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    Proportional controller LPN
    Low pressure negative proportional control valve LPN

    For stepless(infinitely variable)capacity control of air compressors:Suction control valves,bypass valves,bleed valves and engine speed controllers are govermed by the signal from the proportional controller.

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    Details Introduction

    Operation:

    Controllers LP5E are positive acting.Within the control band(see diagram)they give a proportionally rising singal at A on increasing pressure at E.

    Controllers LPN are negative acting.Within the control band(see diagram)they give a proportionally rising singal at A on increasing pressure at E.


        


    Adjustment:

    The set point is adjusted by turning the hand wheel

    * to a higher pressure: clockwise

    * to a lower pressure: counterclockwise


    Ordering details

    Type、nozzle(0.8、1.0、1.2、2.0) 


    Proportional band (control band):

    increase:  install an outlet nozzle with larger diameter

    decrease: install an outlet nozzle with smaller diameter


    Technical parameters

    反比例閥 LPN

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