DZQ系列真空夾套低溫緊急切斷閥
DZQ系列真空夾套低溫緊急切斷閥 DZQ series vacuum jacketed low-temperature emergency cut-off valve
此類型專用真空夾套低溫緊急切斷閥主要用于低溫儲運上切斷介質流通，特別是在出現火情故障時能及時切斷介質。具有開關靈活、密封可靠和防靜電的特點。
This type is special vacuum jacketed low-temperature emergency cut-off valve is mainly used for cut off the medium flow on low temperature storage and transportation, especially in the event of a fire failure can cut off the medium in a timely manner. With flexible switch, reliable sealing and anti-static characteristics.
主要技術參數 Main technical parameters
公稱壓力/Nominal pressure:4.0MPa
設計溫度/Design temperature:-196℃～+80℃
適用介質/Applicable medium:LNG 、LO2、LN2、LAr
連接方式/Connection method:承插焊
| 主要零部件名稱 Main components name |
| 閥體/Valve body：ZG0Cr18Ni9 |
| 閥瓣/Valve disc：0Cr18Ni9 |
| 閥蓋/Valve cover：ZG0Cr18Ni9 |
| 閥桿/Valve stem：0Cr18Ni9 |
| 主密封件/Main sea：PTFEI |
| 型號/Model | 主要外形和連接尺寸/Main form and the connection size (mm) |
| H | H1 | H2 | D0 | D1 | D2 | D | M | W1 | W2 | B |
| DZQ -25 | 194 | 492 | 131.5 | Ф25 | Ф32.5 | Ф82 | Ф100 | Rc? | 90 | Ф130 | 8 |
| DZQ -32 | 203 | 501 | 141.5 | Ф32 | Ф38.5 | Ф101 | Ф100 | Rc? | 105 | Ф130 | 8 |
| DZQ -40 | 230 | 578 | 173 | Ф40 | Ф45.5 | Ф101 | Ф125 | Rc? | 120 | Ф160 | 8 |
| DZQ -50 | 236 | 584 | 176.5 | Ф50 | Ф57.5 | Ф126 | Ф125 | Rc? | 140 | Ф160 | 10 |
