国标对焊式波纹管截止阀
Bb Os & Y型结构
制造标准：GB12235
结构标准：GB12221
对焊口标准：GB12224
实验标准：GB13927
Bb Os & Y Structure
Manufacture:GB12221
Face ToFace:DIN3202
Butt-welding:GB12224
Test:GB13927
| 公称压力（nominalPressure） | 1.6Mpa | 2.5Mpa | 4.0Mpa | |
| 密封实验(seal Test) | 1.8Mpa | 2.8Mpa | 4.4Mpa | |
| 壳体强度（shell） | 2.4Mpa | 3.6Mpa | 6.0Mpa | |
| 适用温度（suitable Temprature） |
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公称通经 DN(mm) |
尺寸（mm） | |||||||
| L | H | D | D0 | D1 | L1 | a | 手轮 | |
| 10 | 130 | 220 | 36 | 10 | 18.4 | 10 | 37.30° | 120 |
| 15 | 130 | 245 | 36 | 15 | 22.5 | 10 | 37.30° | 140 |
| 20 | 150 | 245 | 44 | 20 | 28.5 | 11 | 37.30° | 160 |
| 25 | 160 | 265 | 48 | 25 | 34.5 | 12 | 37.30° | 180 |
| 32 | 180 | 270 | 48 | 33 | - | - | 37.30° | 200 |
| 40 | 200 | 285 | 55 | 39 | - | - | 37.30° | 240 |
| 50 | 230 | 320 | 64 | 48 | - | - | 37.30° | 300 |
| 65 | 290 | 365 | 82 | 65 | - | - | 37.30° | 320 |
| 80 | 310 | 410 | 95 | 76 | - | - | 37.30° | 360 |
| 100 | 350 | 430 | 117 | 98 | - | - | 37.30° | 380 |
| 125 | 400 | 470 | 143 | 123 | - | - | 37.30° | 400 |
| 150 | 480 | 500 | 167 | 148 | - | - | 37.30° | 450 |
| 200 | 600 | 533 | 217 | 198 | - | - | 37.30° | 500 |
