BURKERT電磁閥，BURKERT電磁閥6519

有常(chang)閉(bi)(bi)型(xing)(xing)和(he)(he)常(chang)開(kai)(kai)型(xing)(xing)二(er)種。常(chang)閉(bi)(bi)型(xing)(xing)斷電(dian)(dian)時(shi)(shi)呈(cheng)關(guan)(guan)(guan)閉(bi)(bi)狀態，當(dang)線(xian)圈通(tong)電(dian)(dian)時(shi)(shi)產(chan)生(sheng)電(dian)(dian)磁力(li)(li)(li)，使(shi)(shi)(shi)動(dong)(dong)(dong)(dong)(dong)(dong)鐵(tie)芯(xin)克服彈(dan)簧(huang)(huang)力(li)(li)(li)同靜(jing)鐵(tie)芯(xin)吸合(he)直(zhi)接(jie)開(kai)(kai)啟(qi)閥(fa)(fa)(fa)(fa)(fa)，介質呈(cheng)通(tong)路；當(dang)線(xian)圈斷電(dian)(dian)時(shi)(shi)電(dian)(dian)磁力(li)(li)(li)消失(shi)，動(dong)(dong)(dong)(dong)(dong)(dong)鐵(tie)芯(xin)在(zai)(zai)(zai)彈(dan)簧(huang)(huang)力(li)(li)(li)的(de)作(zuo)(zuo)用(yong)(yong)下復位，直(zhi)接(jie)關(guan)(guan)(guan)閉(bi)(bi)閥(fa)(fa)(fa)(fa)(fa)口(kou)，介質不通(tong)。結(jie)構簡單，動(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)(zuo)可(ke)靠，在(zai)(zai)(zai)零壓(ya)差和(he)(he)微真空(kong)下正(zheng)常(chang)工作(zuo)(zuo)。常(chang)開(kai)(kai)型(xing)(xing)正(zheng)好相反。如小(xiao)于φ6流量通(tong)徑的(de)BURKERT電(dian)(dian)磁閥(fa)(fa)(fa)(fa)(fa)。 　　二(er)、分(fen)步(bu)直(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)式BURKERT電(dian)(dian)磁閥(fa)(fa)(fa)(fa)(fa) 　　BURKERT電(dian)(dian)磁閥(fa)(fa)(fa)(fa)(fa)采用(yong)(yong)次開(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)和(he)(he)二(er)次開(kai)(kai)閥(fa)(fa)(fa)(fa)(fa)連在(zai)(zai)(zai)體(ti)，主(zhu)閥(fa)(fa)(fa)(fa)(fa)和(he)(he)導閥(fa)(fa)(fa)(fa)(fa)分(fen)步(bu)使(shi)(shi)(shi)電(dian)(dian)磁力(li)(li)(li)和(he)(he)壓(ya)差直(zhi)接(jie)開(kai)(kai)啟(qi)主(zhu)閥(fa)(fa)(fa)(fa)(fa)口(kou)。當(dang)線(xian)圈通(tong)電(dian)(dian)時(shi)(shi)，產(chan)生(sheng)電(dian)(dian)磁力(li)(li)(li)使(shi)(shi)(shi)動(dong)(dong)(dong)(dong)(dong)(dong)鐵(tie)芯(xin)和(he)(he)靜(jing)鐵(tie)芯(xin)吸合(he)，導閥(fa)(fa)(fa)(fa)(fa)口(kou)開(kai)(kai)啟(qi)而(er)導閥(fa)(fa)(fa)(fa)(fa)口(kou)設在(zai)(zai)(zai)主(zhu)閥(fa)(fa)(fa)(fa)(fa)口(kou)上(shang)(shang)，且動(dong)(dong)(dong)(dong)(dong)(dong)鐵(tie)芯(xin)與主(zhu)閥(fa)(fa)(fa)(fa)(fa)芯(xin)連在(zai)(zai)(zai)起(qi)，此(ci)時(shi)(shi)主(zhu)閥(fa)(fa)(fa)(fa)(fa)上(shang)(shang)腔(qiang)的(de)壓(ya)力(li)(li)(li)通(tong)過導閥(fa)(fa)(fa)(fa)(fa)口(kou)卸(xie)荷(he)，在(zai)(zai)(zai)壓(ya)力(li)(li)(li)差和(he)(he)電(dian)(dian)磁力(li)(li)(li)的(de)同時(shi)(shi)作(zuo)(zuo)用(yong)(yong)下使(shi)(shi)(shi)主(zhu)閥(fa)(fa)(fa)(fa)(fa)芯(xin)向上(shang)(shang)運動(dong)(dong)(dong)(dong)(dong)(dong)，開(kai)(kai)啟(qi)主(zhu)閥(fa)(fa)(fa)(fa)(fa)介質流通(tong)。當(dang)線(xian)圈斷電(dian)(dian)時(shi)(shi)電(dian)(dian)磁力(li)(li)(li)消失(shi)，此(ci)時(shi)(shi)動(dong)(dong)(dong)(dong)(dong)(dong)鐵(tie)芯(xin)在(zai)(zai)(zai)自重(zhong)和(he)(he)彈(dan)簧(huang)(huang)力(li)(li)(li)的(de)作(zuo)(zuo)用(yong)(yong)下關(guan)(guan)(guan)閉(bi)(bi)導閥(fa)(fa)(fa)(fa)(fa)孔(kong)，此(ci)時(shi)(shi)介質在(zai)(zai)(zai)平衡孔(kong)中進入主(zhu)閥(fa)(fa)(fa)(fa)(fa)芯(xin)上(shang)(shang)腔(qiang)，使(shi)(shi)(shi)上(shang)(shang)腔(qiang)壓(ya)力(li)(li)(li)升高，此(ci)時(shi)(shi)在(zai)(zai)(zai)彈(dan)簧(huang)(huang)復位和(he)(he)壓(ya)力(li)(li)(li)的(de)作(zuo)(zuo)用(yong)(yong)下關(guan)(guan)(guan)閉(bi)(bi)主(zhu)閥(fa)(fa)(fa)(fa)(fa)，介質斷流。結(jie)構合(he)理，動(dong)(dong)(dong)(dong)(dong)(dong)作(zuo)(zuo)可(ke)靠，在(zai)(zai)(zai)零壓(ya)差時(shi)(shi)工作(zuo)(zuo)也可(ke)靠。如：ZQDF，ZS，2W等。 　

BURKERT電磁閥，BURKERT電磁閥6519　三、間接導式BURKERT電磁閥 　　該系列BURKERT電磁閥由導閥和主閥芯著形成通道組合而成；常閉型在未通電時，呈關閉狀態。當線圈通電時，產生的磁力使動鐵芯和靜鐵芯吸合，導閥口打開，介質流向出口，此時主閥芯上腔壓力減少，低于進口側的壓力，形成壓差克服彈簧阻力而隨之向上運動，達到開啟主閥口的目的，介質流通。當線圈斷電時，磁力消失，動鐵芯在彈簧力作用下復位關閉導口，此時介質從平衡孔流入，主閥芯上腔壓力增大，并在彈簧力的作用下向下運動，關閉主閥口。常開式原理正好相反。如：SLA，DF（φ15以上口徑），ZCZ等。
管路中(zhong)的流體(ti)必須(xu)和選(xuan)(xuan)用(yong)(yong)的BURKERT電(dian)磁(ci)閥系(xi)列型號中(zhong)標(biao)(biao)定的介(jie)質*。 　　流體(ti)的溫度(du)(du)必須(xu)小(xiao)于(yu)(yu)選(xuan)(xuan)用(yong)(yong)BURKERT電(dian)磁(ci)閥的標(biao)(biao)定溫度(du)(du)。 　　BURKERT電(dian)磁(ci)閥允許液體(ti)粘度(du)(du)般在(zai)20CST以下(xia)，大(da)于(yu)(yu)20CST應注(zhu)明。 　　工(gong)(gong)作(zuo)壓(ya)(ya)差，管路zui高壓(ya)(ya)差在(zai)小(xiao)于(yu)(yu)0.04MPa時應選(xuan)(xuan)用(yong)(yong)如ZS,2W,ZQDF,ZCM系(xi)列等直(zhi)動式和分步直(zhi)動式；zui低(di)工(gong)(gong)作(zuo)壓(ya)(ya)差大(da)于(yu)(yu)0.04MPa時可選(xuan)(xuan)用(yong)(yong)導式（壓(ya)(ya)差式）BURKERT電(dian)磁(ci)閥；zui高工(gong)(gong)作(zuo)壓(ya)(ya)差應小(xiao)于(yu)(yu)BURKERT電(dian)磁(ci)閥的zui大(da)標(biao)(biao)定壓(ya)(ya)力；般BURKERT電(dian)磁(ci)閥都是(shi)(shi)單向工(gong)(gong)作(zuo)，因此要注(zhu)意是(shi)(shi)否有(you)(you)反壓(ya)(ya)差，如有(you)(you)安裝止回閥。 　

　流(liu)體清潔度(du)不(bu)高(gao)時(shi)應(ying)在BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)前安(an)裝過(guo)濾器，般(ban)(ban)(ban)(ban)(ban)BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)對(dui)介質要(yao)(yao)求清潔度(du)要(yao)(yao)好。 　　注(zhu)意(yi)流(liu)量孔徑(jing)(jing)和(he)接管口(kou)徑(jing)(jing)；BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)般(ban)(ban)(ban)(ban)(ban)只有開(kai)關兩位(wei)控制(zhi)；條件(jian)允(yun)許請(qing)安(an)裝旁路管，便(bian)于(yu)維修(xiu)；有水錘現象時(shi)要(yao)(yao)定制(zhi)BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)的(de)開(kai)閉(bi)時(shi)間調節。 　　注(zhu)意(yi)環境溫度(du)對(dui)BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)的(de)影響 　　電(dian)(dian)源電(dian)(dian)流(liu)和(he)消(xiao)耗功率應(ying)根(gen)據(ju)輸出容量選(xuan)(xuan)(xuan)(xuan)(xuan)取(qu)(qu)，電(dian)(dian)源電(dian)(dian)壓般(ban)(ban)(ban)(ban)(ban)允(yun)許±10%左右(you)，必須(xu)注(zhu)意(yi)交流(liu)起動時(shi)VA值較高(gao)。 　　2、可(ke)靠性(xing) 　　BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)分(fen)為常閉(bi)和(he)常開(kai)二種；般(ban)(ban)(ban)(ban)(ban)選(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)常閉(bi)型(xing)，通電(dian)(dian)打開(kai)，斷電(dian)(dian)關閉(bi)；但在開(kai)啟時(shi)間很(hen)長(chang)關閉(bi)時(shi)很(hen)短(duan)時(shi)要(yao)(yao)選(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)常開(kai)型(xing)了。 　　壽命試(shi)(shi)驗(yan)，價格般(ban)(ban)(ban)(ban)(ban)屬(shu)于(yu)型(xing)式(shi)試(shi)(shi)驗(yan)項目，確切(qie)地(di)說我國還沒有BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)的(de)標(biao)準，因此選(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)價格時(shi)慎(shen)重。 　　動作時(shi)間很(hen)短(duan)頻率較高(gao)時(shi)般(ban)(ban)(ban)(ban)(ban)選(xuan)(xuan)(xuan)(xuan)(xuan)取(qu)(qu)直(zhi)動式(shi)，大(da)口(kou)徑(jing)(jing)選(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)快速(su)系列。 　　3、安(an)全性(xing) 　　般(ban)(ban)(ban)(ban)(ban)BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)不(bu)防水，在條件(jian)不(bu)允(yun)許時(shi)請(qing)選(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)防水型(xing)，價格可(ke)以定做(zuo)。 　　BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)的(de)zui高(gao)標(biao)定公(gong)稱(cheng)壓力定要(yao)(yao)超(chao)過(guo)管路內的(de)zui高(gao)壓力，否則使用(yong)(yong)(yong)壽命會縮短(duan)或產生其它意(yi)外情(qing)況。 　　有腐(fu)(fu)蝕性(xing)液體的(de)應(ying)選(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)全不(bu)銹鋼型(xing)，強腐(fu)(fu)蝕性(xing)流(liu)體宜選(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)塑料(liao)王（SLF）BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)。 　　爆炸性(xing)環境必須(xu)選(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)相應(ying)的(de)防爆產品。 　　4、經濟性(xing) 　　有很(hen)多BURKERT電(dian)(dian)磁(ci)(ci)閥(fa)(fa)可(ke)以通用(yong)(yong)(yong)，但在能(neng)滿足以上三點的(de)基礎上應(ying)選(xuan)(xuan)(xuan)(xuan)(xuan)用(yong)(yong)(yong)的(de)產品。