ED圈是一种比O形密封圈密封效果更好的工业轴用密封件。

常用于快速高压管道接头密封等相关用途。

常用材料有丁青橡胶、氟橡胶等，其硬度为85－90邵氏硬度。

ED ring is an industrial shaft seal with better sealing effect than O-ring.

Commonly used for quick high-pressure pipeline joint sealing and other related purposes.

Commonly used materials are nitrile rubber, fluorine rubber, etc., whose hardness is 85-90 Shore hardness.