金属环号与法兰尺寸和压力等级的对应关系
发布时间：2021-11-30 点击数：1801
金属环号与法兰尺寸和压力等级的对应关系
|
DN |
NPS |
Class150 |
Class300 |
Class600 |
Class900 |
Class1500 |
Class2500 |
|
15 |
1/2 |
- |
R11 |
R11 |
R12 |
R12 |
R13 |
|
20 |
3/4 |
- |
R13 |
R13 |
R14 |
R14 |
R16 |
|
25 |
1 |
R15 |
R16 |
R16 |
R16 |
R16 |
R18 |
|
32 |
1 ¼ |
R17 |
R18 |
R18 |
R18 |
R18 |
R21 |
|
40 |
1 ½ |
R19 |
R20 |
R20 |
R20 |
R20 |
R23 |
|
50 |
2 |
R22 |
R23 |
R23 |
R24 |
R24 |
R26 |
|
65 |
2 ½ |
R25 |
R26 |
R26 |
R27 |
R27 |
R28 |
|
80 |
3 |
R29 |
R31 |
R31 |
R31 |
R35 |
R32 |
|
100 |
4 |
R36 |
R37 |
R37 |
R37 |
R39 |
R38 |
|
125 |
5 |
R40 |
R41 |
R41 |
R41 |
R44 |
R42 |
|
150 |
6 |
R43 |
R45 |
R45 |
R45 |
R46 |
R47 |
|
200 |
8 |
R48 |
R49 |
R49 |
R49 |
R50 |
R51 |
|
250 |
10 |
R52 |
R53 |
R53 |
R53 |
R54 |
R55 |
|
300 |
12 |
R56 |
R57 |
R57 |
R57 |
R58 |
R60 |
|
350 |
14 |
R59 |
R61 |
R61 |
R62 |
R63 |
- |
|
400 |
16 |
R64 |
R65 |
R65 |
R66 |
R67 |
- |
|
450 |
18 |
R68 |
R69 |
R69 |
R70 |
R71 |
- |
|
500 |
20 |
R72 |
R73 |
R73 |
R74 |
R75 |
- |
|
600 |
24 |
R76 |
R77 |
R77 |
R78 |
R79 |
- |
|
650 |
26 |
- |
R93 |
R93 |
R100 |
- |
- |
|
700 |
28 |
- |
R94 |
R94 |
R101 |
- |
- |
|
750 |
30 |
- |
R95 |
R95 |
R102 |
- |
- |
|
800 |
32 |
- |
R96 |
R96 |
R103 |
- |
- |
|
850 |
34 |
- |
R97 |
R97 |
R104 |
- |
- |
|
900 |
36 |
- |
R98 |
R98 |
R105 |
- |
- |