4we6d6x/ofeg24n9k4選型 電磁閥選型首先應該依次遵循安全性，可靠性，適用性，經(jīng)濟性四大原則，其次是根據(jù)六個方面的現(xiàn)場工況（即管道參數(shù)、流體參數(shù)、壓力參數(shù)、電氣參數(shù)、動作方式、特殊要求進行選擇）。
選型依據(jù)：
1、根據(jù)管道參數(shù)選擇電磁閥的：通徑規(guī)格（即dn）、接口方式
1）按照現(xiàn)場管道內(nèi)徑尺寸或流量要求來確定通徑（dn）尺寸；
2）接口方式，一般>dn50要選擇法蘭接口，≤dn50則可根據(jù)用戶需要自由選擇。
2、根據(jù)流體參數(shù)選擇電磁閥的：材質(zhì)、溫度組
1）腐蝕性流體：宜選用耐腐蝕電磁閥和全不銹鋼；食用超凈流體：宜選用食品級不銹鋼材質(zhì)電磁閥；
2）高溫流體：要選擇采用耐高溫的電工材料和密封材料制造的電磁閥，而且要選擇活塞式結(jié)構(gòu)類型的；
3）流體狀態(tài)：大至有氣態(tài)，液態(tài)或混合狀態(tài)，特別是口徑大于dn25時一定要區(qū)分開來；
4）流體粘度：通常在50cst以下可任意選擇，若超過此值，則要選用高粘度電磁閥。 r900245465 4we6d6x/eg24n9k4/b08t06
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