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諾冠(guan)NORGREN電(dian)磁(ci)閥(fa)(fa)是(shi)(shi)流(liu)(liu)體(ti)輸送(song)系(xi)統中的控制(zhi)部件(jian),具有(you)(you)截止、調(diao)節(jie)、導(dao)流(liu)(liu)、防止逆流(liu)(liu)、穩壓(ya)(ya)(ya)、分流(liu)(liu)或溢流(liu)(liu)泄壓(ya)(ya)(ya)等功能(neng)。用(yong)于(yu)(yu)(yu)流(liu)(liu)體(ti)控制(zhi)系(xi)統的閥(fa)(fa)門,從總(zong)(zong)線簡單的截止閥(fa)(fa)到極為復(fu)雜的自控系(xi)統中所用(yong)的各種閥(fa)(fa)門,其(qi)品種和(he)(he)規(gui)格相當(dang)繁多。閥(fa)(fa)門可(ke)用(yong)于(yu)(yu)(yu)控制(zhi)空氣、水(shui)、蒸汽、各種腐蝕性(xing)介(jie)(jie)質、泥漿、油品、液態金(jin)屬和(he)(he)放射性(xing)介(jie)(jie)質等各種類型流(liu)(liu)體(ti)的流(liu)(liu)動。諾冠(guan)NORGREN電(dian)磁(ci)閥(fa)(fa)工作(zuo)壓(ya)(ya)(ya)差(cha),管(guan)路總(zong)(zong)線高壓(ya)(ya)(ya)差(cha)在(zai)小于(yu)(yu)(yu)0.04MPa時應(ying)選(xuan)用(yong)如(ru)ZS,2W,ZQDF,ZCM系(xi)列(lie)等直(zhi)動式(shi)和(he)(he)分步直(zhi)動式(shi);總(zong)(zong)線低工作(zuo)壓(ya)(ya)(ya)差(cha)大(da)于(yu)(yu)(yu)0.04MPa時可(ke)選(xuan)用(yong)先導(dao)式(shi)(壓(ya)(ya)(ya)差(cha)式(shi))電(dian)磁(ci)閥(fa)(fa);總(zong)(zong)線高工作(zuo)壓(ya)(ya)(ya)差(cha)應(ying)小于(yu)(yu)(yu)電(dian)磁(ci)閥(fa)(fa)的總(zong)(zong)線大(da)壓(ya)(ya)(ya)力;一(yi)(yi)般電(dian)磁(ci)閥(fa)(fa)都是(shi)(shi)單向工作(zuo),因(yin)此要(yao)注意是(shi)(shi)否有(you)(you)反壓(ya)(ya)(ya)差(cha),如(ru)有(you)(you)安裝(zhuang)止回(hui)閥(fa)(fa)。流(liu)(liu)體(ti)清(qing)潔(jie)度不高時應(ying)在(zai)電(dian)磁(ci)閥(fa)(fa)前安裝(zhuang)過濾器,一(yi)(yi)般電(dian)磁(ci)閥(fa)(fa)對介(jie)(jie)質要(yao)求清(qing)潔(jie)度要(yao)好(hao)。注意流(liu)(liu)量(liang)孔徑和(he)(he)接管(guan)口徑;諾冠(guan)NORGREN電(dian)磁(ci)閥(fa)(fa)一(yi)(yi)般只有(you)(you)開關(guan)兩位控制(zhi);條件(jian)允(yun)許(xu)請安裝(zhuang)旁(pang)路管(guan),便于(yu)(yu)(yu)維(wei)修;有(you)(you)水(shui)錘現象時要(yao)定制(zhi)電(dian)磁(ci)閥(fa)(fa)的開閉時間調(diao)節(jie)。
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