
Product category
| 压力等级 口径(英寸) | 150 | 300 | 600 | 900 | 1500 | 2500 |
| 3/4 | ○ | ○ | ○ | --- | --- | --- |
| 1 | ○ | ○ | ○ | ○ | ○ | ○ |
| 1 1/2 | ○ | ○ | ○ | ○ | ○ | ○ |
| 2 | ○ | ○ | ○ | ○ | ○ | ○ |
| 3 | ○ | ○ | ○ | ○ | ○ | ○ |
| 4 | ○ | ○ | ○ | ○ | ○ | ○ |
| 6 | ○ | ○ | ○ | ○ | ○ | ○ |
| 口径(英寸) | 压力等级ANSI Class | ||||
| 150 | 300 | 600 | 900、1500 | 2500 | |
| 3/4 | □● | □● | □△● | --- | --- |
| 1、1 1/2 | □● | □● | □△● | □● | □● |
| 2 | □● | □● | □△● | □● | ● |
| 3、4、6 | □■ | □■ | □■ | □■ | ■ |