对夹式止回阀 铜制对夹旋启式止回阀及铜制对夹蝶式止回阀阀体的最小壁厚
|   公称 尺寸 DN  | 
   公  称  压  力  PN  | 
 |||||||||||||||
|   10  | 
   16  | 
   25  | 
   40  | 
   63  | 
   100  | 
   160  | 
   250  | 
   320  | 
   400  | 
   20  | 
   50  | 
   110  | 
   150  | 
   260  | 
   420  | 
 |
|   阀体的最小壁厚/mm  | 
 ||||||||||||||||
|   50  | 
   6.5  | 
   7.9  | 
   8.8  | 
   9.3  | 
   10.0  | 
   11.2  | 
   15.8  | 
   19.1  | 
   19.9  | 
   21.3  | 
   8.6  | 
   9.7  | 
   11.2  | 
   19.1  | 
   19.1  | 
   22.4  | 
 
|   65  | 
   7.3  | 
   8.7  | 
   10.0  | 
   10.7  | 
   11.4  | 
   11.9  | 
   18.0  | 
   22.4  | 
   22.9  | 
   24.2  | 
   9.7  | 
   11.2  | 
   11.9  | 
   22.4  | 
   22.4  | 
   25.4  | 
 
|   80  | 
   7.8  | 
   9.4  | 
   10.7  | 
   11.4  | 
   12.1  | 
   12.7  | 
   19.1  | 
   23.9  | 
   26.0  | 
   28.8  | 
   10.4  | 
   11.9  | 
   12.7  | 
   19.1  | 
   23.9  | 
   30.2  | 
 
|   100  | 
   8.4  | 
   10.3  | 
   11.5  | 
   12.2  | 
   13.4  | 
   16.0  | 
   21.3  | 
   28.7  | 
   30.9  | 
   34.1  | 
   11.2  | 
   12.7  | 
   16.0  | 
   21.3  | 
   28.7  | 
   35.8  | 
 
|   125  | 
   9.0  | 
   11.2  | 
   11.9  | 
   13.2  | 
   15.0  | 
   17.4  | 
   23.5  | 
   33.4  | 
   36.3  | 
   40.2  | 
   11.5  | 
   14.1  | 
   17.4  | 
   23.5  | 
   33.4  | 
   42.2  | 
 
|   150  | 
   10.0  | 
   11.9  | 
   12.6  | 
   14.6  | 
   16.7  | 
   19.1  | 
   26.2  | 
   38.1  | 
   41.5  | 
   46.2  | 
   11.9  | 
   16.0  | 
   19.1  | 
   26.2  | 
   38.1  | 
   48.5  | 
 
|   200  | 
   11.0  | 
   12.7  | 
   13.5  | 
   15.9  | 
   19.2  | 
   25.4  | 
   31.8  | 
   47.8  | 
   52.6  | 
   59.0  | 
   12.7  | 
   17.5  | 
   25.4  | 
   31.8  | 
   47.8  | 
   62.0  | 
 
|   250  | 
   12.1  | 
   14.2  | 
   15.0  | 
   17.5  | 
   21.2  | 
   28.7  | 
   36.6  | 
   57.2  | 
   59.9  | 
   —  | 
   14.2  | 
   19.1  | 
   28.7  | 
   36.6  | 
   57.2  | 
   67.6  | 
 
|   300  | 
   12.8  | 
   15.3  | 
   16.8  | 
   19.1  | 
   23.0  | 
   31.8  | 
   42.2  | 
   —  | 
   —  | 
   —  | 
   16.0  | 
   20.6  | 
   31.8  | 
   42.2  | 
   66.8  | 
   86.6  | 
 
|   350  | 
   13.4  | 
   15.9  | 
   17.7  | 
   20.5  | 
   25.2  | 
   35.1  | 
   —  | 
   —  | 
   —  | 
   —  | 
   16.8  | 
   22.4  | 
   35.1  | 
   46.0  | 
   69.9  | 
   —  | 
 
|   400  | 
   14.0  | 
   16.4  | 
   18.6  | 
   21.8  | 
   27.0  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   17.5  | 
   23.9  | 
   38.1  | 
   52.3  | 
   79.5  | 
   —  | 
 
|   450  | 
   14.6  | 
   16.9  | 
   19.5  | 
   23.0  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   18.3  | 
   25.4  | 
   41.4  | 
   57.2  | 
   88.9  | 
   —  | 
 
|   500  | 
   15.3  | 
   17.6  | 
   20.4  | 
   24.3  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   19.1  | 
   26.9  | 
   44.5  | 
   63.5  | 
   98.6  | 
   —  | 
 
|   600  | 
   16.5  | 
   19.6  | 
   22.2  | 
   27.0  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   20.6  | 
   30.2  | 
   50.8  | 
   73.2  | 
   114.3  | 
   —  | 
 
|   650  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   21.3  | 
   31.9  | 
   54.1  | 
   78.5  | 
   —  | 
   —  | 
 
|   700  | 
   17.6  | 
   21.0  | 
   25.0  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   22.0  | 
   33.5  | 
   57.3  | 
   83.8  | 
   —  | 
   —  | 
 
|   750  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   23.1  | 
   35.1  | 
   60.5  | 
   89.1  | 
   —  | 
   —  | 
 
|   800  | 
   19.2  | 
   23.0  | 
   28.0  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   24.0  | 
   38.0  | 
   63.8  | 
   94.4  | 
   —  | 
   —  | 
 
|   900  | 
   20.3  | 
   24.1  | 
   29.4  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   25.4  | 
   39.9  | 
   70.4  | 
   105.0  | 
   —  | 
   —  | 
 
|   1000  | 
   21.5  | 
   25.6  | 
   31.8  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   26.9  | 
   43.1  | 
   77.3  | 
   115.7  | 
   —  | 
   —  | 
 
|   1050  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   27.7  | 
   44.7  | 
   80.0  | 
   121.0  | 
   —  | 
   —  | 
 
|   1200  | 
   24.2  | 
   28.7  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   30.2  | 
   49.5  | 
   90.3  | 
   —  | 
   —  | 
   —  | 
 
|   1350  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   32.8  | 
   54.8  | 
   100.7  | 
   —  | 
   —  | 
   —  | 
 
|   1400  | 
   27.1  | 
   32.2  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   33.9  | 
   56.4  | 
   104.1  | 
   —  | 
   —  | 
   —  | 
 
|   1500  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   35.7  | 
   59.8  | 
   111.0  | 
   —  | 
   —  | 
   —  | 
 
|   1600  | 
   30.1  | 
   35.7  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   37.6  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
 
|   1650  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   38.6  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
 
|   1800  | 
   31.7  | 
   37.6  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   39.6  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
 
|   1950  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   44.0  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
 
|   2000  | 
   36.0  | 
   42.8  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   45.0  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
 
|   2100  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
   46.8  | 
   —  | 
   —  | 
   —  | 
   —  | 
   —  | 
 
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