DDC-JQ电磁真空带充气阀 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。适用介质为净空气和非腐蚀性气体。 ■ DDC-JQ 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. ■ 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 ■ 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 CONSTRUCTION FIGHTS(mm) ■ 电磁真空带充气阀外形及连接尺寸(mm)(JB919) Overall and Connection Dimensions(mm) 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 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 相关真空阀产品系列: GDC-J电磁高真空挡板阀 真空管道连接件 GM高真空压力隔膜阀 DDC-JQ电磁真空带充气阀 DYC-JQ电磁真空压差阀 CC超高真空插板阀 GD高真空挡板阀 GDC-5 电磁高真空挡板阀 CCD电动超高真空插板阀 GDQ气动高真空挡板阀 GI高真空蝶阀 GID电动高真空蝶阀 GIQ型－气动高真空蝶阀 GU手动真空球阀 GUD电动真空球阀 GUQ型－气动高真空(压力)球阀 GUD系列电动真空球阀