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永嘉縣三精閥門有限公司
永嘉縣三精閥門有限公司
產品說明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
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 | DN | h | B | H | D | Do | D1 | n-d | Machineal pump |
| 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 | 68 | 222 | 92 | 64 | 36 | 4-M6 | 2XZ-4 |
| DDC-JQ40 | 40 | 44 | 80 | 253 | 110 | 70 | 44 | 4-M6 | 2XZ-8 |
| DDC-JQ50 | 50 | 56 | 94 | 294 | 124 | 90 | 55 | 4-M8 | 2X-15 |
| DDC-JQ65 | 65 | 65 | 115 | 320 | 135 | 105 | 70 | 4-M8 | 2X-30 |
| DDC-JQ80 | 80 | 75 | 140 | 367 | 165 | 125 | 85 | 4-M8 | 2X-70 |
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