朔城需牢記填料改集式密封的這些安裝要領
常(chang)用的密(mi)(mi)(mi)封(feng)型式(shi)主(zhu)要有填料密(mi)(mi)(mi)封(feng)、機械密(mi)(mi)(mi)封(feng)等(deng),填料密(mi)(mi)(mi)封(feng)。填料改集式(shi)密(mi)(mi)(mi)封(feng)是(shi)一種較(jiao)為原(yuan)始(shi)的接觸式(shi)密(mi)(mi)(mi)封(feng),具有結構簡單、成本低、更換簡便等(deng)優(you)點(dian),由(you)于(yu)這(zhe)些優(you)點(dian),因而在石(shi)油(you)工(gong)業...