进口电磁真空带充气阀
德国沃德WODE的进口WDC-JQ型－电磁真空带充气阀
WDC-JQ型电磁真空带充气阀是机械真空泵安全阀，安装于机械真空泵的进气口，并与泵同步开启和关闭。当泵停止工作或电源突然中断时，阀门自动关闭。使真空系统保持真空并将大气充入泵腔内，从而避免泵油逆向流动而污染真空系统。适用介质为纯净空气和非腐蚀性气体。
WDC-JQ-Electro-vacuum Charging Valve
WDC-JQ electro-vacuum charging valve is asafety valve for vacuum, pump. It is mounted at the intake nozzle of vacuumpump, synchronly opened and closed with the vacuum pump. In case that vacuumpump s working or power supply is suddenly broken off, valve will be cosedautomatically to keep the vacuum system vacuum and the air charged into thecavity of vacuum pump, t to prevent pump oil from reverse flow that canpollute the vacuum system. Applicable medium can be pure air and noncorrosivegases.
主要技术性能
ain Technical Performance
| 适用范围：Applicability | 105～10-2Pa |
| 阀门漏率：Valve Leak Rate | ≤6.7×10-3Pa.L/S. |
| 适用温度：Applicability | -30～+50℃ |
| 线围温升：Coil Temperature Rise | ≤65℃ |
| 开闭时间：Open-close Time | ≤3S |
| 电源电压：Mains Voltage | 220V/50Hz |
主要零件材料
阀体、阀盖、阀板：碳钢或铝合金
密封圈：丁腈橡胶
Body, bo and disc: carbon steel oraluminium alloy
Seal ring: NBR
外形及连接尺寸(mm)(JB919)
Overall and Connection Dimensions(mm)
| 型号 | DN | h | B | H | D | Do | D1 | n-d | Machineal pump |
| WDC-JQ16 | 16 | 28 | 48 | 176 | 68 | 42 | 22 | 4-M5 | 2XZ-0.5～1 |
| WDC-JQ25 | 25 | 35 | 58 | 199 | 82 | 55 | 29 | 4-M6 | 2XZ-2～4 |
| WDC-JQ32 | 32 | 40 | 68 | 222 | 92 | 64 | 36 | 4-M6 | 2XZ-4 |
| WDC-JQ40 | 40 | 44 | 80 | 253 | 110 | 70 | 44 | 4-M6 | 2XZ-8 |
| WDC-JQ50 | 50 | 56 | 94 | 294 | 124 | 90 | 55 | 4-M8 | 2X-15 |
| WDC-JQ65 | 65 | 65 | 115 | 320 | 135 | 105 | 70 | 4-M8 | 2X-30 |
| WDC-JQ80 | 80 | 75 | 140 | 367 | 165 | 125 | 85 | 4-M8 | 2X-70 |
