廣河需牢記填料改集式密封的這些安裝要領
常用(yong)的密(mi)(mi)(mi)封(feng)型(xing)式(shi)主要(yao)有填(tian)(tian)料密(mi)(mi)(mi)封(feng)、機械密(mi)(mi)(mi)封(feng)等,填(tian)(tian)料密(mi)(mi)(mi)封(feng)。填(tian)(tian)料改集式(shi)密(mi)(mi)(mi)封(feng)是一(yi)種較為原(yuan)始的接觸式(shi)密(mi)(mi)(mi)封(feng),具有結構(gou)簡單、成本低、更換簡便等優(you)(you)點,由于這(zhe)些優(you)(you)點,因而在石(shi)油工業(ye)...