单位为毫米
公称压力 PN
内径
16
25
40
63
100
160
320
d
20
50
110
150
260
420
760
6
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.3
3.3
3.8
4.2
4.8
7.6
10
3.0
3.0
3.0
3.0
3.0
3.1
3.3
3.3
3.6
3.8
4.3
5.2
5.8
10.1
15
3.0
3.0
3.0
3.1
3.1
3.2
3.3
3.3
4.1
4.3
4.8
6.2
6.9
12.7
20
3.0
3.0
3.4
3.7
3.8
4.2
4.3
4.5
5.1
5.3
6.1
7.4
8.9
17.5
25
4.0
4.1
4.2
4.6
4.8
4.8
4.8
4.8
6.4
6.4
7.1
8.7
11.2
22.3
32
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
6.6
6.9
8.6
10.8
13.5
26.9
40
4.8
4.8
4.8
4.8
4.8
5.0
5.7
5.8
7.4
7.6
9.9
12.6
15.7
32.0
50
5.5
5.6
5.7
6.0
6.3
6.3
6.3
6.4
7.9
8.3
11.7
14.7
20.1
42.4
65
5.5
5.6
5.7
6.2
6.4
7.0
7.1
7.1
9.1
9.8
14.5
18.5
24.1
52.3
80
5.6
5.6
6.1
6.7
7.1
7.9
8.1
8.1
10.7
11.5
16.8
22.3
29.0
62.2
90
5.8
6.4
6.7
7.1
7.4
7.7
8.4
8.6
11.9
12.6
19.1
24.2
32.8
72.4
100
6.2
6.4
6.6
7.3
7.9
9.1
9.4
9.7
13.0
13.4
21.1
26.7
37.3
82.3
125
6.6
7.1
7.4
8.1
8.6
9.2
10.8
11.2
16.0
16.9
25.9
33.4
46.0
102.1
150
6.8
7.1
7.5
8.8
9.7
10.4
12.2
12.7
18.8
19.9
30.7
39.7
54.6
122.2
175
7.2
7.6
8.1
9.5
10.4
11.3
13.8
14.5
21.1
22.4
35.8
46.3
63.8
142.0
200
7.7
7.9
8.5
10.1
11.2
12.2
15.2
16.0
23.6
25.1
40.4
52.2
71.9
162.0
225
7.9
8.4
9.0
10.7
11.9
13.2
16.8
17.8
26.2
27.9
44.7
58.1
80.5
181.9
250
8.1
8.6
9.3
11.3
12.7
14.2
18.5
19.6
28.7
30.6
49.3
64.3
89.2
201.9
275
8.5
9.1
9.8
12.0
13.5
15.3
20.3
21.6
31.5
33.5
53.8
70.3
97.8
221.7
300
9.1
9.7
10.5
12.7
14.2
16.2
21.9
23.4
34.3
36.5
58.7
76.6
106.4
241.8
325
9.5
10.2
11.1
13.7
15.5
17.5
23.1
24.6
37.1
39.5
63.5
82.7
114.8
261.6
350
9.9
10.7
11.7
14.6
16.5
18.6
24.6
26.2
39.6
42.2
68.3
89.0
123.4
281.7
400
10.5
11.4
12.5
15.8
18.0
22.6
28.0
30.0
45.0
48.0
77.7
101.3
140.7
321.6
450
11.2
12.2
13.5
17.3
19.8
22.7
31.1
33.3
49.8
53.2
86.9
113.8
158.5
361.4
500
11.9
13.0
14.4
18.5
21.3
24.7
34.5
37.1
55.1
58.8
96.3
126.1
175.8
401.3
550
12.5
13.7
15.3
20.0
23.1
26.8
37.5
40.4
61.0
65.0
105.4
138.3
193.0
441.2
600
13.4
14.7
16.4
21.3
24.6
28.7
40.1
43.7
66.3
70.7
115.1
150.9
210.3
481.1
650
14.0
15.5
17.3
22.8
26.4
30.9
43.6
47.0
71.6
76.4
124.5
163.2
227.6
521.0
700
14.8
16.3
18.2
24.0
27.9
32.9
47.0
50.8
77.0
82.1
133.6
175.4
245.1
560.8
750
15.3
17.0
19.1
25.5
29.7
35.0
50.0
54.1
82.0
87.5
143.0
187.8
262.4
600.7
800
16.2
18.0
20.2
26.8
31.2
36.9
53.3
57.7
87.4
93.3
152.4
200.1
279.7
640.6
850
16.9
18.8
21.2
28.3
33.0
39.1
56.3
61.0
92.7
99.0
161.8
212.5
296.9
680.5
900
17.6
10.6
21.1
29.7
34.8
41.2
59.3
64.5
98.0
104.7
171.2
224.8
314.2
720.3
950
18.2
20.3
23.0
31.0
36.3
43.5
62.8
68.1
103.4
110.4
180.6
237.2
331.5
760.2
1000
19.1
21.3
24.1
32.5
38.1
45.3
65.9
71.4
108.7
116.1
190.0
249.6
349.0
800.1
1050
19.8
22.1
25.0
33.8
39.6
47.2
69.0
74.9
114.0
121.8
199.4
262.0
366.3
840.0
1100
20.4
22.9
26.0
35.2
41.4
49.4
72.1
78.2
119.4
127.5
208.5
274.1
383.5
879.6
1150
21.0
23.6
26.9
36.7
43.2
51.6
75.4
81.8
124.7
133.2
217.9
286.5
400.8
919.5
1200
21.9
24.6
28.0
38.0
44.7
53.5
78.4
85.1
130.0
138.8
227.3
298.9
418.1
959.4
1250
22.6
25.4
28.9
39.5
46.5
55.6
81.6
88.6
135.1
144.3
236.7
311.3
435.6
999.2
