DYC-JQ電磁真空壓差閥
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DYC-JQ電磁真空壓差閥概述
DYC-JQ電磁真空壓差閥是機械真空泵安全（quán）閥，安裝於（yú）機械真空泵的進氣口，並與泵同步開啟和關閉。當泵停止工作或電源（yuán）突（tū）然（rán）中斷時，閥（fá）門利用大氣壓力使閥板（bǎn）自動（dòng）關閉，使真（zhēn）空（kōng）係統保持真空並將大氣充入泵腔內，從而避免泵油逆向流動而汙染真空係統。適用介質為純淨空（kōng）氣和非腐蝕性氣（qì）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型電磁真空壓差閥主要技術性能
Main Technical Performance| 適用範圍：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（bì）時間：Open-close Time | ≤3S |
| 電源電（diàn）壓：Mains Voltage | 220V/50Hz |
主要零件材（cái）料
Materials of Main Parts
閥（fá）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
外形及連接尺（chǐ）寸（cùn）(mm)
Overall and Connection Dimensions(mm)
活套法蘭（lán）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 |
快卸法蘭連接(GB4982 圖二（èr）)
|
Model 型（xíng）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 |
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 |
