DDC-JQ电磁真空带充气阀
DDC-JQ电磁真空带充气阀是机械真空泵**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-JQElectro-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
222
92
64
36
2XZ-4
DDC-JQ40
44
80
253
110
70
2XZ-8
DDC-JQ50
50
56
94
294
124
90
4-M8
2X-15
DDC-JQ65
65
115
320
135
105
2X-30
DDC-JQ80
75
140
367
165
125
85
2X-70