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DDC-JQ Series Safety Valves for Rotary Vacuum Pump

Applications & Features：
It is a special-purpose valve installed on the vortex sheet type vacuum pump. Valve and pump connect at the same power, opensing and stops directlying control the openning and closing of the valve of the pump. When the pump quited work or the power was suddenly cut off, the valve can seal the vacuum system automatically , Fill enter pump atmosphere through air inlet of pump , prevent pump oil valve from shed the vacuum system of pollution.

  Technology parameters
Model(DDC-JQ) DDC-JQ16A DDC-JQ25A DDC-JQ32 DDC-JQ40 DDC-JQ50 DDC-JQ65 DDC-JQ80 DDC-JQ100
Nominal Diameter (mm) 16 25 32 40 50 65 80 100
Scope of application(pa) 105-1×10-2
Speed that leak gas(Pa.L/S) 6.6×10-4 6.5×10-2
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