石油、天然气工业用螺柱连接阀盖的钢制闸阀 阀杆的最小直径
                                                                                                                                                                                                                                   
|   公称 尺寸 DN  | 
  公 称 压 力 PN  | 
|||||||||
|   16  | 
  20  | 
  25  | 
  40  | 
  50  | 
  63  | 
  100  | 
  150、160  | 
  250、260  | 
  420  | 
|
|   阀 杆 的 最 小 直 径/mm  | 
||||||||||
|   25  | 
  14.00  | 
  15.59  | 
  15.59  | 
  15.59  | 
  15.59  | 
  15.59  | 
  15.59  | 
  18.77  | 
  18.77  | 
  18.77  | 
|   32  | 
  15.59  | 
  15.59  | 
  15.59  | 
  15.59  | 
  15.59  | 
  15.59  | 
  15.59  | 
  18.77  | 
  18.77  | 
  18.77  | 
|   40  | 
  17.17  | 
  17.17  | 
  18.00  | 
  18.00  | 
  18.77  | 
  18.77  | 
  18.77  | 
  21.87  | 
  21.87  | 
  21.87  | 
|   50  | 
  18.00  | 
  18.77  | 
  18.77  | 
  18.77  | 
  18.77  | 
  18.77  | 
  18.77  | 
  25.04  | 
  25.04  | 
  25.04  | 
|   65  | 
  18.77  | 
  18.77  | 
  18.77  | 
  18.77  | 
  18.77  | 
  21.87  | 
  21.87  | 
  28.22  | 
  28.22  | 
  28.22  | 
|   80  | 
  21.87  | 
  21.87  | 
  21.87  | 
  21.87  | 
  21.87  | 
  24.00  | 
  25.04  | 
  28.22  | 
  31.39  | 
  31.39  | 
|   100  | 
  24.00  | 
  25.04  | 
  25.04  | 
  25.04  | 
  25.04  | 
  26.00  | 
  28.22  | 
  31.39  | 
  34.47  | 
  34.47  | 
|   150  | 
  28.00  | 
  28.22  | 
  28.22  | 
  30.00  | 
  31.39  | 
  32.00  | 
  37.62  | 
  40.77  | 
  43.84  | 
  46.49  | 
|   200  | 
  31.39  | 
  31.39  | 
  32.00  | 
  34.00  | 
  34.47  | 
  38.00  | 
  40.77  | 
  46.94  | 
  53.24  | 
  59.54  | 
|   250  | 
  34.47  | 
  34.47  | 
  36.00  | 
  37.62  | 
  37.62  | 
  42.00  | 
  46.94  | 
  53.24  | 
  62.74  | 
  72.24  | 
|   300  | 
  37.62  | 
  37.62  | 
  38.00  | 
  40.00  | 
  40.77  | 
  46.00  | 
  50.14  | 
  56.44  | 
  69.14  | 
  81.84  | 
|   350  | 
  40.77  | 
  40.77  | 
  42.00  | 
  43.84  | 
  43.84  | 
  50.00  | 
  56.44  | 
  59.54  | 
  75.44  | 
  —  | 
|   400  | 
  43.84  | 
  43.84  | 
  46.00  | 
  46.00  | 
  46.94  | 
  55.00  | 
  59.54  | 
  62.74  | 
  75.44  | 
  —  | 
|   450  | 
  46.94  | 
  46.94  | 
  48.00  | 
  50.00  | 
  50.14  | 
  60.00  | 
  62.74  | 
  69.14  | 
  —  | 
  —  | 
|   500  | 
  50.00  | 
  50.14  | 
  50.14  | 
  52.00  | 
  53.24  | 
  60.00  | 
  69.14  | 
  75.44  | 
  —  | 
  —  | 
|   600  | 
  52.00  | 
  56.44  | 
  56.14  | 
  60.00  | 
  62.74  | 
  75.00  | 
  75.44  | 
  —  | 
  —  | 
  —  | 
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