公称尺寸DN
公称压力PN
16
20
25
40
50
63
100、110
150、160
250、260
420
50
7.9
8.6
8.8
9.3
9.7
10.0
11.2
15.8
19.1
22.4
65
8.7
9.7
10.0
10.7
11.2
11.4
11.9
18.0
22.4
25.4
80
9.4
10.4
10.7
11.4
11.9
12.1
12.7
19.1
23.9
30.2
100
10.3
11.2
11.5
12.2
12.7
13.4
16.0
21.3
28.7
35.8
150
11.9
11.9
12.6
14.6
16.0
16.7
19.1
26.2
38.1
48.5
200
12.7
12.7
13.5
15.9
17.05
19.2
25.4
31.8
47.8
62.0
250
14.2
14.2
15.0
17.5
19.1
21.2
28.7
36.6
57.2
67.6
300
15.3
16.0
16.8
19.1
20.6
23.0
31.8
42.2
66.8
86.6
350
15.9
16.8
17.7
20.5
22.4
25.2
35.1
46.0
69.9
—
400
16.4
17.5
18.6
21.8
23.9
27.0
38.1
52.3
79.5
—
450
16.9
18.3
19.5
23.0
25.4
28.9
41.4
57.2
88.9
—
500
17.6
19.1
20.4
24.3
26.9
30.7
44.5
63.5
98.6
—
600
19.6
20.6
22.2
27.0
30.2
34.7
50.8
73.2
114.3
—
