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DDC电磁真空带充气阀
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DDC电磁真空带充气阀
DDC-JQ
DDC电磁真空带充气阀|DDC电磁真空带充气阀厂家|上海DDC电磁真空带充气阀
■ DDC-JQ型－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。适用介质为纯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.
 
■ 主要技术性能
Main Technical Performance
 
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■
　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
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)
 
■ 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