| 品牌 | 上海白湖 | 型号 | 双板对夹止回阀 |
| 材质 | 铸钢 | 连接形式 | 法兰 |
| 序号 | 数量 | 零件名称 |
| 1 | 1 | 阀体 |
| 2 | 1 | 阀座 |
| 3 | 2 | 阀板 |
| 4 | 2 | 弹簧 |
| 5 | 2 | 转轴 |
| DN50-DN800 双板对夹式止回阀性能规范 压头损失曲图 | ||||||||||||||||||||||||||||||
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阀门规格 | D | D1 | D2 | L | R | T | 重量Kgs. | |
| inch | mm | |||||||
| 2 | 50 | 107 | 65 | 43.3 | 43 | 28.8 | 19 | 1.5 |
| 2 1/2 | 65 | 127 | 80 | 60.2 | 46 | 36.1 | 20 | 2.4 |
| 3 | 80 | 142 | 94 | 66.4 | 64 | 43.4 | 28 | 3.6 |
| 4 | 100 | 162 | 117 | 90.8 | 64 | 52.8 | 27 | 5.7 |
| 5 | 125 | 192 | 145 | 116.9 | 70 | 65.7 | 30 | 7.3 |
| 6 | 150 | 218 | 170 | 144.6 | 76 | 78.6 | 31 | 9.0 |
| 8 | 200 | 273 | 224 | 198.2 | 89 | 104.4 | 33 | 17.0 |
| 10 | 250 | 328 | 265 | 233.7 | 114 | 127 | 50 | 26.0 |
| 12 | 300 | 378 | 310 | 279.05 | 114 | 146 | 43 | 37.0 |
| 14 | 350 | 438 | 360 | 327.87 | 127 | 170 | 45 | 54.9 |
| 16 | 400 | 489 | 410 | 375.88 | 140 | 195 | 52 | 78.0 |
| 18 | 450 | 555 | 450 | 414.06 | 152 | 215 | 58 | 119.0 |
| 20 | 500 | 594 | 505 | 467.83 | 152 | 241 | 58 | 122.0 |
| 24 | 600 | 700 | 624 | 569.59 | 178 | 294 | 73 | 174.0 |
| 28 | 700 | 820 | 720 | 662.75 | 229 | 345 | 96 | 219.0 |
| 32 | 800 | 930 | 825 | 762.72 | 241 | 394 | 99 | 316.0 |
