電磁閥電磁閥和全不銹鋼；對于強(qiáng)腐蝕的介 質(zhì)必須選用隔離膜片式。中性介質(zhì)，也宜選用銅合金為閥殼材料的電磁閥，否則，閥殼中常有銹屑脫落，尤其是動(dòng)作不頻繁的場合。氨用閥則不能采用銅材。
2、爆炸性環(huán)境：必須選用相應(yīng)防爆等級產(chǎn)品，露天安裝或粉塵多場合應(yīng)選用防水，防塵品種。
3、電磁閥公稱壓力應(yīng)超過管內(nèi)zui高工作壓力。
適用性：
1、介質(zhì)特性
1）質(zhì)氣，液態(tài)或混合狀態(tài)分別選用不同品種的電磁閥；
2）介質(zhì)溫度不同規(guī)格產(chǎn)品，否則線圈會(huì)燒掉，密封件老化，嚴(yán)重影響壽命命；
3）介質(zhì)粘度，通常在50cSt以下。若超過此值，通徑大于15mm時(shí)，用多功能電磁閥；通徑小于15mm時(shí)，用高粘度電磁閥。
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