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Condition : New Country of shipping : China
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Product Specification

Condition New

Product Description

    1. Product Introduction:

    1)The place selection valve is mainly used on the dental unit equipped with central suction system
    2)In the central suction system,every dental unit must be equipped with a negative pressure control device-Place selection valve
    3)Place selection valve is suitable for the central negative pressure device of both dry suction and wet suction

    2.Function Description:
    1)As soon as the suction hose is removed from the holder,the micro-switch(or the sensor switch)on the high-volume suction holder or saliva ejector holder will open the potentiometer to open the place selection valve
    2)As soon as the place selection valve is opened, the water and air in high-volume suction hose and the saliva ejector hose will be sucked to the central suction system through the place selection valve
    3).The two-position three-way solenoid is used in the place selection valve to open or close the membrance in the valve to open or close the negative pressure
    a)when the place selection valve is closed,the #1chamber in the valve is connected into the external air and the membrane of the valve is closed
    b)when the place selection valve is working,#2chamber in the valve is connected to the negative pressure hose between the place selection valve and the suction hose, the connection between 1# chamber and the atmosphere is closed.

    3.Technical Data
    Item                                                      Techinical Data
    Fluid in use                                              Air and water
    Ambient                                                   10"C~40"C
    Atmospheric pressure                                      860Hpa~ 1060Hpa
    Standard voltage of soleniod                              24V AC/DC
    Soleniod Power                                            1.3W
    Solenoid pretection structure                             Dust Proof
    Valve material                                            PBT
    Color of Valve                                            Color Standard:PANTONE
                                                              Color Code:423C
    Package Dimension(mm)                                     165*100*45mm

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