弯头应该用螺栓固定在湿井地面，并且设计成具有不需要任何螺栓、螺母或皮带即可连接泵设备的连接法兰的能力。
The elbow shall be bolted to the floor of the wet-well and be so designed as to receive the pump connecting flange without the need for any bolts, nuts or clamps.
另供应各种管道配件，如弯头、法兰等。
Another, flange supplying the various pipeline accessory, if elbow etc.
重新将安全阀软管接到底部法兰盖内的弯头上。
Reattach the relief valve hose to the elbow in the bottom flange cover.
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