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淺(qian)析電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)眼(yan)(yan)鏡(jing)(jing)(jing)閥(fa)(fa)(fa)(fa)的(de)使用與(yu)維護方法注意(yi)事(shi)項(xiang)眼(yan)(yan)鏡(jing)(jing)(jing)閥(fa)(fa)(fa)(fa)是(shi)一(yi)種手(shou)(shou)、電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)或(huo)氣、液(ye)(ye)動(dong)(dong)(dong)(dong)(dong)(dong)切斷氣體(ti)介質的(de)閘板(ban)閥(fa)(fa)(fa)(fa)，一(yi)般分為(wei)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)眼(yan)(yan)鏡(jing)(jing)(jing)閥(fa)(fa)(fa)(fa)、液(ye)(ye)動(dong)(dong)(dong)(dong)(dong)(dong)眼(yan)(yan)鏡(jing)(jing)(jing)閥(fa)(fa)(fa)(fa)、氣動(dong)(dong)(dong)(dong)(dong)(dong)眼(yan)(yan)鏡(jing)(jing)(jing)閥(fa)(fa)(fa)(fa)、封(feng)閉式插(cha)板(ban)閥(fa)(fa)(fa)(fa)、電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)敞開(kai)(kai)(kai)(kai)式眼(yan)(yan)鏡(jing)(jing)(jing)閥(fa)(fa)(fa)(fa)。眼(yan)(yan)鏡(jing)(jing)(jing)閥(fa)(fa)(fa)(fa)由左、右閥(fa)(fa)(fa)(fa)體(ti)、伸縮機構、扇形閥(fa)(fa)(fa)(fa)板(ban)及驅動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)板(ban)的(de)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)推(tui)桿Ⅰ和夾緊(jin)、松(song)開(kai)(kai)(kai)(kai)的(de)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)推(tui)桿Ⅱ組成。電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)眼(yan)(yan)鏡(jing)(jing)(jing)閥(fa)(fa)(fa)(fa)共有三個(ge)驅動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)，其中(zhong)有兩(liang)個(ge)手(shou)(shou)動(dong)(dong)(dong)(dong)(dong)(dong)夾緊(jin)或(huo)松(song)開(kai)(kai)(kai)(kai)裝(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)，一(yi)個(ge)為(wei)使閘板(ban)開(kai)(kai)(kai)(kai)通或(huo)者關(guan)閉的(de)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)，在開(kai)(kai)(kai)(kai)或(huo)關(guan)閘板(ban)中(zhong)，首(shou)先松(song)開(kai)(kai)(kai)(kai)兩(liang)個(ge)手(shou)(shou)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)，而后再啟動(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)，以達到閘板(ban)開(kai)(kai)(kai)(kai)或(huo)關(guan)的(de)目的(de)(特別注意(yi)：兩(liang)個(ge)手(shou)(shou)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi)不(bu)松(song)開(kai)(kai)(kai)(kai)，不(bu)得開(kai)(kai)(kai)(kai)啟電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)(zhuang)(zhuang)置(zhi)(zhi))...

液動均(jun)(jun)(jun)壓(ya)(ya)(ya)放散閥(fa)(fa)適用(yong)(yong)于高(gao)(gao)爐工程煤氣(qi)均(jun)(jun)(jun)壓(ya)(ya)(ya)放散系統(tong)，是一種(zhong)密(mi)(mi)閉型閥(fa)(fa)門，RGP745Y液動放散閥(fa)(fa)-均(jun)(jun)(jun)壓(ya)(ya)(ya)放散閥(fa)(fa)采(cai)(cai)用(yong)(yong)液壓(ya)(ya)(ya)驅動，油壓(ya)(ya)(ya)10-20mpa,啟閉時閥(fa)(fa)≤5S，采(cai)(cai)用(yong)(yong)內開盤(pan)式(shi)和金(jin)屬(shu)密(mi)(mi)封(feng)(feng)和橡膠密(mi)(mi)封(feng)(feng)的(de)(de)(de)雙重密(mi)(mi)封(feng)(feng)結(jie)構，幫密(mi)(mi)封(feng)(feng)可靠(kao)，密(mi)(mi)封(feng)(feng)件表面(mian)堆(dui)焊合金(jin)，耐磨性好，故可用(yong)(yong)于臟煤氣(qi)及其它含粉塵氣(qi)體。高(gao)(gao)爐系統(tong)中，普遍(bian)用(yong)(yong)均(jun)(jun)(jun)壓(ya)(ya)(ya)閥(fa)(fa)以均(jun)(jun)(jun)衡爐體及大(da)小鐘之(zhi)間的(de)(de)(de)壓(ya)(ya)(ya)力。目前，我國大(da)部分高(gao)(gao)爐上仍在沿用(yong)(yong)六十年代的(de)(de)(de)盤(pan)式(shi)均(jun)(jun)(jun)壓(ya)(ya)(ya)閥(fa)(fa)，這種(zhong)結(jie)構的(de)(de)(de)閥(fa)(fa)門體積大(da)，笨(ben)重，而且(qie)結(jie)構松散，這給用(yong)(yong)戶的(de)(de)(de)安(an)裝、使用(yong)(yong)和更換帶來的(de)(de)(de)不(bu)便，為了改變這種(zhong)狀況，我...

爐(lu)頂(ding)(ding)放(fang)散閥(fa)(fa)(fa)(fa)是(shi)(shi)為(wei)(wei)了(le)(le)在(zai)高(gao)(gao)(gao)爐(lu)休(xiu)(xiu)風(feng)時(shi)，能(neng)迅(xun)速地(di)將煤(mei)氣(qi)(qi)(qi)(qi)排(pai)入(ru)大氣(qi)(qi)(qi)(qi)中而設(she)置的(de)(de)。為(wei)(wei)了(le)(le)安全(quan)，煤(mei)氣(qi)(qi)(qi)(qi)放(fang)散閥(fa)(fa)(fa)(fa)都(dou)設(she)置在(zai)煤(mei)氣(qi)(qi)(qi)(qi)上升(sheng)管的(de)(de)頂(ding)(ding)部、重力(li)除塵器的(de)(de)上部及頂(ding)(ding)部等(deng)，當(dang)高(gao)(gao)(gao)爐(lu)休(xiu)(xiu)風(feng)、復風(feng)或開爐(lu)時(shi)，打開放(fang)散閥(fa)(fa)(fa)(fa)并(bing)通入(ru)蒸汽可(ke)將煤(mei)氣(qi)(qi)(qi)(qi)驅入(ru)大氣(qi)(qi)(qi)(qi)中。這樣(yang)可(ke)以(yi)確保高(gao)(gao)(gao)爐(lu)煤(mei)氣(qi)(qi)(qi)(qi)區域的(de)(de)人(ren)員與設(she)備安全(quan)。當(dang)然，高(gao)(gao)(gao)爐(lu)爐(lu)頂(ding)(ding)放(fang)散閥(fa)(fa)(fa)(fa)還承擔了(le)(le)高(gao)(gao)(gao)爐(lu)緊急休(xiu)(xiu)風(feng)或爐(lu)內壓力(li)急劇增加時(shi)，迅(xun)速將高(gao)(gao)(gao)爐(lu)煤(mei)氣(qi)(qi)(qi)(qi)排(pai)入(ru)大氣(qi)(qi)(qi)(qi)的(de)(de)任務。對煤(mei)氣(qi)(qi)(qi)(qi)放(fang)散閥(fa)(fa)(fa)(fa)的(de)(de)要求是(shi)(shi)操作(zuo)可(ke)靠、密封性(xing)好(hao)，放(fang)散時(shi)產(chan)生的(de)(de)噪音小。爐(lu)頂(ding)(ding)放(fang)散閥(fa)(fa)(fa)(fa)按開閉(bi)形(xing)式(shi)(shi)可(ke)分為(wei)(wei)垂直(zhi)開啟式(shi)(shi)、外(wai)開式(shi)(shi)、內開式(shi)(shi)等(deng)，按驅動方式(shi)(shi)可(ke)分為(wei)(wei)電機驅動與液(ye)...

手動(dong)啟(qi)閉(bi)(bi)機(ji)其實是一(yi)種(zhong)用(yong)(yong)人(ren)力操作的(de)(de)(de)平面閘(zha)門啟(qi)閉(bi)(bi)機(ji)設備。它具有(you)自鎖功能,閘(zha)門可(ke)(ke)停留在(zai)任何位置。并且(qie)配有(you)防盜嘴及扳手,具有(you)防盜水(shui)功能.手搖啟(qi)閉(bi)(bi)機(ji)具有(you)轉(zhuan)向(xiang)變速快，手搖啟(qi)動(dong)。手動(dong)啟(qi)閉(bi)(bi)機(ji)經常(chang)進行必(bi)要的(de)(de)(de)維(wei)護作業(ye)可(ke)(ke)以減少(shao)磨損，消除隱(yin)患和故障，保持設備始終(zhong)處于良好的(de)(de)(de)技(ji)術狀況，以延(yan)長使(shi)用(yong)(yong)壽命，減少(shao)運行費用(yong)(yong)，確保安全可(ke)(ke)靠地運行。維(wei)修保養(yang)內容技(ji)術：包括“清潔、緊固、調整、潤(run)滑”八字作業(ye)。清潔是針對(dui)啟(qi)閉(bi)(bi)機(ji)的(de)(de)(de)外表、內部及制動(dong)輪圓周面、電器(qi)接點、電磁鐵(tie)吸(xi)合接觸面和周圍環境，定期進行清潔。啟(qi)閉(bi)(bi)機(ji)房內外門窗一(yi)...

手動(dong)啟閉(bi)機(ji)是用(yong)于操作門葉的(de)(de)(de)移動(dong)，達到(dao)開啟，關(guan)閉(bi)孔口的(de)(de)(de)目的(de)(de)(de)的(de)(de)(de)設備。在(zai)水(shui)(shui)利(li)水(shui)(shui)電(dian)工程中(zhong)應用(yong)廣泛(fan)。主要分為螺(luo)桿(gan)(gan)式，卷(juan)揚式，液壓(ya)等(deng)(deng)多(duo)種類型。其中(zhong)以螺(luo)桿(gan)(gan)式，卷(juan)揚式應用(yong)。啟閉(bi)機(ji)的(de)(de)(de)作用(yong)：操作門葉的(de)(de)(de)移動(dong)。類型：螺(luo)桿(gan)(gan)式、卷(juan)揚式、液壓(ya)式。結構：電(dian)機(ji)、機(ji)架、啟閉(bi)機(ji)、防護罩等(deng)(deng)!應用(yong)領(ling)域:水(shui)(shui)利(li)、水(shui)(shui)電(dian)工程。手動(dong)啟閉(bi)機(ji)用(yong)于各類大型給排(pai)水(shui)(shui)、水(shui)(shui)利(li)水(shui)(shui)電(dian)工程。用(yong)于控制(zhi)各類大、中(zhong)型鑄鐵(tie)閘(zha)(zha)門及鋼制(zhi)閘(zha)(zha)門的(de)(de)(de)升降達到(dao)開啟與關(guan)閉(bi)的(de)(de)(de)目的(de)(de)(de)。手動(dong)啟閉(bi)機(ji)安裝注(zhu)意(yi)事項：1、首(shou)要把手動(dong)液壓(ya)啟閉(bi)機(ji)放(fang)于預訂位置(zhi)。用(yong)一個(ge)限位盤(pan)套在(zai)液壓(ya)上，將液壓(ya)...

電動高溫蝶閥為了滿足高溫的要(yao)求(qiu)(qiu)，必需要(yao)滿足以(yi)下(xia)幾方面的要(yao)求(qiu)(qiu)：1、閥體材料(liao)(liao)閥門(men)設計執行標(biao)準為ASMEB16134。按該標(biao)準中的壓力(li)-溫度表(biao)計算得(de)到的閥門(men)常溫下(xia)的壓力(li)等級數,就是設計基準,并(bing)以(yi)此來計算zui小壁厚。在(zai)設計過程(cheng)中,閥體材料(liao)(liao)也選ASMEB16134標(biao)準規定的材料(liao)(liao),并(bing)且(qie)材料(liao)(liao)的適用溫度高于(yu)閥門(men)工況zui高溫度。經(jing)過查閱(yue)了大量(liang)國內外類似工況的閥門(men)設備(bei)材料(liao)(liao)使(shi)用情(qing)況,結合(he)對(dui)高溫材料(liao)(liao)的使(shi)用經(jing)驗,選擇(ze)了性(xing)價比較(jiao)高的304H作(zuo)為閥體材料(liao)(liao)。此材料(liao)(liao)可減小蠕變對(dui)材料(liao)(liao)的影響。2、閥桿材料(liao)(liao)根(gen)據...

偏(pian)心半(ban)球閥(fa)(fa)是一種比(bi)較新型的(de)(de)球閥(fa)(fa)類(lei)別(bie)，它有著自(zi)身結構所*的(de)(de)一些*性，如開關(guan)無摩(mo)擦，密(mi)封不易(yi)磨損，啟閉(bi)力矩小(xiao)。這樣可減小(xiao)所配(pei)執(zhi)行器的(de)(de)規(gui)格。配(pei)以(yi)多(duo)回轉電動(dong)執(zhi)行機構，可實現對介質(zhi)的(de)(de)調節和嚴(yan)密(mi)切(qie)斷。廣泛適用于石油、化工(gong)、城市給排(pai)水等要求嚴(yan)格切(qie)斷的(de)(de)工(gong)況。偏(pian)心半(ban)球閥(fa)(fa)使用注(zhu)意(yi)事項A、開啟過(guo)程(cheng)1在(zai)關(guan)閉(bi)位置，球體受閥(fa)(fa)桿(gan)的(de)(de)[wiki]機械[/wiki]施壓作用，緊壓在(zai)閥(fa)(fa)座(zuo)上。2當(dang)逆時針轉動(dong)手輪時，閥(fa)(fa)桿(gan)則反(fan)向運動(dong)，其底部(bu)角形平面使球體脫開閥(fa)(fa)座(zuo)。3閥(fa)(fa)桿(gan)繼(ji)續提升，并與閥(fa)(fa)桿(gan)螺旋槽內的(de)(de)導銷(xiao)相互(hu)作用，使球體開...

兩路(lu)輸(shu)(shu)送閥(fa)(fa)(fa)主(zhu)要(yao)由(you)(you)左、右閥(fa)(fa)(fa)體，旋轉(zhuan)閥(fa)(fa)(fa)盤(pan)(pan)(pan)(pan)，調節裝(zhuang)置(zhi)，密封(feng)面(mian)(mian)及(ji)定位(wei)(wei)凸輪等部件組成。手(shou)(shou)動(dong)閃(shan)動(dong)閥(fa)(fa)(fa)人工手(shou)(shou)操(cao)作手(shou)(shou)輪帶(dai)(dai)動(dong)蝸(gua)輪附驅動(dong)操(cao)作桿(gan)，閥(fa)(fa)(fa)盤(pan)(pan)(pan)(pan)一起(qi)動(dong)作，使閥(fa)(fa)(fa)處于直通或支路(lu)位(wei)(wei)置(zhi)，刻度盤(pan)(pan)(pan)(pan)反饋(kui)閥(fa)(fa)(fa)盤(pan)(pan)(pan)(pan)位(wei)(wei)置(zhi);當驅動(dong)裝(zhuang)置(zhi)得到指令動(dong)作時(shi)，帶(dai)(dai)動(dong)操(cao)縱桿(gan)，閥(fa)(fa)(fa)盤(pan)(pan)(pan)(pan)一起(qi)動(dong)作，使閥(fa)(fa)(fa)處于直通或支路(lu)位(wei)(wei)置(zhi)，同(tong)時(shi)反饋(kui)位(wei)(wei)置(zhi)信號，定位(wei)(wei)凸輪機構在閥(fa)(fa)(fa)盤(pan)(pan)(pan)(pan)到位(wei)(wei)時(shi)，動(dong)作電氣開關(guan)，反饋(kui)信號。兩路(lu)輸(shu)(shu)送閥(fa)(fa)(fa)，內部換向采用(yong)(yong)旋轉(zhuan)閥(fa)(fa)(fa)盤(pan)(pan)(pan)(pan)，手(shou)(shou)動(dong)閃(shan)動(dong)閥(fa)(fa)(fa)由(you)(you)調壓裝(zhuang)置(zhi)控制閥(fa)(fa)(fa)盤(pan)(pan)(pan)(pan)與(yu)密封(feng)面(mian)(mian)的(de)吻合，閥(fa)(fa)(fa)盤(pan)(pan)(pan)(pan)外形采用(yong)(yong)刀口形式，以便在運動(dong)中切除(chu)密封(feng)面(mian)(mian)上的(de)附著物，保證(zheng)密封(feng)性能，該閥(fa)(fa)(fa)其結...

手動(dong)啟(qi)閉機(ji)是(shi)一(yi)種采(cai)用于(yu)人力操作的(de)(de)平面閘門(men)(men)啟(qi)閉機(ji)設(she)備。它(ta)具有(you)自鎖功(gong)能，閘門(men)(men)可停留在(zai)任何(he)位(wei)置。并(bing)且配有(you)防(fang)盜嘴(zui)及扳手，具有(you)防(fang)盜水功(gong)能。螺桿啟(qi)閉機(ji)具有(you)轉向變(bian)速快手搖(yao)啟(qi)動(dong)。搖(yao)動(dong)輕巧啟(qi)閉靈活等(deng)(deng)優點(dian)。手動(dong)啟(qi)閉機(ji)的(de)(de)結構由機(ji)殼、機(ji)蓋、支(zhi)架、螺母(mu)、螺桿、大、小傘齒輪、壓力軸承、手搖(yao)柄等(deng)(deng)組成。具體規格有(you)1T-5T。本廠(chang)是(shi)研(yan)發、生(sheng)產(chan)、銷(xiao)售啟(qi)閉機(ji)、閘門(men)(men)的(de)(de)綜合型(xing)廠(chang)家(jia)，是(shi)融設(she)計、鑄造、機(ji)加工(gong)、組裝為(wei)一(yi)體的(de)(de)專業生(sheng)產(chan)型(xing)企業。主要產(chan)品為(wei)水利(li)用閘門(men)(men)、啟(qi)閉機(ji)、工(gong)程橡膠等(deng)(deng)。該類產(chan)品適用于(yu)各種水利(li)、電力建(jian)設(she)、城(cheng)市給排水...

爐頂放散閥由(you)閥體(ti)、閥蓋和(he)(he)(he)驅(qu)動(dong)(dong)裝(zhuang)置(zhi)部(bu)分組(zu)(zu)成(cheng)。閥體(ti)由(you)閥座(zuo)、中(zhong)殼和(he)(he)(he)下殼組(zu)(zu)成(cheng)。閥和(he)(he)(he)閥蓋的密(mi)(mi)(mi)封(feng)面(mian)堆焊硬質合(he)金(jin)，并且在(zai)閥座(zuo)密(mi)(mi)(mi)封(feng)面(mian)上面(mian)加工有梯形槽，安裝(zhuang)有密(mi)(mi)(mi)封(feng)圈(quan)，實現(xian)軟、硬雙重(zhong)密(mi)(mi)(mi)封(feng)，密(mi)(mi)(mi)封(feng)可靠。閥蓋的啟閉裝(zhuang)置(zhi)由(you)大、小(xiao)轉(zhuan)(zhuan)(zhuan)臂(bei)(bei)(bei)及(ji)其(qi)支(zhi)座(zuo)和(he)(he)(he)二者之間的連(lian)(lian)接板(ban)等(deng)組(zu)(zu)成(cheng)，閥蓋與大轉(zhuan)(zhuan)(zhuan)臂(bei)(bei)(bei)鉸(jiao)(jiao)鏈(lian)(lian)連(lian)(lian)接，大轉(zhuan)(zhuan)(zhuan)臂(bei)(bei)(bei)及(ji)其(qi)大支(zhi)座(zuo)鉸(jiao)(jiao)鏈(lian)(lian)連(lian)(lian)接，小(xiao)轉(zhuan)(zhuan)(zhuan)臂(bei)(bei)(bei)及(ji)其(qi)小(xiao)支(zhi)座(zuo)鉸(jiao)(jiao)鏈(lian)(lian)連(lian)(lian)接，大轉(zhuan)(zhuan)(zhuan)臂(bei)(bei)(bei)和(he)(he)(he)小(xiao)轉(zhuan)(zhuan)(zhuan)臂(bei)(bei)(bei)均與連(lian)(lian)接板(ban)鉸(jiao)(jiao)鏈(lian)(lian)連(lian)(lian)接。由(you)小(xiao)轉(zhuan)(zhuan)(zhuan)臂(bei)(bei)(bei)連(lian)(lian)接驅(qu)動(dong)(dong)裝(zhuang)置(zhi)。由(you)小(xiao)轉(zhuan)(zhuan)(zhuan)臂(bei)(bei)(bei)連(lian)(lian)接的驅(qu)動(dong)(dong)裝(zhuang)置(zhi)可采用電(dian)動(dong)(dong)裝(zhuang)置(zhi)或液(ye)動(dong)(dong)裝(zhuang)置(zhi)。啟動(dong)(dong)動(dong)(dong)力小(xiao)，運轉(zhuan)(zhuan)(zhuan)快(kuai)速靈活(huo)，在(zai)啟閉過程中(zhong)，煤氣對閥蓋密(mi)(mi)(mi)封(feng)面(mian)的沖刷時...

氣(qi)動(dong)刀型(xing)閘(zha)(zha)(zha)閥(fa)(fa)具有結構(gou)簡單緊(jin)湊、設計合理、輕(qing)(qing)型(xing)節材，密封(feng)可(ke)(ke)靠、操作(zuo)輕(qing)(qing)便靈活(huo)、體(ti)積小、通道(dao)流(liu)暢(chang)、流(liu)阻小、重(zhong)量(liang)輕(qing)(qing)、易安裝、易拆(chai)卸等(deng)優(you)點，可(ke)(ke)在工(gong)作(zuo)壓(ya)力(li)1.0MPa-2.5MPa，使用溫度-29-650℃情況下正(zheng)常工(gong)作(zuo)。刀型(xing)閘(zha)(zha)(zha)閥(fa)(fa)其閘(zha)(zha)(zha)板(ban)具有剪切功能，可(ke)(ke)刮除密封(feng)面上(shang)的(de)粘(zhan)著(zhu)物，自動(dong)清除雜物，不(bu)銹鋼閘(zha)(zha)(zha)板(ban)可(ke)(ke)防止腐蝕引起(qi)的(de)密封(feng)泄漏。超薄型(xing)的(de)刀閘(zha)(zha)(zha)閥(fa)(fa)以其體(ti)積小、流(liu)阻小、重(zhong)量(liang)輕(qing)(qing)、易安裝、易拆(chai)卸等(deng)優(you)點*解決了(le)普通閘(zha)(zha)(zha)閥(fa)(fa)、平板(ban)閘(zha)(zha)(zha)閥(fa)(fa)、球閥(fa)(fa)、截止閥(fa)(fa)、調節閥(fa)(fa)、蝶閥(fa)(fa)等(deng)類閥(fa)(fa)門的(de)流(liu)阻大、重(zhong)量(liang)大、安裝難(nan)、占地面積大等(deng)的(de)疑難(nan)...

偏(pian)心半球(qiu)(qiu)閥(fa)在(zai)外觀結(jie)構(gou)(gou)上(shang)分為兩種：1、上(shang)裝(zhuang)(zhuang)式(shi)：主要針對(dui)chong蝕(shi)(shi)磨損非(fei)常(chang)嚴(yan)重的(de)(de)(de)(de)介質，上(shang)裝(zhuang)(zhuang)結(jie)構(gou)(gou)在(zai)被(bei)損啟閉件的(de)(de)(de)(de)更換維修(xiu)是非(fei)常(chang)方便(bian)，無須(xu)將整臺閥(fa)門(men)從(cong)管(guan)道上(shang)拆下(xia)，大大的(de)(de)(de)(de)節(jie)省(sheng)了維修(xiu)時間和(he)成(cheng)本。2、側裝(zhuang)(zhuang)式(shi)：側裝(zhuang)(zhuang)式(shi)結(jie)構(gou)(gou)緊湊、閥(fa)門(men)質量輕(qing)，適(shi)用(yong)于(yu)(yu)對(dui)閥(fa)門(men)安裝(zhuang)(zhuang)空(kong)間有要求的(de)(de)(de)(de)場合。因堆焊不同合金（或組(zu)合球(qiu)(qiu)）雙金屬(shu)密(mi)封副的(de)(de)(de)(de)選配(pei)可以(yi)用(yong)于(yu)(yu)耐(nai)磨、耐(nai)腐(fu)蝕(shi)(shi)、耐(nai)高(gao)溫且要求嚴(yan)格(ge)密(mi)封的(de)(de)(de)(de)工況。上(shang)裝(zhuang)(zhuang)式(shi)偏(pian)心半球(qiu)(qiu)閥(fa)因為其特殊的(de)(de)(de)(de)組(zu)合結(jie)構(gou)(gou)，所以(yi)應用(yong)范圍(wei)也(ye)比較廣(guang)。1、通用(yong)閥(fa)：規格(ge)型(xing)號DN40－1600。適(shi)用(yong)于(yu)(yu)污水處(chu)理(li)、紙漿(jiang)、城市采(cai)暖...