此(ci)零(ling)件(jian)(jian)是(shi)閥(fa)(fa)體(ti)，主(zhu)要(yao)加(jia)工(gong)(gong)(gong)面(mian)(mian)(mian)是(shi)外圓、內(nei)(nei)孔(kong)(kong)、端面(mian)(mian)(mian)、階臺孔(kong)(kong)、內(nei)(nei)螺紋和(he)溝槽(cao)等(deng)，而且加(jia)工(gong)(gong)(gong)內(nei)(nei)表(biao)(biao)面(mian)(mian)(mian)比(bi)外表(biao)(biao)面(mian)(mian)(mian)多，就帶來(lai)了許多困難：（1）孔(kong)(kong)加(jia)工(gong)(gong)(gong)是(shi)在(zai)零(ling)件(jian)(jian)的(de)(de)(de)內(nei)(nei)部是(shi)行，切削情(qing)況不(bu)易(yi)直接用眼睛來(lai)觀察；（2）切屑不(bu)易(yi)排出(chu)，冷卻液難以注入切削區域(yu)；（3）當加(jia)工(gong)(gong)(gong)時(shi)，壁(bi)厚比(bi)較(jiao)薄(bo)，加(jia)工(gong)(gong)(gong)時(shi)容易(yi)產生(sheng)變形；（4）內(nei)(nei)孔(kong)(kong)的(de)(de)(de)測量要(yao)比(bi)外圓難，尤其(qi)是(shi)小孔(kong)(kong)。就閥(fa)(fa)體(ti)零(ling)件(jian)(jian)來(lai)說：（1）該(gai)工(gong)(gong)(gong)件(jian)(jian)是(shi)以左(zuo)端面(mian)(mian)(mian)和(he)軸(zhou)線(xian)為(wei)基準，根(gen)據基面(mian)(mian)(mian)先行的(de)(de)(de)原則，首先一(yi)(yi)道(dao)工(gong)(gong)(gong)序應以右端面(mian)(mian)(mian)外圓定位(wei)加(jia)工(gong)(gong)(gong)左(zuo)端面(mian)(mian)(mian)及內(nei)(nei)孔(kong)(kong)。（2）因(yin)閥(fa)(fa)體(ti)零(ling)件(jian)(jian)的(de)(de)(de)壁(bi)厚較(jiao)薄(bo)，在(zai)各道(dao)工(gong)(gong)(gong)序夾(jia)持工(gong)(gong)(gong)件(jian)(jian)時(shi)應注意(yi)防止變形。（3）該(gai)工(gong)(gong)(gong)件(jian)(jian)內(nei)(nei)孔(kong)(kong)Φ20和(he)Φ35有同軸(zhou)度要(yao)求(qiu)，所以在(zai)加(jia)工(gong)(gong)(gong)時(shi)Φ20、Φ35應在(zai)一(yi)(yi)次裝夾(jia)內(nei)(nei)完(wan)成加(jia)工(gong)(gong)(gong)。（4）該(gai)工(gong)(gong)(gong)件(jian)(jian)螺紋孔(kong)(kong)4-M12對Φ35的(de)(de)(de)軸(zhou)線(xian)有位(wei)置度要(yao)求(qiu)，所以在(zai)加(jia)工(gong)(gong)(gong)4-M12螺紋孔(kong)(kong)時(shi)，應設(she)計(ji)符合的(de)(de)(de)鉆模，才能保證位(wei)置度的(de)(de)(de)要(yao)求(qiu)。浙(zhe)江克亞閥(fa)(fa)門有限公司致力于提供鑄鋼(gang)高(gao)平臺球閥(fa)(fa)設(she)備(bei)，竭誠為(wei)您設(she)備(bei)。四川德標高(gao)平臺法蘭球閥(fa)(fa)工(gong)(gong)(gong)作原理(li)

2000年(nian)之(zhi)前，我(wo)國擁有(you)2萬km長(chang)輸(shu)管(guan)線(xian)(xian)(xian)，只占全(quan)(quan)(quan)世界260萬km管(guan)線(xian)(xian)(xian)的(de)(de)(de)0.8%。全(quan)(quan)(quan)焊接(jie)閥(fa)(fa)(fa)體(ti)(ti)(ti)管(guan)線(xian)(xian)(xian)球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)無一例外地采用美國Cameron公(gong)(gong)司(si)(si)(si)(si)產(chan)品。2000年(nian)之(zhi)后，在國家(jia)關于開發西部，使(shi)用綠色能源的(de)(de)(de)政策指(zhi)導下(xia)(xia)，起動(dong)西氣(qi)東輸(shu)前頭工(gong)程，從新疆輪(lun)南至上(shang)海，全(quan)(quan)(quan)長(chang)4200km，管(guan)徑42″（1″＝25.4mm，下(xia)(xia)同），輸(shu)送壓力10MPa。其中全(quan)(quan)(quan)焊接(jie)閥(fa)(fa)(fa)體(ti)(ti)(ti)緊急切斷閥(fa)(fa)(fa)全(quan)(quan)(quan)部采購國外產(chan)品，分(fen)體(ti)(ti)(ti)式(shi)鍛(duan)鋼閥(fa)(fa)(fa)體(ti)(ti)(ti)管(guan)線(xian)(xian)(xian)球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)則由(you)上(shang)海耐萊斯(si)(si)·詹姆斯(si)(si)伯(bo)雷閥(fa)(fa)(fa)門(men)有(you)限公(gong)(gong)司(si)(si)(si)(si)供(gong)(gong)貨(huo)。與此(ci)同時，國家(jia)發改委提(ti)出《全(quan)(quan)(quan)焊接(jie)閥(fa)(fa)(fa)體(ti)(ti)(ti)管(guan)線(xian)(xian)(xian)球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)》國產(chan)化計劃。四川(chuan)自(zi)貢高壓閥(fa)(fa)(fa)門(men)股份有(you)限公(gong)(gong)司(si)(si)(si)(si)取得國家(jia)財政支助，從意大(da)利新比隆（NewoPignone）公(gong)(gong)司(si)(si)(si)(si)引(yin)進全(quan)(quan)(quan)套全(quan)(quan)(quan)焊接(jie)閥(fa)(fa)(fa)體(ti)(ti)(ti)管(guan)線(xian)(xian)(xian)球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)技術資料、工(gong)藝和(he)裝備(bei)，2003年(nian)試(shi)制成功(gong)一臺全(quan)(quan)(quan)焊接(jie)閥(fa)(fa)(fa)體(ti)(ti)(ti)管(guan)線(xian)(xian)(xian)球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)。上(shang)海耐萊斯(si)(si)·詹姆斯(si)(si)伯(bo)雷閥(fa)(fa)(fa)門(men)有(you)限公(gong)(gong)司(si)(si)(si)(si)在國家(jia)財政支助下(xia)(xia)，聯合高校，發揮(hui)地區優勢，自(zi)主(zhu)開發研(yan)制全(quan)(quan)(quan)焊接(jie)閥(fa)(fa)(fa)體(ti)(ti)(ti)管(guan)線(xian)(xian)(xian)球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)，于2005年(nian)試(shi)制成功(gong)筒狀和(he)球(qiu)(qiu)(qiu)狀的(de)(de)(de)閥(fa)(fa)(fa)體(ti)(ti)(ti)全(quan)(quan)(quan)焊接(jie)管(guan)線(xian)(xian)(xian)球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)，并擁有(you)自(zi)主(zhu)的(de)(de)(de)知識產(chan)權(quan)，可(ke)以提(ti)供(gong)(gong)Class600，DN800（NPS32）以下(xia)(xia)管(guan)線(xian)(xian)(xian)球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)，且在澀寧蘭復(fu)線(xian)(xian)(xian)上(shang)服役。福(fu)建高平臺電動(dong)球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)圖(tu)片氣(qi)動(dong)高平臺球(qiu)(qiu)(qiu)閥(fa)(fa)(fa)設備(bei)，就選浙(zhe)江克亞閥(fa)(fa)(fa)門(men)有(you)限公(gong)(gong)司(si)(si)(si)(si)，用戶的(de)(de)(de)信(xin)賴之(zhi)選，有(you)需要可(ke)以聯系我(wo)司(si)(si)(si)(si)哦！

判斷(duan)閥(fa)門(men)好壞的(de)(de)(de)參(can)考：閥(fa)門(men)所用的(de)(de)(de)材(cai)料是(shi)否(fou)合乎規(gui)定（輸送介質，工(gong)(gong)作(zuo)(zuo)環境）；外觀是(shi)否(fou)平(ping)(ping)整（油漆，外殼，銘牌(pai)的(de)(de)(de)辨認）；配件是(shi)否(fou)齊全（注脂口，排(pai)污口，排(pai)壓口，內單向(xiang)閥(fa)，絲堵，平(ping)(ping)壓旁通閥(fa)門(men)，自動注脂機）；配件安裝(zhuang)位(wei)置是(shi)否(fou)易于(yu)保養施工(gong)(gong)與調試；操作(zuo)(zuo)是(shi)否(fou)容易（與執(zhi)行器(qi)輸出扭力的(de)(de)(de)匹(pi)配，手輪(lun)的(de)(de)(de)大(da)小與位(wei)置）；功能是(shi)否(fou)能達到長期正常運轉。作(zuo)(zuo)為(wei)一名工(gong)(gong)程技術人員(yuan)，必須了(le)解(jie)和(he)掌(zhang)握工(gong)(gong)作(zuo)(zuo)中接觸的(de)(de)(de)設(she)(she)備(bei)(bei)(bei)，懂(dong)原理、懂(dong)結(jie)構、懂(dong)得(de)設(she)(she)備(bei)(bei)(bei)的(de)(de)(de)維修和(he)操作(zuo)(zuo)，才能勝(sheng)任自己崗位(wei)的(de)(de)(de)工(gong)(gong)作(zuo)(zuo)。輸氣管(guan)道相(xiang)關(guan)(guan)設(she)(she)備(bei)(bei)(bei)繁多，球閥(fa)在這些設(she)(she)備(bei)(bei)(bei)中屬于(yu)關(guan)(guan)鍵設(she)(she)備(bei)(bei)(bei)，要(yao)求管(guan)理人員(yuan)必須熟練掌(zhang)握相(xiang)關(guan)(guan)技術，在工(gong)(gong)作(zuo)(zuo)中不(bu)斷(duan)地總(zong)結(jie)，提(ti)高(gao)技術水平(ping)(ping)，為(wei)我國(guo)的(de)(de)(de)管(guan)道事業(ye)做出貢獻。

在管(guan)道工程中(zhong)，正確(que)選(xuan)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)是(shi)滿足應(ying)用(yong)要(yao)求的(de)(de)保證條件之一。如果(guo)對(dui)所(suo)(suo)應(ying)用(yong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)選(xuan)擇不(bu)當(dang)，不(bu)只(zhi)會(hui)影(ying)響應(ying)用(yong)，而且還會(hui)帶來不(bu)良后果(guo)或(huo)嚴重的(de)(de)損失，因(yin)(yin)此(ci)，在管(guan)道工程設計中(zhong)應(ying)正確(que)選(xuan)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)的(de)(de)義務(wu)環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)除應(ying)注(zhu)意管(guan)道參數外，尚應(ying)特別注(zhu)意其義務(wu)的(de)(de)環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)條件，由于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)中(zhong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)置(zhi)是(shi)一機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)設備，其義務(wu)狀(zhuang)態受其義務(wu)環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)影(ying)響很大。通常狀(zhuang)態下，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)所(suo)(suo)處義務(wu)環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)有(you)(you)(you)以(yi)下幾(ji)種：1室內(nei)裝(zhuang)置(zhi)或(huo)有(you)(you)(you)防(fang)護(hu)方式(shi)戶(hu)外應(ying)用(yong)；2戶(hu)外露天裝(zhuang)置(zhi)，有(you)(you)(you)風(feng)、砂、雨露、陽光等侵蝕(shi)；3具有(you)(you)(you)易燃、易爆(bao)氣體或(huo)粉塵環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)；4濕(shi)熱帶、干熱帶地區環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)；5管(guan)道介(jie)質溫度高達480℃以(yi)上；6環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)溫度低于－20℃以(yi)下；7易遭水淹或(huo)浸水中(zhong)；8具有(you)(you)(you)放射(she)性物質(核電(dian)(dian)(dian)(dian)(dian)(dian)(dian)站及放射(she)性物質試驗裝(zhuang)置(zhi))環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)；9艦(jian)船(chuan)(chuan)上或(huo)船(chuan)(chuan)塢碼頭(有(you)(you)(you)鹽霧、霉(mei)菌(jun)、潮濕(shi))的(de)(de)環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)；10具有(you)(you)(you)劇(ju)烈振動(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)場合；易于發生火災的(de)(de)場合；對(dui)于上述環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)中(zhong)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)，其電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)置(zhi)結構、材料和防(fang)護(hu)方式(shi)皆(jie)不(bu)同。因(yin)(yin)此(ci)，應(ying)依(yi)(yi)據上述義務(wu)環(huan)(huan)(huan)(huan)(huan)境(jing)(jing)(jing)選(xuan)擇相應(ying)的(de)(de)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)置(zhi)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)功能要(yao)求依(yi)(yi)據工程控制(zhi)(zhi)要(yao)求，對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)來講，其控制(zhi)(zhi)功能是(shi)由電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)置(zhi)來完(wan)成(cheng)的(de)(de)。應(ying)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)的(de)(de)宗旨，就是(shi)對(dui)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)的(de)(de)開、閉以(yi)及調節聯動(dong)(dong)(dong)(dong)(dong)(dong)完(wan)成(cheng)非人工的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣控制(zhi)(zhi)或(huo)計算(suan)機(ji)控制(zhi)(zhi)。氣動(dong)(dong)(dong)(dong)(dong)(dong)高平臺球閥(fa)(fa)(fa)(fa)(fa)設備，就選(xuan)浙(zhe)江克(ke)亞(ya)閥(fa)(fa)(fa)(fa)(fa)門(men)(men)有(you)(you)(you)限公司，讓您滿意，歡迎您的(de)(de)來電(dian)(dian)(dian)(dian)(dian)(dian)(dian)哦！

1、要(yao)對各類真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)閥(fa)(fa)門(men)(men)的(de)(de)(de)(de)(de)一(yi)般結構(gou)(gou)原理了解清楚。2、對于(yu)同一(yi)種(zhong)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)閥(fa)(fa)門(men)(men)要(yao)通過結構(gou)(gou)、性(xing)能(neng)、參(can)數(shu)(shu)、適用(yong)(yong)范圍、漏氣(qi)(qi)(qi)(qi)速(su)率、密封(feng)件材(cai)料(liao)，使(shi)用(yong)(yong)方法等綜合因素比較后選擇其閥(fa)(fa)門(men)(men)型號(hao)。3、真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)閥(fa)(fa)門(men)(men)的(de)(de)(de)(de)(de)驅動(dong)方式(shi)有(you)手動(dong)、電(dian)(dian)動(dong)、氣(qi)(qi)(qi)(qi)動(dong)三種(zhong)。采(cai)用(yong)(yong)那種(zhong)驅動(dong)方式(shi)的(de)(de)(de)(de)(de)閥(fa)(fa)門(men)(men)要(yao)從(cong)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)系(xi)統(tong)的(de)(de)(de)(de)(de)需要(yao)去考(kao)(kao)慮。4、在(zai)(zai)(zai)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)室上(shang)安(an)裝放(fang)氣(qi)(qi)(qi)(qi)閥(fa)(fa)門(men)(men)，要(yao)根據真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)室內(nei)氣(qi)(qi)(qi)(qi)體量的(de)(de)(de)(de)(de)多(duo)少，需要(yao)開啟(qi)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)室大(da)門(men)(men)的(de)(de)(de)(de)(de)時間(jian)長(chang)短，選擇放(fang)氣(qi)(qi)(qi)(qi)閥(fa)(fa)門(men)(men)的(de)(de)(de)(de)(de)型號(hao)。5、真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)閥(fa)(fa)門(men)(men)可(ke)以單獨使(shi)用(yong)(yong)，配置在(zai)(zai)(zai)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)室與(yu)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)泵之間(jian)或真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)室上(shang)。是一(yi)般的(de)(de)(de)(de)(de)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)系(xi)統(tong)所必(bi)須的(de)(de)(de)(de)(de)元件。但大(da)多(duo)數(shu)(shu)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)閥(fa)(fa)門(men)(men)是用(yong)(yong)在(zai)(zai)(zai)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)抽氣(qi)(qi)(qi)(qi)機組上(shang)。6、超高真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)閥(fa)(fa)門(men)(men)常用(yong)(yong)在(zai)(zai)(zai)超高真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)系(xi)統(tong)上(shang)。7、電(dian)(dian)磁真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)閥(fa)(fa)的(de)(de)(de)(de)(de)型式(shi)和基本參(can)數(shu)(shu)我國已有(you)行業標準(zhun)。8、真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)隔(ge)膜閥(fa)(fa)，由于(yu)結構(gou)(gou)簡單、體積小、重量輕、密封(feng)性(xing)能(neng)良(liang)好、適用(yong)(yong)于(yu)前級(ji)和預抽管道及溫(wen)度為-25℃～80℃的(de)(de)(de)(de)(de)非腐蝕氣(qi)(qi)(qi)(qi)體。9、玻璃真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)活塞，(又稱考(kao)(kao)克)多(duo)用(yong)(yong)于(yu)真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)測(ce)量的(de)(de)(de)(de)(de)校準(zhun)系(xi)統(tong)和玻璃真(zhen)(zhen)(zhen)(zhen)(zhen)空(kong)(kong)系(xi)統(tong)。浙江克亞閥(fa)(fa)門(men)(men)有(you)限公司是一(yi)家(jia)專業提(ti)供氣(qi)(qi)(qi)(qi)動(dong)高平臺球(qiu)閥(fa)(fa)設(she)備的(de)(de)(de)(de)(de)公司，有(you)想法的(de)(de)(de)(de)(de)不要(yao)錯過哦(e)！福(fu)建高平臺電(dian)(dian)動(dong)球(qiu)閥(fa)(fa)圖片

浙江克亞閥門有限公(gong)司是一家專(zhuan)業提供氣動高平臺(tai)(tai)球(qiu)閥設備的(de)公(gong)司。四(si)川德標高平臺(tai)(tai)法蘭球(qiu)閥工作原理(li)

球(qiu)(qiu)(qiu)(qiu)閥(fa)(fa)(fa)是(shi)(shi)(shi)(shi)由(you)旋塞(sai)閥(fa)(fa)(fa)演變而來(lai)，不同的是(shi)(shi)(shi)(shi)旋塞(sai)體(ti)是(shi)(shi)(shi)(shi)球(qiu)(qiu)(qiu)(qiu)體(ti)，有(you)圓形通(tong)孔(kong)或通(tong)道(dao)通(tong)過(guo)其軸線。當球(qiu)(qiu)(qiu)(qiu)旋轉90°時，在進、出口處應全部(bu)呈現(xian)球(qiu)(qiu)(qiu)(qiu)面，從而截斷流(liu)(liu)動。球(qiu)(qiu)(qiu)(qiu)閥(fa)(fa)(fa)只需要(yao)用(yong)(yong)旋轉90°的操(cao)作(zuo)和很小的轉動力(li)矩就能(neng)關閉嚴密。完全平(ping)(ping)等(deng)的閥(fa)(fa)(fa)體(ti)內腔(qiang)為介(jie)質(zhi)提供了阻(zu)力(li)很小、直(zhi)通(tong)的流(liu)(liu)道(dao)。通(tong)常(chang)認(ren)為球(qiu)(qiu)(qiu)(qiu)閥(fa)(fa)(fa)通(tong)常(chang)適(shi)宜直(zhi)接做(zuo)開閉使(shi)用(yong)(yong)，但近(jin)年來(lai)的發展已將球(qiu)(qiu)(qiu)(qiu)閥(fa)(fa)(fa)設計成使(shi)它具有(you)節(jie)流(liu)(liu)和控(kong)制流(liu)(liu)量的用(yong)(yong)途。球(qiu)(qiu)(qiu)(qiu)閥(fa)(fa)(fa)的主要(yao)特點是(shi)(shi)(shi)(shi)本身結構緊湊，易于(yu)操(cao)作(zuo)和維(wei)修，適(shi)用(yong)(yong)于(yu)水(shui)、溶劑(ji)、酸和天然氣等(deng)一般工作(zuo)介(jie)質(zhi)，而且(qie)還適(shi)用(yong)(yong)于(yu)工作(zuo)條(tiao)件惡劣的介(jie)質(zhi)，如氧氣、過(guo)氧化(hua)氫、甲烷和乙烯等(deng)。球(qiu)(qiu)(qiu)(qiu)閥(fa)(fa)(fa)閥(fa)(fa)(fa)體(ti)可以(yi)是(shi)(shi)(shi)(shi)整體(ti)的，也可以(yi)是(shi)(shi)(shi)(shi)組合(he)式的。四川德(de)標高平(ping)(ping)臺法(fa)蘭球(qiu)(qiu)(qiu)(qiu)閥(fa)(fa)(fa)工作(zuo)原(yuan)理

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