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add：no.93 xianle road, zhujing town, jinshan district, shanghai
this type is special vacuum jacketed low-temperature globe valve is mainly used to prevent the pipeline system of low temperature and cryogenic medium medium flow back, has the characteristics of the sealing is reliable.
nominal pressure:4.0mpa
design temperature:-196℃～ 80℃
applicable medium:lng 、lo2、ln2、lar
connection method:socket welding
| main components name |
| valve body：zg0cr18ni9 |
| valve disc：0cr18ni9 |
| valve cover：0cr18ni9 |
| main seal：ptfe |
| spring：1cr18ni9 |
| model | main form and the connection size (mm) | |||||||
| h | h1 | l | d0 | d1 | d2 | d3 | b | |
| dzh-25 | 78 | 131.5 | 90 | ф25 | ф32.5 | ф43.5 | ф82 | 8 |
| dzh-32 | 90 | 141.5 | 105 | ф32 | ф38.5 | ф53 | ф101 | 8 |
| dzh-40 | 99 | 173 | 120 | ф40 | ф45.5 | ф62 | ф101 | 8 |
| dzh-50 | 112 | 176.5 | 140 | ф50 | ф57.5 | ф72 | ф126 | 10 |