口徑(英寸) 壓力等級(jí) | 1 1/2 | 2 | 3 | 4 | 6×3 | 6 | 8×4 | 8 | 10×6 |
1500 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
300 | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ | ○ |
600 | ○ | ○ | ○ | ○ | --- | ○ | --- | ○ | --- |
900 | --- | ○ | ○ | ○ | --- | ○ | --- | ○ | --- |
1500 | --- | ○ | ○ | ○ | --- | ○ | --- | ○ | --- |
2500 | --- | ○ | ○ | ○ | --- | ○ | --- | --- | --- |
口徑(英寸) | 壓力等級(jí)ANSI Class | |||||
150 | 300 | 600 | 900 | 1500 | 2500 | |
1 1/2 | ●□ | ●□ | △●□ | --- | --- | --- |
2 | ●□ | ●□ | △●□ | ●□ | ●□ | ●□ |
3 | ■□ | ■□ | ■□ | ■□ | ■□ | ■□ |
4 | ■□ | ■□ | ■□ | ■□ | ■□ | ■□ |
6 | ■□ | ■□ | ■□ | ■□ | ■□ | ■ |
8 | ■□ | ■□ | ■□ | ■□ | ■□ | --- |
10* | ■□ | ■□ | --- | --- | --- | --- |