此类型专用低温截止阀主要用于低温和深冷介质的管路系统，具有开关灵活、密封可靠的特点。
These low-temperature stopping valves are mainly used in pipeline systems with low-temperature and deep cold mediums.featured in its flexible operation and reliable sealing.
主要技术参数 Main technical parameters
公称压力/Nominal pressure：4.0MPa
设计温度/Design temperature：-196℃～+80℃
适用介质/Applicable medium：LNG 、LO2、LN2、LAr
连接方式/Connection method：承插焊
| 主要零部件名称 Main components name | 材料 Materials | |
| 阀体/Valve body | ZG0Cr18Ni9 | |
| 阀瓣/Valve disc | 0Cr18Ni9 | |
| 阀盖/Valve cover | ZG0Cr18Ni9 | |
| 阀杆/Valve stem | 0Cr18Ni9 | |
| 手轮/Hand wheel | Y102 | |
| 主密封件/Main seal | PCTFE | |
| 型号/Model | 主要外形和连接尺寸/Main form and the connection size (mm) | ||||||
| H(开） | H(关） | D | D0 | D1 | D2 | L | |
| DJF-65DA | 254.5 | 235.5 | Ф200 | Ф65 | Ф60 | Ф85 | 216 |
| DJF-80DA | 286.5 | 267 | Ф250 | Ф80 | Ф75 | Ф103 | 241 |
| DJF-100DA | 316.5 | 291 | Ф320 | Ф100 | Ф95 | Ф120 | 292 |
| DJF-125DA | 450 | 425 | Ф315 | Ф125 | Ф120 | Ф145 | 332 |
| DJF-150DA | 478 | 451 | Ф315 | Ф150 | Ф147 | Ф185 | 370 |
