• iwapọ oniru ati dinku ifẹsẹtẹ
• itutu agbaiye / lubrication lati yiyi epo jia ti gbigbe
• jia konge helical ati ọpa ti a ṣe nipasẹ ohun elo 8Cr2Ni4WA.
• oniru asiwaju ẹrọ (o jẹ ti omi idalẹnu omi, oruka idalẹnu epo ati ẹṣẹ labyrinth) lati daabobo iyapa ti iyaworan emulsion ati epo jia.