公称尺寸 |
公 称 压 力 PN |
|||||
DN |
16、20 |
25~50 |
63~110 |
150、160 |
250、260 |
420 |
|
阀体密封座的最小直径/mm |
|||||
15 |
13 |
13 |
13 |
13 |
13 |
11 |
20 |
19 |
19 |
19 |
18 |
17 |
14 |
25 |
25 |
25 |
25 |
23 |
22 |
19 |
32 |
32 |
32 |
32 |
30 |
29 |
25 |
40 |
38 |
38 |
38 |
36 |
35 |
29 |
50 |
51 |
51 |
51 |
49 |
48 |
38 |
65 |
64 |
64 |
64 |
60 |
57 |
48 |
80 |
76 |
76 |
76 |
72 |
70 |
57 |
100 |
102 |
102 |
102 |
98 |
92 |
73 |
150 |
152 |
152 |
152 |
146 |
137 |
111 |
200 |
203 |
203 |
200 |
190 |
178 |
146 |
250 |
254 |
254 |
248 |
238 |
222 |
184 |
300 |
305 |
305 |
298 |
283 |
264 |
219 |
350 |
337 |
— |
— |
311 |
289 |
— |
400 |
387 |
— |
— |
— |
— |
— |
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