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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.
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 | b | l | |
| djf-10da | 128 | 122 | ф65 | ф13 | ф14.5 | ф24 | 6 | 60 |
| djf-15da | 146 | 137 | ф80 | ф15 | ф18.5 | ф29.5 | 6 | 65 |
| djf-20da | 152 | 141 | ф80 | ф20 | ф25.5 | ф36 | 8 | 80 |
| djf-25da | 175 | 161 | ф100 | ф25 | ф32.5 | ф43.5 | 8 | 90 |
| djf-32da | 187.5 | 172.5 | ф100 | ф32 | ф38.5 | ф53 | 8 | 105 |
| djf-40da | 216 | 198.4 | ф125 | ф40 | ф45.5 | ф62 | 8 | 120 |
| djf-50da | 225 | 204 | ф140 | ф50 | ф57.5 | ф72 | 10 | 140 |