Axis Guide轴套
Ball球、球芯
Ball seat密封圈
Blowdown Sealing Face启、阀件密封面
Body阀体
Bonnet阀盖
Disc阀瓣
Mut螺母
Screw螺栓
Sealing密封件
Spring弹簧
Stem阀杆
Stem Mut阀杆螺母
Stem seal填料
Wedge Disc闸板