公称通径 DN |
R |
D |
25 ( 1 " ) |
95 |
21 |
32 ( 1.25 " ) |
105 |
28 |
40 ( 1.5 " ) |
112 |
36 |
50 ( 2 " ) |
122 |
45 |
65 ( 2.5 " ) |
134 |
60 |
80 ( 3 " ) |
141 |
74 |
100 ( 4 " ) |
153 |
94 |
125 ( 5 " ) |
170 |
118 |
150 ( 6 " ) |
188 |
143 |
200 ( 8 " ) |
217 |
191 |
250 ( 10 " ) |
254 |
241 |
300 ( 12 " ) |
282 |
290 |
350 ( 14 " ) |
350 |
340 |
400 ( 16 " ) |
380 |
390 |
450 ( 18 " ) |
420 |
438 |
500 ( 20 " ) |
460 |
486 |
600 ( 24 " ) |
500 |
584 |