DYC-JQ electro-vacuum differential Pressure valve is a safely valve for mechanical vacuum pump. It is mounted at the intake nozzle of mechanical vacuum pump, synchronously opened and closed with the pump. In case that pump stops working or power supply is suddenly broken off, valve disc will be closed automatically under atmospheric pressure, to keep the vacuum system vacuum and the air charged into pump cavity, thus to prevent pump oil from reverse flow that can pollute the vacuum system. Applicable medium can be pure air or noncorrosive gases.
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主要技術性能 Main Technical Performance
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適用范圍:Applicability
105~10-2Pa
閥門漏率:Valve Leak Rate
≤1.3×10-2Pa.L/S.
適用溫度:Applicable Temperature
-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
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主要零件材料 Materials of Main Parts
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閥體、閥蓋、閥板:碳鋼或鋁合金
隔膜:丁腈橡膠加滌綸綢
Body, bonnet and disc: carbon steel or aluminium alloy
Diaphragm: NBR and terylene silk
CONSTRUCTION FIGHTS (mm)
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外形及連接尺寸(mm) Overall and Connection Dimensions(mm)
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活套法蘭連接(GB6070 圖一)
Model
型號
DN
Do
D
D2
n-φc
A
H
DYC-JQ50
50
90
110
55
4-φ9
70
203
DYC-JQ63
63
105
130
68
4-φ9
88
226
DYC-JQ80
80
125
145
85
8-φ9
98
260
DYC-JQ100
100
145
165
105
8-φ9
108
282
DYC-JQ160
160
200
225
165
8-φ12
158
350
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快卸法蘭連接(GB4982 圖二)
Model
型號
DN
D1
D
A
H
B
DYC-JQ16
16
17.2
30
40
160
55
DYC-JQ25
25
26.2
40
50
170
60
DYC-JQ32
32
34.2
55
58
179
60
DYC-JQ40
40
41.2
55
65
187
70
DYC-JQ50
50
52.2
75
70
203
85
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方體螺紋連接(JB919 圖三)
Model
型號
DN
Do
D2
h
B
H
n-d
DYC-JQ16
16
42
22
28
48
148
4-M5
DYC-JQ25
25
55
29
35
58
155
4-M6
DYC-JQ32
32
64
36
40
68
160
4-M6
DYC-JQ40
40
70
44
44
80
166
4-M6
DYC-JQ50
50
90
55
56
94
189
4-M8
DYC-JQ65
65
105
70
65
115
205
4-M8
DYC-JQ80
80
125
85
75
140
250
4-M8
浙B2-20080178-13
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