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此类型专用真空夹套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。
this type is special vacuum jacketed low-temperature globe valve is mainly used in low temperature and cryogenic medium pipeline system, has the characteristics of flexible switch, 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 | |
| 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 | 主要外形和连接尺寸/main form and the connection size (mm) | ||||||||
| model | h(开） | h(关） | l | d0 | d1 | d2 | d3 | a | b |
| dzj-25 | 364 | 352 | 90 | ф25 | ф32.5 | ф43.5 | ф82 | 236 | 8 |
| dzj-32 | 374 | 352 | 105 | ф32 | ф38.5 | ф53 | ф101 | 248 | 8 |
| dzj-40 | 434 | 419.5 | 120 | ф40 | ф45.5 | ф62 | ф101 | 282.5 | 8 |
| dzj-50 | 443 | 420.5 | 140 | ф50 | ф57.5 | ф72 | ф126 | 286 | 10 |