紧凑法兰尺寸之所以减小，是由于减小了密封件的直径，这将会减小密封面的截面。
The reason why reducing the size of a compact flange, as a result of reduced diameter seals, which will reduce the sealing surface of the section.
根据优化结果进行生产，成功地生产了直径与高度比为10的法兰铸件，避免了缩孔缺陷，保证了铸件的质量。
According to the optimal results, the flange casting with the ratio of diameter and height of 10 was produced successfully, the shrinkage defect was avoided, the quality of the castings was ensured.
介绍真空设备法兰采用大直径O形环橡胶自紧式密封（不用螺栓和螺母）的设计计算及其应用效果。
The design calculation of the large O ring rubber self energized seal (without bolt and nut )used for the vacuum equipment and its application results are introduced.
异径管也叫大小头，两端管口直径不同，用于连接不同直径的管子或法兰进行变径。
Different-diameter pipe size head, also called tube diameter at different, used to connect different diameter of pipe or flange diameter changes on.
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.
由于新工艺不需立车，为特大直径法兰的制造开辟了新途径。
This develops a new way for manufacturing large flange because the capacity limitation of vertical lathe size will be unneccesary to be considered.
在阀门完全关闭状态下，阀杆在连接法兰顶端上方需高出至少相当于阀杆直径两倍的长度。
With the valve in the fully closed position the stem length shall protrude a distance of at least twice that of the stem diameter above the top of the mounting flange.
在阀门完全关闭状态下，阀杆在连接法兰顶端上方需高出至少相当于阀杆直径两倍的长度。
With the valve in the fully closed position the stem length shall protrude a distance of at least twice that of the stem diameter above the top of the mounting flange.
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