此類型專用真空夾套低溫緊急切斷閥主要用于低溫儲運(yùn)上切斷介質(zhì)流通，特別是在出現(xiàn)火情故障時能及時切斷介質(zhì)。具有開關(guān)靈活、密封可靠和防靜電的特點(diǎn)。
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(shù)參數(shù) Main technical parameters
公稱壓力/Nominal pressure：4.0MPa
設(shè)計(jì)溫度/Design temperature：-196℃～+80℃
適用介質(zhì)/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 |
標(biāo)簽: 低溫閥門
