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DYC-JQ Series
Electromagnetic Lead and Difference Pressure vacuum Valve
DYC-JQ electro-vacuum difference pressure valve is a safety 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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Main Technical Performance |
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| Vacuum Range : |
105~6.7x10-3Pa |
| Valve Leak Rate : |
≤1.3x10-3 Pa.L/S |
Applicable Temperature : |
-30~+50℃ |
| Coil Operating Temperature : |
≤65℃ |
| Open-close Time : |
≤3S |
| Power Supply : |
Standard: 220V/50Hz
Special:DC24V
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| Mounting state : |
Upright or Level |
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Materials of Main Parts |
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Valve Body, bonnet and plate
Sealing element:NBR:
DN16-DN50 :Aluminium alloy;
DN63-DN150: Valve Body and bonnet use carbon steel,valve plate uses aluminium alloy |
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| Outling and Connection Dimensions (mm) |
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