對(duì)夾式止回閥 鐵制對(duì)夾旋啟式止回閥及鐵制對(duì)夾蝶式止回閥閥體的最小壁厚
2018-01-27 00:06:05??????點(diǎn)擊：
對(duì)夾式止回閥 鐵制對(duì)夾旋啟式止回閥及鐵制對(duì)夾蝶式止回閥閥體的最小壁厚
| 公稱尺寸 DN | 公稱壓力 PN | |||||
| 2.5 | 6 | 10 | 16 | 25 | 40 | |
| 閥體的最小壁厚/mm | ||||||
| 灰鑄鐵、球墨鑄鐵 | 球墨鑄鐵 | |||||
| 50 | 6 | 8 | 8 | 8 | 8 | 9 |
| 65 | 6 | 8 | 8 | 9 | 9 | 10 |
| 80 | 6 | 9 | 9 | 10 | 10 | 11 |
| 100 | 8 | 9 | 9 | 11 | 11 | 12 |
| 125 | 9 | 10 | 10 | 12 | 12 | 13 |
| 150 | 9 | 10 | 10 | 14 | 14 | 15 |
| 200 | 10 | 12 | 12 | 15 | 15 | 16 |
| 250 | 12 | 13 | 13 | — | — | — |
| 300 | 13 | 14 | 14 | — | — | — |
| 350 | 14 | 15 | 15 | — | — | — |
| 400 | 14 | 16 | 16 | — | — | — |
| 450 | 15 | 17 | 17 | — | — | — |
| 500 | 15 | 18 | 18 | — | — | — |
| 600 | 16 | 20 | 20 | — | — | — |
| 700 | 20 | 24 | 26 | — | — | — |
| 800 | 20 | 24 | 26 | — | — | — |
| 900 | 22 | 25 | 28 | — | — | — |
| 1000 | 22 | 26 | 30 | — | — | — |
| 1200 | 23 | 26 | — | — | — | — |
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