BURKERT寶德2030系列氣動隔膜閥
BURKERT寶德2030系列氣動隔膜閥結(jié)構(gòu)特點和作用原理;　　
2.隔膜閥與其它閥門zui大的區(qū)別在于：采用無填料函的構(gòu)造；橡膠隔膜可使流道內(nèi)的腐蝕性介質(zhì)與所有驅(qū)動部件處于*隔離的狀態(tài)，從而杜了通常閥門的“跑、冒、滴、漏”等弊端。 　　3.由于隔膜閥的流道平滑，流阻小，故而可獲得較大的流量。 　　4.視膠隔膜閥的閥體內(nèi)腔表面視復(fù)有廳供選擇的多種橡膠。因此具有的耐腐蝕的特點。 　　5.由于密封件為富有彈性的橡膠隔膜。因此還具有較好的密封性和zui小的關(guān)閉力。 　　6.本閥由閥體、閥蓋、閥瓣、閥桿、隔膜和其它驅(qū)動零件等組成。 　　7.閥門的啟閉是依靠旋轉(zhuǎn)手輪而達(dá)到的。隔膜閥在閥蓋上端標(biāo)有可窺見閥門處啟或閉位置的顯示色別，以指示閥門的啟閉行程。當(dāng)順時針放置手輪時，手輪即下移，閥瓣隨之帶動隔膜下降使通路截斷；反之則閥門即開啟，色別隨之顯露。 　　8.隔膜閥采用標(biāo)準(zhǔn)：按照GB12239的規(guī)定，并符合BS5156的要求。
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