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DYC-JQ型電(dian)磁真(zhen)空(kong)(kong)壓差閥(fa)是機(ji)械真(zhen)空(kong)(kong)泵(beng)安全閥(fa)，安裝(zhuang)于(yu)機(ji)械真(zhen)空(kong)(kong)泵(beng)的進(jin)氣(qi)口，并與泵(beng)同步開(kai)啟和關(guan)閉。當泵(beng)停止工作(zuo)或電(dian)源(yuan)突然中斷時，閥(fa)門利用(yong)(yong)大(da)氣(qi)壓力使(shi)(shi)閥(fa)板自動關(guan)閉，使(shi)(shi)真(zhen)空(kong)(kong)系統(tong)保持真(zhen)空(kong)(kong)并將大(da)氣(qi)充入泵(beng)腔(qiang)內，從(cong)而(er)避免泵(beng)油逆向流動而(er)污染真(zhen)空(kong)(kong)系統(tong)。適用(yong)(yong)介質為純凈空(kong)(kong)氣(qi)和非腐蝕性氣(qi)體。 |
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Electro-vacuum Differential Pressure Valve
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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(shi)用范圍(wei)：Applicability |
105～10-2Pa |
| 閥(fa)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 |
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| 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) |
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Model
型號
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DN
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Do
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D
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D2
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n-φc
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A
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H
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DYC-JQ50
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50
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90
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110
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55
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4-φ9
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70
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203
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DYC-JQ63
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63
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105
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130
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68
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4-φ9
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88
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226
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DYC-JQ80
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80
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125
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145
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85
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8-φ9
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98
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260
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DYC-JQ100
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100
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145
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165
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105
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8-φ9
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108
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282
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DYC-JQ160
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160
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200
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225
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165
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8-φ12
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158
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350
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快卸法蘭連接(GB4982 圖二) |
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Model
型號
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DN
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D1
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D
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A
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H
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B
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DYC-JQ16
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16
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17.2
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30
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40
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160
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55
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DYC-JQ25
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25
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26.2
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40
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50
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170
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60
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DYC-JQ32
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32
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34.2
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55
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58
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179
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60
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DYC-JQ40
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40
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41.2
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55
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65
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187
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70
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DYC-JQ50
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50
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52.2
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75
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70
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203
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85
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方體螺紋連接(JB919 圖三) |
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Model
型號
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DN
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Do
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D2
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h
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B
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H
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n-d
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DYC-JQ16
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16
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42
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22
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28
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48
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148
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4-M5
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DYC-JQ25
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25
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55
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29
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35
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58
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155
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4-M6
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DYC-JQ32
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32
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64
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36
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40
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68
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160
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4-M6
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DYC-JQ40
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40
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70
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44
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44
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80
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166
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4-M6
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DYC-JQ50
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50
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90
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55
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56
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94
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189
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4-M8
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DYC-JQ65
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65
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105
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70
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65
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115
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205
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4-M8
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DYC-JQ80
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80
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125
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85
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75
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140
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250
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4-M8
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