寧波需牢記填料改集式密封的這些安裝要領
常用(yong)的(de)密(mi)(mi)封(feng)型式(shi)(shi)主要有填(tian)(tian)料(liao)密(mi)(mi)封(feng)、機械密(mi)(mi)封(feng)等,填(tian)(tian)料(liao)密(mi)(mi)封(feng)。填(tian)(tian)料(liao)改集式(shi)(shi)密(mi)(mi)封(feng)是一(yi)種(zhong)較為原(yuan)始的(de)接(jie)觸式(shi)(shi)密(mi)(mi)封(feng),具有結(jie)構簡單(dan)、成本(ben)低(di)、更換簡便等優點(dian)(dian),由于這些優點(dian)(dian),因而在石油(you)工(gong)業(ye)...