| | DDC-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。 |
| | DDC-JQ电磁真空带充气阀Electro-vacuum Charging Valve | | | | | DDC-JQ electro-vacuum charging valve is a safety valve for vacuum, pump. It is mounted at the intake nozzle of vacuum pump, synchronously opened and closed with the vacuum pump. In case that vacuum pump stops working or power supply is suddenly broken off, valve will be cosed automatically to keep the vacuum system vacuum and the air charged into the cavity of vacuum pump, thus to prevent pump oil from reverse flow that can pollute the vacuum system. Applicable medium can be pure air and noncorrosive gases. | |
| ■ | DDC-JQ电磁真空带充气阀主要技术性能
Main 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 | |
| ■ | DDC-JQ电磁真空带充气阀主要零件材料
Materials of Main Parts | | | | |
| 阀体、阀盖、阀板：碳钢或铝合金
密封圈：丁腈橡胶
Body, bonnet and disc: carbon steel or aluminium alloy
Seal ring: NBR | |
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| CONSTRUCTION FIGHTS(mm) |
| ■ | DDC-JQ电磁真空带充气阀外形及连接尺寸(mm)(JB919)
Overall and Connection Dimensions(mm) | |
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| Model
型号 | DN | h | B | H | D | Do | D1 | n-d | Machineal pump
机械泵匹配参考 | | DDC-JQ16 | 16 | 28 | 48 | 176 | 68 | 42 | 22 | 4-M5 | 2XZ-0.5～1 | | DDC-JQ25 | 25 | 35 | 58 | 199 | 82 | 55 | 29 | 4-M6 | 2XZ-2～4 | | DDC-JQ32 | 32 | 40 | 68 | 222 | 92 | 64 | 36 | 4-M6 | 2XZ-4 | | DDC-JQ40 | 40 | 44 | 80 | 253 | 110 | 70 | 44 | 4-M6 | 2XZ-8 | | DDC-JQ50 | 50 | 56 | 94 | 294 | 124 | 90 | 55 | 4-M8 | 2X-15 | | DDC-JQ65 | 65 | 65 | 115 | 320 | 135 | 105 | 70 | 4-M8 | 2X-30 | | DDC-JQ80 | 80 | 75 | 140 | 367 | 165 | 125 | 85 | 4-M8 | 2X-70 | 真空阀门定货须知：
一、①需采购的信茂高真空隔膜阀产品名称与型号②高真空隔膜阀口径③高真空隔膜阀是否带附件以便我们的为您正确选型。
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三、当使用的场合非常重要或环境比较复杂时,请您尽量提供设计图纸和详细参数，由我们的信茂阀门专家为您审核把关。
四、我们追求的不是一次的利益关系，而是与您的长期合作。我们提供的不是低廉的劣质品，而是货真价实的真品。我们所有的信茂人兢兢业业只为了打造温州的品牌阀门，为您提供满意的产品。我们愿与您携手共进，共创辉煌。 |
