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  • Automotive electronic water pump
    Automotive electric water pump

    Products detail

    DKB80 Series automotive Electric water pump

    Boosting/circulation/Variable-frequency/Low-noise/shield pump/PWM control/signal feedback








    Apply to PHEV(Parallel Hybrid Electric Vehicle),BEV(battery electric Vehicles), trains, ships and other heating circulation and cooling / coolant circulation system.




    ♦Single stage centrifugal pump

    Magnetic force transmission (shield pump structure)

    High efficiency brushless DC motor, low power consumption, high efficiency, long service life.

    With wide range operating temperature

    PWM signal speed controlling (optional PG signal feedback )

    With constant flow controlling

    Reverse polarity protection

    Dry running protection 

    Over Voltage, over current protection

    Overload, over temperature protection

    Automobile grade electronic components


    Technical description (parts in contact with the liquid)

    Pump head housing: PPS+GF

    Impeller: PPS+GF

    Shield cavity: PPS+GF

    Shaft bearing: Carbon resin composite materials+ zirconia ceramic washer

    Shaft: hollow stainless steel shaft

    Rotor: nylon injection packed

    Seal ring: EPDM


    Driving device  (Including motor)

    Driving electromagnet: magnet+nylon injection packed

    Screws and nuts: SUS 304 stainless steel

    Driving Motor : brushless motor

    Motor wire frame: PPA+GF (white)

    Pump housing: aluminum alloy

    Bracket: SUS 304 stainless steel

    Bracket hoop: US 304 stainless steel+ Damping rubber ring

    Waterproof based on IP67 rating (en60529)

    Connector:3 Pins or 4Pins (with PG signal feedback)

    Nozzle diameter:22.6mm  (inner diameter:16mm)


    Model Specifications





    With mounting bracket model suffix : SR (e.g:DKB80-12ASR)

    With PG signal feedback pin model suffix:PG (e.g:DKB80-12APG)


    Mounting instruction

    DKB80 series pumps are centrifugal pumps which require pre-filled,

    The pump installed in the lowest position of the system to ensure that the impeller is always immersed in the liquid, or pre-filled the pump before power on .


    1: Pump should not be dry-running, even though it can dry-running for 30 seconds (after 30 seconds dry-running, it will automatically stop), Dry running will makes noise, also increasing abrasion to the shaft and shaft sleeve.


    2:Use the recommended diameter pipe connecting the pump inlet, if you use a smaller diameter hose pump inlet, Due to the negative pressure in the pump, the outside air easier enter to the pump through the pipeline, it will make the pump performance degradation, and also the air bubbles make damage to the pump.


    3: As viewed from the pump inlet direction, the impeller rotates clockwise  (see the arrow on the outlet port).


    4: The pump can be installed vertically or horizontally mounted (see figure 1 ) When installed vertically, the outlet port should be upward .


     5:In order to avoid the dry- running (air get stuck in impeller),the water pump outlet port should be vertical or in the upper of the impeller. (see figure 1 )


     6: The connected pipe should be vertically mounted (or no elbow in 20cm )to make the air discharged easily, the outlet pipe should not be used less than 90 degrees

    Elbow (see figure 2).


    7: Do not use the seawater or other heavy pollution with big grain impurity liquid as the liquid medium .


    Temperature parameter

    Medium liquid temperature: -40â„? to  +120â„? (-40°F to + 248°F)

    Working ambient temperature: -40â„?to  +100â„?(-40°F to +212°F)

    Storage temperature: -40â„?to +70â„?(-40°F to +158°F)

    (up to 100 â„? but it will shorten the service life)


    System pressure

    -0.2 to 2.5 bar  ( 100â„?(212°F).

    The service life is more than 20,000 hours based on the rated voltage and 36â„?86°F) ambient temperature.


    Voltage range

    Rated 12V water pump, workable range  9V - 16V

    Rated 24V water pump, workable range  18V - 30V

    Although the motor can be used in a wide range of voltage and temperature, but excessive or too low voltage and temperature will affect the service life of the motor, the pump can not be exposed to thermal radiation ambient.


    Medium liquid: pure water, liquid mixture (Water with below 60% glycol)


     Electrical parameter

    Working Voltage (VDC) Rated Power (W) Max Flow (L/H) Max head    (M) Weight    (g)
    9V-16V(12V) 80W 1800L/H 10M 750g
    18V-30V(24V) 80W 1800L/H 10M 750g


    Connector model and Pins

    3 PIN connector   Pin 1 Pin 2 Pin 3  
      174357-2  +12V/+24VDC  PWM GND  
    4 PIN connector   B+ (4) SWP(3) NWP(2) GND(1)
    Matched connector model 7283-7449-30 +12V/+24VDC PWM  Signal feedback GND

    3 pin 4 pin.jpg


    Recommend wire size (based on 3% voltage drop)

    Wire thickness Max wire length
      12V 24V
    1.5 mm² --- 16m
    2.5 mm² 6.3m 25m
    3 mm² 8m 31m
    4 mm² 10m 40m



    1. Working ambient temperature:-40â„?/span>--120â„?/span>, should try to avoid close to three-element catalytic, gas discharge pipe system and engine during the installation, ensure the working environment temperature.

    2.The installation position of the water pump should as much as possible close to the low water level, to extend the service life of the pump.

    3. In order to reduce water resistance, should as much as possible to reduce the number elbow in piping in the installation, ensure no any elbow within 20 cm from the pump.

    4. Please use the pump far from the dusty environment, the dust is harmful to reduce the service life

    5. Pay attention to the purity of the water, avoid to jam and impeller-blocked to reduce the service life of pump.


    Curve chart

    DKB80 .jpg

    Overall dimensions


    Overall dimensions(with 4 pins)



    Overall dimensions(with mounting bracket)






    E-mail:sales@decarbonmotor.com Phone�86-519-83258950 Address�th floor,No.28 Shunyuan road,Changzhou,Jiangsu,China
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