六合需牢記填料改集式密封的這些安裝要領
常(chang)用的密(mi)封(feng)(feng)型(xing)式(shi)主要有填(tian)料密(mi)封(feng)(feng)、機械密(mi)封(feng)(feng)等(deng)(deng),填(tian)料密(mi)封(feng)(feng)。填(tian)料改集式(shi)密(mi)封(feng)(feng)是(shi)一種較為原(yuan)始的接(jie)觸式(shi)密(mi)封(feng)(feng),具(ju)有結構簡單、成本低、更換(huan)簡便(bian)等(deng)(deng)優(you)點(dian)(dian),由于這些優(you)點(dian)(dian),因而在石油(you)工(gong)業...