閥門殼體較小壁厚尺寸要求規(guī)范
鐵制球閥殼體較小壁厚
單位為毫米
|
公稱尺寸 DN |
公稱壓力 | |||
| PN10 | PN16 | PN16 | PN25 | |
| 灰鑄鐵 | 球墨鑄鐵 | |||
| 15 | 5 | 5 | 5 | 6 |
| 20 | 5 | 5 | 5 | 7 |
| 25 | 6 | 6 | 6 | 7 |
| 32 | 6 | 7 | 6 | 8 |
| 40 | 7 | 7 | 7 | 8 |
| 50 | 7 | 8 | 7 | 9 |
| 65 | 8 | 8 | 8 | 9 |
| 80 | 8 | 9 | 8 | 10 |
| 100 | 9 | 10 | 9 | 11 |
| 125 | 10 | - | 10 | 12 |
| 150 | 11 | - | 11 | 13 |
| 200 | 12 | - | 12 | - |
| 250 | 13 | - | 13 | - |
| 300 | 14 | - | 14 | - |
