥裝；適合用于水泵出口處，應(yīng)設(shè)置檢修用閘閥或蝶閥以及橡膠軟接頭或金屬軟接頭。DN50以下一般為全銅絲接。緩閉止回閥《給排水用緩閉止回閥通用技術(shù)條件》CJ/T154－2001，烏魯木齊焊接球閥哪家好，為蝶式液壓阻尼式緩閉止回閥，優(yōu)點(diǎn)：結(jié)構(gòu)簡單，阻力小，緩閉效果明顯，連接尺寸小；缺點(diǎn)：一般為速開緩閉，烏魯木齊焊接球閥哪家好，不能緩開，液壓阻尼機(jī)構(gòu)可靠性差。目前較常用，較流行的是活塞式或膜片式緩閉止回閥，烏魯木齊焊接球閥哪家好，優(yōu)點(diǎn)是阻力小，緩開緩閉，速度可調(diào)，防水錘效果好，維修方便，可靠性高；缺點(diǎn)是結(jié)構(gòu)復(fù)雜，造價較高。烏魯木齊減壓穩(wěn)壓閥批發(fā)。烏魯木齊焊接球閥哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="烏魯木齊焊接球閥哪家好,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864796992188/8712118.jpg"></div><p> 不宜選用截止閥和閘閥，因為它們的密封面容易被析晶和沉淀物磨損。因此，應(yīng)選用球閥或旋塞閥較合適；也可選平板閘閥，但**好采用夾管閥。在閘閥的選型上，明桿單閘板比暗桿雙閘板適應(yīng)腐蝕性介質(zhì)；單閘板適于粘度大的介質(zhì)；楔式雙閘板對高溫和對密封面變形的適應(yīng)性比楔式單閘板要好，不會出現(xiàn)因溫度變化產(chǎn)生卡現(xiàn)象，特別是比不帶彈性的單閘板優(yōu)越。需要準(zhǔn)確的調(diào)節(jié)小流量時，不宜需要截止閥，應(yīng)采用針型閥或節(jié)流閥。在需要保持閥后的壓力穩(wěn)定時，應(yīng)采用減壓閥。對高壓和超高壓介質(zhì)，常采用直角式截止閥，因為直角式截止閥通常是鍛鋼制作的，鍛鋼的耐壓能力相對比鑄鋼強(qiáng)。2.經(jīng)濟(jì)合理性對腐蝕性介質(zhì)，如果溫度和壓力不高，應(yīng)盡量采用非金屬閥門；如果溫度和壓力較高，可用襯里閥門，以節(jié)約貴重金屬。在選擇非金屬閥門時，仍應(yīng)考慮經(jīng)濟(jì)合理性。例如，在能夠用聚氯乙烯的情況下，就不用聚四氟乙烯，因為聚四氟乙烯比聚氯乙烯的價格要高。對溫度較高、壓力較大的場合，應(yīng)根據(jù)溫壓表，若普通碳素鋼閥門能滿足使用要求，就不宜采用合金鋼閥門，因為合金鋼閥門價格要高得多。對于粘度較大的介質(zhì)，要求有較小的流阻，應(yīng)采用Y型直流式截止閥、閘閥、球閥、旋塞閥等流阻小的閥門。新疆渦輪對夾蝶閥價格伊犁氣動三通閥門價格；</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="烏魯木齊焊接球閥哪家好,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864799570313/5526304.jpg"></div><p> 公稱壓力：按質(zhì)量碳素鋼材質(zhì)和介質(zhì)參數(shù)，由表1-3查得：閥門公稱壓力為PN=16MPa。密封面材料：根據(jù)閥門公稱壓力和介質(zhì)溫度，按表2-3b可選用不銹鋼或硬質(zhì)合金鋼。驅(qū)動方式：本例未提特殊要求，可采用手輪驅(qū)動。連接形式：法蘭連接。公稱通徑：根據(jù)介質(zhì)參數(shù)，管材可選用50號質(zhì)量碳素鋼無縫鋼管，按管子內(nèi)徑107mm，公稱壓力℃溫度下的許用應(yīng)力，管子壁厚選定為14mm，則管子計算外徑為DW=107+2×14=135mm，采用外徑為140mm，此時公稱通徑為DN=125mm。閥門的公稱直徑應(yīng)與管子相同。閥門的類型與型號：油品管道應(yīng)選用閘閥。根據(jù)閥門參數(shù)表的參數(shù)，當(dāng)PN=16MPa時，截止閥**大公稱通徑為40mm，而同樣壓力等級下閘閥的**大公稱通徑為200mm，因此也應(yīng)選用閘閥。按閘閥參數(shù)表，在PN16MPa下的碳鋼手輪法蘭閘閥型號有Z41H-160和Z41Y-160兩種。但前者的**大公稱通徑為40mm，而后者的**大公稱通徑為200mm，故應(yīng)選用Z41Y-160型閘閥，其閥門密封面為硬質(zhì)合金。所選用的呋喃全稱為：明桿楔式單閘板閘閥（Z41Y-160DN125）。八、自動閥門的選用返回頁首自動閥門的選用與一般閥門一樣，除要考慮經(jīng)濟(jì)合理性、經(jīng)久耐用外，還要求自動閥門的動作靈敏、可靠、調(diào)節(jié)準(zhǔn)確等性能。</p><p> 其耐蝕性也不相同。塑料襯里的耐蝕性與上述塑料閥門中的相應(yīng)塑料相同。但選用時，應(yīng)考慮塑料襯里閥門中使用的其它材料的耐蝕性能。⑽橡膠襯里閥門橡膠較軟，因此很多閥門采用橡膠做襯里，以提高閥門的抗蝕性能和密封性能。隨橡膠種類的不同，其耐蝕性差異較大。經(jīng)過硫化的天然橡膠能耐非氧化性酸、堿、鹽的腐蝕，但不耐強(qiáng)氧化劑，如硝酸、鉻酸、濃***的腐蝕，也不耐石油產(chǎn)品和某些有機(jī)溶劑的腐蝕。因此，天然橡膠被合成橡膠逐漸代替。合成橡膠中的丁腈橡膠耐油性能好，但不耐氧化性酸、芳烴、脂、酮、醚等強(qiáng)溶劑的腐蝕；氟橡膠耐蝕性能優(yōu)異，能耐各類酸、堿、鹽、石油產(chǎn)品、烴類等，但耐溶劑性不及氟塑料；聚醚橡膠可用于水、油、氨、堿等介質(zhì)。⑾鉛襯里閥門鉛屬活性金屬，但因材質(zhì)軟，常用作特殊閥門的襯里。鉛的腐蝕產(chǎn)物膜是很強(qiáng)的保護(hù)層，它是耐***的有名材料，在磷酸、鉻酸、碳酸及中性溶液、海水等介質(zhì)中具有較高的耐蝕性能、但不耐堿、鹽酸的腐蝕，也不適于在它們的腐蝕產(chǎn)物中工作。四、根據(jù)溫度和壓力選用閥門返回頁優(yōu)先用閥門除了考慮介質(zhì)的腐蝕性能、流量特性、連接形式外，介質(zhì)的溫度和壓力是重要的參數(shù)?？死斠滥透g閥門生產(chǎn)廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="烏魯木齊焊接球閥哪家好,閥" src="https://tyunfile.71360.com/UploadFile/Ydfm123/637230864802158203/3440819.jpg"></div><p> 并能在進(jìn)口壓力及流量變動時，利用本身介質(zhì)能量保持出口壓力基本不變的閥門。減壓閥分直接作用式和先導(dǎo)式，見圖1-37～圖1-40.⑴直接作用式直接作用式減壓閥是用壓縮彈簧、重物或重力杠桿以及壓縮空氣加載。通過膜片、活塞或波紋管直接進(jìn)行壓力控制的閥門。這種閥門結(jié)構(gòu)簡單、耐用。在比較惡劣的工況下，只要維護(hù)得當(dāng)，也能有很長的壽命。雖然直接作用式的壓力調(diào)節(jié)不像先導(dǎo)式那么精確，但是造價低?？梢?**地用于不必要做精確控制的場合。常用的直接作用式減壓閥按結(jié)構(gòu)形式分有：彈簧薄膜式減壓閥、活塞式減壓閥、波紋管式減壓閥和杠桿式減壓閥。彈簧薄膜式減壓閥是采用膜片作敏感元件來帶動閥瓣運(yùn)動的減壓閥。它的靈敏度高，宜用于溫度和壓力不高的水和空氣介質(zhì)管道上。活塞式減壓閥是采用活塞作敏感元件來帶動閥瓣運(yùn)動的減壓閥。由于活塞在汽缸中承受的摩擦力較大，靈敏度不及薄膜式減壓閥。因此，適用于承受溫度、壓力較高的以蒸汽和空氣等為工作介質(zhì)的管道和設(shè)備上。波紋管式減壓閥是采用波紋管作敏感元件來帶動閥瓣運(yùn)動的減壓閥。它宜由于介質(zhì)參數(shù)不高的蒸汽和空氣等潔凈介質(zhì)的管道上。不能用于液體的減壓。更不能用于含有固體顆粒介質(zhì)的管道上。因此。烏魯木齊電動球閥閥門生產(chǎn)商。新疆絲扣球閥價格</p><p style="text-indent:25px">烏魯木齊平衡閥生產(chǎn)廠家。烏魯木齊焊接球閥哪家好</p><p> ⑵球墨鑄鐵閥門耐蝕性較強(qiáng)，能在一定濃度的***、硝酸、***、酸性鹽中工作。但是不耐氟酸、強(qiáng)堿、鹽酸和三氯化鐵熱溶液的腐蝕。使用時要避免驟熱、驟冷，否則會破裂。⑶鎳鑄鐵閥門耐堿性能比灰鑄鐵、球墨鑄鐵閥門強(qiáng)；用于稀***、稀鹽酸和苛性堿中，鎳鑄鐵是一種理想的閥用材料。2.碳素鋼閥門碳素鋼閥門的耐蝕性能與灰鑄鐵相近，稍遜于灰鑄鐵。3.不銹鋼閥門不銹鋼閥門耐大氣性優(yōu)良，能耐硝酸和其它氧化性介質(zhì)，也能耐堿、水、鹽、有機(jī)酸及其它有機(jī)化合物的腐蝕。但不耐***、鹽酸等非氧化性酸的腐蝕，也不耐干燥的氯化氫、氧化性的氯化物和草酸、乳酸等有機(jī)酸。含鉬2%～4%的不銹鋼，如Cr18Ni12Mo2Ti等，其耐蝕性能比鉻鎳不銹鋼更為優(yōu)越，它在非氧化性酸和熱的有機(jī)酸、氯化物中的耐酸性能比鉻鎳不銹鋼好，抗孔蝕性也好。含鈦或鈮的不銹鋼對晶間腐蝕有較強(qiáng)的抗力。含高鉻、高鎳的不銹鋼，其耐蝕性能比普通不銹鋼更高，可用于處理***、***、混酸、亞***、有機(jī)酸、堿、鹽溶液、硫化氫等，甚至可用于某些濃度下的高溫場合。但不耐濃或熱的鹽酸、濕的氟、氯、溴、碘、王水等的腐蝕。4.銅閥門銅閥門對水、海水、多種鹽溶液、有機(jī)物有良好的耐蝕性能。烏魯木齊焊接球閥哪家好</p><p style="text-indent:25px">新疆遠(yuǎn)大通用閥門有限公司致力于機(jī)械及行業(yè)設(shè)備，是一家生產(chǎn)型的公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下閥門，，，深受客戶的喜愛。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造機(jī)械及行業(yè)設(shè)備良好品牌。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1558213.html</p></div></div></div></div></div><div id="gvxubs3" class="page-right 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