ASCO角座閥,阿斯卡結構材質

ASCO電(dian)(dian)磁(ci)(ci)閥(fa)(fa)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)型(xing)(xing)參(can)數應(ying)該依次遵循安(an)(an)全性(xing)(xing)，可靠性(xing)(xing)，適(shi)用(yong)(yong)(yong)性(xing)(xing)，經濟性(xing)(xing)四大原 則，其次是(shi)根(gen)(gen)(gen)據(ju)(ju)六個方(fang)(fang)(fang)面(mian)的(de)(de)(de)(de)(de)(de)現場(chang)工況(kuang)（即管(guan)道參(can)數、流體(ti)參(can)數、壓(ya)(ya)力(li)(li)參(can)數、電(dian)(dian)氣(qi)參(can)數、動(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)方(fang)(fang)(fang)式、特殊(shu)要求(qiu)(qiu)進行(xing)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)）。　　選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)型(xing)(xing)依據(ju)(ju)：　　1、根(gen)(gen)(gen)據(ju)(ju)管(guan)道參(can)數選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)的(de)(de)(de)(de)(de)(de)：通徑(jing)規格（即DN）、接口(kou)方(fang)(fang)(fang)式　　1）按照現場(chang)管(guan)道內徑(jing)尺寸或流量(liang)要求(qiu)(qiu)來(lai)確定通徑(jing)（DN）尺寸；　　2）接口(kou)方(fang)(fang)(fang)式，般(ban)>DN50要選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)法蘭接口(kou)，≤DN50則可根(gen)(gen)(gen)據(ju)(ju)用(yong)(yong)(yong)戶(hu)需(xu)要自由選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)。　　2、根(gen)(gen)(gen)據(ju)(ju)流體(ti)參(can)數選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)的(de)(de)(de)(de)(de)(de)：材質、溫(wen)(wen)度組　　1）腐蝕(shi)性(xing)(xing)流體(ti)：宜(yi)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)耐腐蝕(shi)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)和全不銹(xiu)鋼；食(shi)用(yong)(yong)(yong)超(chao)凈(jing)流體(ti)：宜(yi)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)食(shi)品不銹(xiu)鋼材質電(dian)(dian)磁(ci)(ci)閥(fa)(fa)；　　2）高(gao)溫(wen)(wen)流體(ti)：要選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)采用(yong)(yong)(yong)耐高(gao)溫(wen)(wen)的(de)(de)(de)(de)(de)(de)電(dian)(dian)工材料和密封(feng)材料制造的(de)(de)(de)(de)(de)(de)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)，而且要選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)活塞式結構類型(xing)(xing)的(de)(de)(de)(de)(de)(de)；　　3）流體(ti)狀態(tai)(tai)：大有(you)氣(qi)態(tai)(tai)，液(ye)態(tai)(tai)或混合(he)狀態(tai)(tai)，特別是(shi)口(kou)徑(jing)大于DN25時(shi)(shi)(shi)(shi)(shi)定要區分(fen)開來(lai)；　　4）流體(ti)粘(zhan)(zhan)度：通常(chang)在(zai)50cSt以下可任意(yi)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)，若(ruo)超(chao)過此值，則要選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)高(gao)粘(zhan)(zhan)度電(dian)(dian)磁(ci)(ci)閥(fa)(fa)。　　3、根(gen)(gen)(gen)據(ju)(ju)壓(ya)(ya)力(li)(li)參(can)數選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)的(de)(de)(de)(de)(de)(de)：原理和結構品種(zhong)　　1）公稱壓(ya)(ya)力(li)(li)：這(zhe)個參(can)數與其它通用(yong)(yong)(yong)閥(fa)(fa)門的(de)(de)(de)(de)(de)(de)含義(yi)是(shi)樣的(de)(de)(de)(de)(de)(de)，是(shi)根(gen)(gen)(gen)據(ju)(ju)管(guan)道公稱壓(ya)(ya)力(li)(li)來(lai)定；　　2）工作(zuo)壓(ya)(ya)力(li)(li)：如(ru)果工作(zuo)壓(ya)(ya)力(li)(li)低則必須選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)直動(dong)(dong)(dong)(dong)(dong)(dong)或分(fen)步直動(dong)(dong)(dong)(dong)(dong)(dong)式原理；低工作(zuo)壓(ya)(ya)差在(zai)0.04Mpa以上時(shi)(shi)(shi)(shi)(shi)直動(dong)(dong)(dong)(dong)(dong)(dong)式、分(fen)步直動(dong)(dong)(dong)(dong)(dong)(dong)式、導式均(jun)可選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)。　　4、電(dian)(dian)氣(qi)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)：電(dian)(dian)壓(ya)(ya)規格應(ying)盡(jin)量(liang)優選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)AC220V、DC24較(jiao)為方(fang)(fang)(fang)便。　　5、根(gen)(gen)(gen)據(ju)(ju)持續(xu)工作(zuo)時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)(jian)長(chang)短(duan)來(lai)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)：常(chang)閉、常(chang)開、或可持續(xu)通電(dian)(dian)　　1）當(dang)電(dian)(dian)磁(ci)(ci)閥(fa)(fa)需(xu)要長(chang)時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)(jian)開啟(qi)，并且持續(xu)的(de)(de)(de)(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)(jian)多于關閉的(de)(de)(de)(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)(jian)應(ying)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan) 用(yong)(yong)(yong)常(chang)開型(xing)(xing)；　　2）要是(shi)開啟(qi)的(de)(de)(de)(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)(jian)短(duan)或開和關的(de)(de)(de)(de)(de)(de)時(shi)(shi)(shi)(shi)(shi)間(jian)(jian)(jian)(jian)不多時(shi)(shi)(shi)(shi)(shi)，則選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)常(chang)閉型(xing)(xing)；　　3）但是(shi)有(you)些(xie)用(yong)(yong)(yong)于安(an)(an)全保護(hu)的(de)(de)(de)(de)(de)(de)工況(kuang)，如(ru)爐、窯(yao)火焰(yan)監測，則不能(neng)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)常(chang)開的(de)(de)(de)(de)(de)(de)，應(ying)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)可長(chang)期通電(dian)(dian)型(xing)(xing)。分(fen)為直動(dong)(dong)(dong)(dong)(dong)(dong)式，導式，手動(dong)(dong)(dong)(dong)(dong)(dong)復位(wei)閥(fa)(fa)。　　6、根(gen)(gen)(gen)據(ju)(ju)環(huan)境(jing)要求(qiu)(qiu)選(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)(xuan)擇(ze)(ze)輔助功能(neng)：防(fang)爆、止(zhi)回、手動(dong)(dong)(dong)(dong)(dong)(dong)、防(fang)水霧、水淋、潛水。

ASCO角座閥,阿斯卡結構材質       ASCO電磁(ci)閥安全性

1、腐(fu)蝕(shi)性介質(zhi)：宜選(xuan)用(yong)塑料王電磁(ci)閥(fa)和(he)全(quan)不銹鋼；對于(yu)強(qiang)腐(fu)蝕(shi)的介 質(zhi)必(bi)(bi)須(xu)選(xuan)用(yong)隔離(li)膜片式。中性介質(zhi)，也宜選(xuan)用(yong)銅合(he)金為閥(fa)殼(ke)材料的電磁(ci)閥(fa)，否則，閥(fa)殼(ke)中常(chang)有銹屑脫落，尤(you)其是動(dong)作(zuo)不頻繁(fan)的場合(he)。氨用(yong)閥(fa)則不能采用(yong)銅材。　　2、爆(bao)炸性環境：必(bi)(bi)須(xu)選(xuan)用(yong)相應防(fang)爆(bao)等產品，露天安(an)裝(zhuang)或粉塵多場合(he)應選(xuan)用(yong)防(fang)水，防(fang)塵品種。　　3、電磁(ci)閥(fa)公稱壓(ya)力應超過管內高工(gong)作(zuo)壓(ya)力。

ASCO電磁閥適用性

1、介(jie)(jie)(jie)(jie)質(zhi)(zhi)(zhi)特(te)(te)性(xing)　　1）質(zhi)(zhi)(zhi)氣，液態(tai)或(huo)(huo)混合狀態(tai)分(fen)別選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)不(bu)同(tong)品(pin)種(zhong)的(de)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥；　　2）介(jie)(jie)(jie)(jie)質(zhi)(zhi)(zhi)溫(wen)度(du)(du)(du)(du)(du)不(bu)同(tong)規格產品(pin)，否(fou)則線圈會燒掉，密(mi)封件(jian)老化，嚴(yan)重影響壽(shou)命(ming)命(ming)；　　3）介(jie)(jie)(jie)(jie)質(zhi)(zhi)(zhi)粘度(du)(du)(du)(du)(du)，通(tong)(tong)常在(zai)(zai)(zai)50cSt以(yi)下。若超(chao)過(guo)此值，通(tong)(tong)徑大于(yu)(yu)(yu)15mm時，用(yong)(yong)多功能電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥；通(tong)(tong)徑小于(yu)(yu)(yu)15mm時，用(yong)(yong)高粘度(du)(du)(du)(du)(du)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥。　　4）介(jie)(jie)(jie)(jie)質(zhi)(zhi)(zhi)清潔(jie)度(du)(du)(du)(du)(du)不(bu)高時都(dou)應(ying)在(zai)(zai)(zai)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥前配(pei)裝反沖過(guo)濾閥，壓(ya)(ya)力(li)低時，可選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)直(zhi)動(dong)膜(mo)片式(shi)(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥；　　5）介(jie)(jie)(jie)(jie)質(zhi)(zhi)(zhi)若是定向流(liu)(liu)通(tong)(tong)，且不(bu)允(yun)(yun)許倒流(liu)(liu)，需用(yong)(yong)雙(shuang)向流(liu)(liu)通(tong)(tong)；　　6）介(jie)(jie)(jie)(jie)質(zhi)(zhi)(zhi)溫(wen)度(du)(du)(du)(du)(du)應(ying)選(xuan)(xuan)(xuan)(xuan)在(zai)(zai)(zai)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥允(yun)(yun)許范圍(wei)之內。　　2、管道參數　　1）根(gen)(gen)據(ju)介(jie)(jie)(jie)(jie)質(zhi)(zhi)(zhi)流(liu)(liu)向要求及(ji)管道連接(jie)(jie)方(fang)式(shi)(shi)選(xuan)(xuan)(xuan)(xuan)擇閥門(men)通(tong)(tong)口及(ji)型(xing)號；　　2）根(gen)(gen)據(ju)流(liu)(liu)量和閥門(men)Kv值選(xuan)(xuan)(xuan)(xuan)定公稱通(tong)(tong)徑，也可選(xuan)(xuan)(xuan)(xuan)同(tong)管道內徑；　　3）工(gong)作(zuo)壓(ya)(ya)差(cha)：低工(gong)作(zuo)壓(ya)(ya)差(cha)在(zai)(zai)(zai)0.04Mpa以(yi)上是可選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)間接(jie)(jie)導(dao)式(shi)(shi)；低工(gong)作(zuo)壓(ya)(ya)差(cha)接(jie)(jie)近或(huo)(huo)小于(yu)(yu)(yu)零的(de)必須(xu)(xu)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)直(zhi)動(dong)式(shi)(shi)或(huo)(huo)分(fen)步直(zhi)接(jie)(jie)式(shi)(shi)。　　3、環境條件(jian)　　1）環境的(de)高和低溫(wen)度(du)(du)(du)(du)(du)應(ying)選(xuan)(xuan)(xuan)(xuan)在(zai)(zai)(zai)允(yun)(yun)許范圍(wei)之內；　　2）環境中相對濕度(du)(du)(du)(du)(du)高及(ji)有水(shui)滴雨淋等場合，應(ying)選(xuan)(xuan)(xuan)(xuan)防水(shui)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥；　　3）環境中經常有振動(dong)，顛(dian)簸和沖擊等場合應(ying)選(xuan)(xuan)(xuan)(xuan)特(te)(te)殊(shu)品(pin)種(zhong)，例如(ru)船(chuan)用(yong)(yong)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥；　　4）在(zai)(zai)(zai)有腐蝕(shi)性(xing)或(huo)(huo)爆炸性(xing)環境中的(de)使(shi)用(yong)(yong)應(ying)優(you)根(gen)(gen)據(ju)安全性(xing)要求選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)耐(nai)發蝕(shi)型(xing)；　　5）環境空(kong)間若受(shou)限制，需選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)多功能電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥，因其省去了旁路及(ji)三(san)只(zhi)手(shou)動(dong)閥且便于(yu)(yu)(yu)在(zai)(zai)(zai)線維修。　　4、電(dian)(dian)(dian)源(yuan)(yuan)(yuan)條件(jian)　　1）根(gen)(gen)據(ju)供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)種(zhong)類，分(fen)別選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)交流(liu)(liu)和直(zhi)流(liu)(liu)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥。般(ban)來說交流(liu)(liu)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)取用(yong)(yong)方(fang)便；　　2）電(dian)(dian)(dian)壓(ya)(ya)規格用(yong)(yong)盡量優(you)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)AC220V.DC24V；　　3）電(dian)(dian)(dian)源(yuan)(yuan)(yuan)電(dian)(dian)(dian)壓(ya)(ya)波(bo)動(dong)通(tong)(tong)常交流(liu)(liu)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)+%10%.-15%，直(zhi)流(liu)(liu)允(yun)(yun)許±%10左右，如(ru)若超(chao)差(cha)，須(xu)(xu)采取穩壓(ya)(ya)措施；　　4）應(ying)根(gen)(gen)據(ju)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)容量選(xuan)(xuan)(xuan)(xuan)擇額定電(dian)(dian)(dian)流(liu)(liu)和消耗功率。須(xu)(xu)注意(yi)交流(liu)(liu)起動(dong)時VA值較高，在(zai)(zai)(zai)容量不(bu)足時應(ying)優(you)選(xuan)(xuan)(xuan)(xuan)用(yong)(yong)間接(jie)(jie)導(dao)式(shi)(shi)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥。　　5.控(kong)制精(jing)度(du)(du)(du)(du)(du)