A bush is fitted into the bolt hole in such a manner as to prevent the bolt hole from establishing communication between the plurality of oil passages.
衬套以防止螺栓孔在数个油道之间形成连通的方式安装到所述螺栓孔中。
The SB series stuffing box cover combine the functions of wear plate and stuffing box into a one-piece replacement unit. One bolt holds the slip fitted stuffing box in place.
填料箱压盖将密封与填料箱的功能融为一个可更换的整体，一支螺栓安装在与填料箱相对应的中开面上。
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