DDC-JQ電磁真空帶充氣閥
DDC-JQ電磁真空帶充氣閥是機械真空泵**閥，安裝于機械真空泵的進氣口，并與泵同步開啟和關閉。當泵停止
工作或電源突然中斷時，閥門自動關閉。使真空系統保持真空并將大氣充入泵腔內，從而避免泵油逆向流動而污染
真空系統。適用介質為純凈空氣和非腐蝕性氣體。
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.
電磁真空帶充氣閥主要技術性能Main Technical Performance
適用范圍：Applicability
105～10-2Pa
閥門漏率：Valve Leak Rate
≤6.7×10-3Pa.L/S.
適用溫度：Applicability
-30～+50℃
線圍溫升：Coil Temperature Rise
≤65℃
開閉時間：Open-close Time
≤3S
電源電壓：Mains Voltage
220V/50Hz
電磁真空帶充氣閥主要零件材料Materials of Main Parts
閥體、閥蓋、閥板：碳鋼或鋁合金 密封圈：丁腈橡膠 Body, bonnet and disc: carbon steel or aluminium alloy Seal ring: NBR
CONSTRUCTION FIGHTS(mm)
電磁真空帶充氣閥外形及連接尺寸(mm)(JB919)Overall and Connection Dimensions(mm)
Model 型號
DN
h
B
H
D
Do
D1
n-d
Machineal pump 機械泵匹配參考
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