吸入口法兰平面与工作口法兰平面相垂直。
The flange plane of the intake is perpendicular to the flange plane of the working opening.
所有设备口法兰及翼缘法兰螺栓应为双头螺栓。
All nozzle flange and girth flange bolts shall be of stud bolt type.
设备口法兰的类型、等级及端面应符合买方图纸或数据表的规定。
The type, rating and facing of nozzle flanges shall conform to those specified in Purchaser's drawing or data sheet.
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