The crimped head design, prevents solids from dislodging the seal face, allows the seal to withstand higher pressure and rotational speed and eliminates the metal shell from contacting the seal ring.

波纹式头部设计，防止固体颗粒从密封面上撞出，使得密封能够抵抗更高的压力和旋转速度，避免金属壳接触到密封环。

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In some applications a metal face-seal may be needed to keep foreign matter out.

在某些应用程序中的金属面密封，可能需要保持异物了。

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