将三根附墙杆起吊到适当高度，首先用销轴将杆与标准节一端连接，然后安装到地脚螺栓连接板上。
Lift the 3 shaft adhered to wall to the suitable height, firstly, connect the shaft with one end of the standard section, then install on the connection plate of foundation bolt.
轴承每个这些杆是连接到主销的两端轴承。
Each of these rod bearings is attached to the ends of the kingpins.
弹赞定位销可保证蝶板不会因为蝶板重力作用下坠，还可在下阀杆端部设置调整块来保证蝶板位置固定。
Play great positioning pin ensures disc not because butterfly plate gravity drop, also can be installed in the valve stem end adjustment block to ensure that the butterfly plate fixed position.
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