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：对焊
| 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 | B | L | |
| DJF-10A | 211.3 | 205.3 | Ф65 | Ф13 | Ф14.5 | Ф24 | 6 | 60 |
| DJF-15A | 256 | 247 | Ф80 | Ф15 | ФФ18.5 | Ф29.5 | 6 | 65 |
| DJF-20A | 261 | 250 | Ф80 | Ф20 | Ф25.5 | Ф36 | 8 | 80 |
| DJF-25A | 291 | 277.5 | Ф100 | Ф25 | Ф32.5 | Ф43.5 | 8 | 90 |
| DJF-32A | 301 | 286.5 | Ф100 | Ф32 | Ф38.5 | Ф53 | 8 | 105 |
| DJF-40A | 367 | 349.4 | Ф125 | Ф40 | Ф45.5 | Ф62 | 8 | 120 |
| DJF-50A | 375 | 354 | Ф140 | Ф50 | Ф57.5 | Ф72 | 10 | 140 |
