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CONSTRUCTION FIGHTS (mm)
   
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.
  Main Technical Performance
 
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

Mounting state : Upright or Level
  Materials of Main Parts
  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
   
Outling and Connection Dimensions (mm)