配合管道通径 | 阀口台阶(A) | 管道连接(B>) |
1/2″~3/4″ |
15 |
15 |
1″~1-1/4″ |
20 |
20 |
1-1/2~2-1/2 | 25 |
25 |
3″ | 40 |
40 |
4″ |
50 |
50 |
6″ |
50 |
50 |
8″ | 50 |
50 |
10″ | 50 |
50 |
12″~14″ | 100 |
100 |
16″~20″ |
150 |
150 |
24″~36″ |
200 |
200 |
42″ | 250 |
250 |
48″~60″ | 300 |
300 |
72″ | 400 |
400 |