1) mechanical seal with outward leakage
外流式机械密封
2) attached mechanical sealing
外装式机械密封
1.
An attached mechanical sealing is used during pump shut down.
该密封装置采用负压密封原理解决砂泵在运转过程中的密封问题,用外装式机械密封作为停车密封,使砂泵在运转和停机时都能可靠地密封钻井液,无故障运转时间超过3 500 h。
3) mechanical seal with inward leakage
内流式机械密封
4) outside pressurized hydrostatic mechanical seal
外加压流体静压式机械密封
补充资料：外流
1.指人﹑财物等转移到外地或外国。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条