公称通径PN
公称压力PN/MPa
T1
T
2.0
2.5、4.0
2.5
4.0
5.0、10.0、15.0、25.0
5.0
10.0
15.0
25.0
D1min
D2min
D3max
D4max
D1min
D2min
D3max
D4max
D4max
D1min
D2min
D3max
D4max
D4max
D4max
D4max
10
15
23.6
36.4
48
按PN2.5/MPa
按PN15/MPa
按PN15/MPa
2和3
3.2和4.5
15
14.3
18.7
32.4
46.5
19
27.6
40.4
53
14.3
18.7
32.4
52.5
62.5
20
20.6
26.6
40.1
56
24
33.6
47.4
63
20.6
25
40.1
64.5
69
25
27
32.9
48
65.5
30
40.6
55.4
73
27
31.5
48
71
77.5
32
34.9
45.6
60.9
75
39
49.6
66.4
84
34.9
44.1
60.9
80.5
87
40
41.3
53.6
70.4
84.5
45
55.6
72.4
94
41.3
50.4
70.4
94.5
97
50
52.4
69.5
86.1
102.5
56
67.6
86.4
109
52.4
66.3
86.1
109
141.5
65
63.5
82.2
98.9
121.5
72
83.6
103.4
129
63.5
79
98.9
129
163.5
80
77.8
101.2
121.1
134.5
85
96.6
117.4
144
77.8
94.9
121.1
148.5
166.5
173
100
103
126.6
149.6
172.5
108
122.6
144.4
170
103
120.3
149.6
180
192
205
208.5
125
128.5
153.6
178.4
196
123
147.6
170.4
196
128.5
147.2
178.4
215
240
246.5
253
150
154
180.6
210
221.5
160
176.6
200.4
226
154
174.2
210
250
265
287.5
281.5
200
203.2
231.6
263.9
278.5
209
228.6
255.4
286
293
203.2
225
263.9
306
319
357.5
351.5
250
254
286.9
317.9
338
262
282.6
310.4
343
355
254
280.5
317.9
360.5
399
434
434.5
300
303.2
339.3
375.1
408
311
331.6
360.4
403
420
303.2
333
375.1
421
456
497.5
519.5
350
342.9
371.1
406.8
449
355
374.6
405.4
460
477
342.9
364.7
406.8
484.5
491
520
579
400
393.7
421.9
464
513
406
425.6
458.4
517
549
393.7
415.5
464
538.5
564
574
641
450
444.5
475.9
527.5
548
452
476.6
512.4
567
574
444.5
469.5
527.5
595.5
612
628
702.5
500
495.3
526.7
578.5
605
508
527.6
566.4
627
631
495.3
520.3
578.3
653
682
697.5
756
3和5
4.5和6.5
600
596.9
631.4
686.2
716.5
610
634.6
675.4
734
750
596.9
625.1
686.2
774
790
837.5
900.5
700
710
734
778.4
836
800
811
835
879.5
945
900
909
933
980.5
1045