Mechanical seal was easy to leak when the pump transported liquid hydrocarbon.
在泵送液态烃时，机械密封很容易泄漏。
2
The article further poses design thoughts of liquid charge pump which have not shaft seal contact.
进一步提出了轴封不接触泥浆灌注泵的设计思想。
3
The transportation of solid particles media pump for convection component wear-resistant materials used, if necessary, seal with the use of cleaner liquid rinse.