组成
Form
主要部件
Main components
动环、静环、冷却装置和压紧弹簧（视具体设备而定）。
Moving ring, static ring, cooling device and compression spring (depending on the specific equipment).
辅助密封件
Auxiliary Seals
密封圈（有O形、X形、U型、楔形、矩形柔性石墨、PTFE包覆橡胶O圈等）。
Sealing rings (O-shaped, X-shaped, U-shaped, wedge-shaped, rectangular flexible graphite, PTFE-coated rubber O-ring, etc.).
弹力补偿机构
Elastic Compensation Mechanism
弹簧、推环。
Spring, push ring.
弹簧座及键或各种螺钉。
Spring seat and keys or various screws.
分类
classification
分为单端面、双端面；平衡型、非平衡型；任意旋向、固定旋向……
It can be divided into single end face and double end face; balanced and non-balanced; arbitrary and fixed rotation...