河北盐山 宏鑫封头 管件制造厂，主要经营18mm-10米口径的各种材质的、 椭圆封头、球型封头、蝶形封头、平底封头、锥形封...
详细 
| 公称直径DN mm | 曲面高度h1 mm | 直边高度h2 mm | 内表面积A m2 | 容积V m3 |
| 300 | 75 | 25 | 0.121 | 0.00530 |
| (350) | 88 | 25 | 0.160 | 0.00802 |
| 400 | 100 | 25 | 0.204 | 0.0115 |
| 40 | 0.223 | 0.0134 | ||
| (450) | 112 | 25 | 0.254 | 0.0158 |
| 40 | 0.275 | 0.0183 | ||
| 500 | 125 | 25 | 0.309 | 0.0213 |
| 40 | 0.333 | 0.0242 | ||
| 50 | 0.349 | 0.0262 | ||
| (550) | 137 | 25 | 0.370 | 0.0277 |
| 40 | 0.396 | 0.0313 | ||
| 50 | 0.413 | 0.0336 | ||
| 600 | 150 | 25 | 0.436 | 0.0352 |
| 40 | 0.464 | 0.0396 | ||
| 50 | 0.483 | 0.0425 | ||
| (650) | 162 | 25 | 0.507 | 0.0442 |
| 40 | 0.538 | 0.0493 | ||
| 50 | 0.558 | 0.0526 | ||
| 700 | 175 | 25 | 0.584 | 0.0545 |
| 40 | 0.617 | 0.0603 | ||
| 50 | 0.639 | 0.0642 | ||
| 800 | 200 | 25 | 0.754 | 0.0796 |
| 40 | 0.792 | 0.0871 | ||
| 50 | 0.817 | 0.0921 | ||
| 900 | 225 | 25 | 0.945 | 0.112 |
| 40 | 0.880 | 0.121 | ||
| 50 | 1.02 | 0.127 | ||
| 1000 | 250 | 25 | 1.16 | 0.151 |
| 40 | 1.21 | 0.162 | ||
| 50 | 1.24 | 0.170 | ||
| (1100) | 275 | 25 | 1.40 | 0.198 |
| 40 | 1.45 | 0.212 | ||
| 50 | 1.49 | 0.222 | ||
| 1200 | 300 | 25 | 1.65 | 0.255 |
| 40 | 1.17 | 0.272 | ||
| 50 | 1.75 | 0.283 | ||
| (1300) | 325 | 25 | 1.93 | 0.321 |
