stuffing ring

Basic structure of the centrifugal pump is composed of six parts, namely: impeller, pump, pump shaft, bearing, seal ring, stuffing box.

离心泵的基本构造是由六部分组成的，分别是：叶轮，泵体，泵轴，轴承，密封环，填料函。

It has two stem sealing: one is stuffing box and another is toroidal sealing ring ( O-ring ) .

本阀阀杆密封分为两种形式: 一为填料密封;一为O型 密封环 密封.

Large stuffing box accommodates all packing arrangements, including live-loaded design and lantern ring type for severe services. Corrosion on steel components can usually be controlled by proper maintenance.

大型填料函可适应所有填料配置排列，包括适用于严酷应用环境的动负载结构和套环。适当的维修管理一般就可以控制住钢构件的锈蚀。