DYC-JQ電磁真空壓差閥
DYC-JQ型電磁真空壓差閥是機械真空泵安全閥，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，閥門利用大氣壓力使閥板自動關閉，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。
■ DYC-JQ
Electro-vacuum Differential Pressure Valve
■ 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.
■ DYC-JQ電磁真空壓差閥主要技術性能
Main Technical Performance
■ 適用范圍：Applicability 105～10-2Pa
閥門漏率：Valve Leak Rate ≤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
■ DYC-JQ電磁真空壓差閥主要零件材料
Materials of Main Parts
■ 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）
■ DYC-JQ電磁真空壓差閥外形及連接尺寸（mm）
Overall and Connection Dimensions（mm）
■ DYC-JQ電磁真空壓差閥活套法蘭連接（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
■DYC-JQ電磁真空壓差閥 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
■ DYC-JQ電磁真空壓差閥方體螺紋連接（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
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