在将旋转接头安装固定支撑前，先应该了解旋转接头的内部结构，以做为采取何种方式的依据。

Before the rotary joint is installed on the equipment, the inner structure hereof must be learned for installation basis.

S系列旋转接头是球面密封结构，自支撑、外部补偿设计。依靠弹簧推动壳体沿轴向向后移动起补偿密封磨损的作用，完成内部介质与外界空气的密封隔离。因此需要合理的安装方式及定期的维护保养确保产品在设备中的使用.

S series rotary joint uses the spherical sealing structure. It is a self-supporting type with sealing compensation design. The sealing function is realized by the spring force on the body to move reversely, wherein the working media is sealed and isolated from the atmosphere effectively. Therefore, reasonable installation and periodical maintenance are necessary for the successful performance of the rotary joint.

如图所示使用无油石墨轴承结构的旋转接头，使能在中心点上运转。

As shown in the sectional drawing, the rotary joint uses two carbon guides for self supporting and axial concentricity, with maximal guide separation.

当石墨密封环磨损时，由于弹簧力及介质压力的作用下，旋转接头的壳体会往后面移动，使密封面得到有效的补偿。

During abrasion, under the spring force and the media pressure, the rotary joint will move reversely to make the sealing surface compensated effectively.

备注：

Remarks:
SN（020-065）与SC（020-065）除密封面有正反之分，内部补偿机构结构相同  
SN(020-065) amd SC(020-065) have the same compensation structures, despite of different spherical sealing design (SN uses concave sealing design, while SC uses convex sealing design).
SN080/SC090/SC100除密封面有正反之分，内部补偿机构结构相同
SN080/SC090/SC100 have the same compensation structures, despite of different spherical sealing design (SN uses concave sealing design, while SC uses convex sealing design).
SC(125-200)内部补偿机构结构相同
SC(125-200) have the same compensation structures.