产品名称 规格：对夹升降式止回阀
材质：铸钢 不锈钢
| 型号 | 公称压力PN(MPa) | 试验压力PS(MPa) | 工作温度(℃) | 适用介质 | |
| 壳体 | 密封 | ||||
| RH71W-16P | 1.6 | 2.4 | 1.76 | ≤200 | 水、蒸体、油品等 |
| RH71H-25Q | 2.5 | 3.75 | 2.75 | ≤235 | |
| RH71W-25H | ≤300 | ||||
| RH71W-25P | ≤200 | 硝酸等腐蚀性介质 | |||
| RH71W-40H | 4.0 | 6.0 | 4.4 | ≤300 | 水、蒸体、油品等 |
| RH71W-40P | ≤200 | 硝酸等腐蚀性介质 | |||
| 规格型号 | 阀体 | 阀瓣 | 弹簧 |
| RH71H-16Q、RH71H-25Q | QT400-15 | 25 | 50CrCA |
| RH71W-25H、RH71W-40H | 2Cr13 | 1Cr13 | 1Cr18Ni9Ti |
| RH71W-16P、RH71W-25P | ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti |