管路法兰与泵口要同心，偏差不能超过法兰螺栓孔尺寸公差。
As a general rule, piping flanges should be concentric to pump nozzles to within the flange bolt hole clearance tolerance.
阀门也可以配置法兰螺栓孔，用于贯穿式螺栓，但不能穿过阀腔区域。
Valves can also be furnished with flange bolt holes drilled for through bolting, except in the chest area.
注意！严禁用减速机输出传动法兰上的螺栓孔起吊减速机。
Caution: it is prohibited to lift the gear reducer with bolt holes on output drive flange.
在打螺栓孔的时候是不可以把螺栓孔打在有大型法兰焊口的地方的。
When a bolt is not to play in a large flange bolt hole welding place.
法兰上非强制螺栓孔的有限距离偏差应该为2毫米。
Limited distance deviation of the optional bolt hole on flange shall be 2mm.
如果操作装置的安装孔与阀门法兰孔没有对应上，就要把锁定螺栓退回，旋转手轮式的螺栓孔对准为止。
If the operator mounting holes do not line up with the valve flange holes, the stop screw (s) should be backed off and handwheel turned until holes are aligned.
特殊样式为爆破片周边开螺栓孔用法兰对夹样式。需与制造方协商。
Special style for bursting disc surrounding open bolt hole flange to clamp style. With the method of manufacturing agreement.
设计了能在高辐射环境下工作的、全自动检查核电站反应堆压力壳连接处法兰面主螺栓孔螺纹表面缺陷的设备，解决了自动小车的设备承载和准确定位问题。
To inspect the defects on the screw hole surfaces of nuclear reactor pressure vessel in nuclear power station, an automatic moving table was designed to carry sophisticated inspecting devices.
法兰螺栓口中心圆的直径的容许偏差及法兰相邻两孔极限容许偏差的应小于0.6毫米。
Permissible deviation of bolt hole circle diameter on flange and permissible limited deviation of two adjacent holes on flange shall be less than 0.6mm.
凹形法兰和凸形法兰均设有供输送管伸入的中心通孔，凹形法兰和凸形法兰之间通过紧固螺栓联接。
The concave flange and the convex flange are provided with central pylomes for the conveying pipes to extend into; the concave flange is connected with the convex flange by the binding bolts.
凹形法兰和凸形法兰均设有供输送管伸入的中心通孔，凹形法兰和凸形法兰之间通过紧固螺栓联接。
The concave flange and the convex flange are provided with central pylomes for the conveying pipes to extend into; the concave flange is connected with the convex flange by the binding bolts.
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