賀德克二通閥WS08ZR-01-C-N-24DG

電磁閥選型首先應(yīng)該依次遵循性，可靠性，適用性，經(jīng)濟(jì)性四大原 則，其次是根據(jù)六個(gè)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(dòng)作方式、特殊要求進(jìn)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(jí)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(shí)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。

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