Vertical three-screw pump adopts double seal mechanical seal and framework oil seal, no leakage.

立式三螺杆泵采用机械密封加骨架油封双重密封方式，无泄露。

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The structure principle and improved fitting process of imported new type hub framework oil seal (EQ153) are introduced.

介绍了我国引进的新型轮毂骨架油封(EQ153)的结构原理与改进后装配工艺。

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Imported axletree and framework oil seal assures the liability of rotary precision and airproof, and reduces the rate of troubles.

进口的轴承和骨架油封，保证了运转精度和密封的可靠性，降低了故障率。

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There was a new ringed structure on the driven pan to push back the oil and we also used single framework with one O ring instead of double framework to seal the oil.

在提前器从动盘上设计了一个挡油环形结构，并将原来的双骨架密封结构改为单骨架结构加O型圈密封结构。

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There was a new ringed structure on the driven pan to push back the oil and we also used single framework with one O ring instead of double framework to seal the oil.

在提前器从动盘上设计了一个挡油环形结构，并将原来的双骨架密封结构改为单骨架结构加O型圈密封结构。

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