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Specification
NO    Items    Specs
1    Sizes and weight    100.5x84.5x64;480g
2    Dimension of inlet    20mm
3    Dimension of outlet    20mm
4    Driving method     Brushless, Magnetic , 2 phase or 3 phase
5    Pump material    PA66+GF30% (optional)
6    Condition of use    Continuously 
7    Fluids     Water, oil, acid and alkali solution etc
8    Max working temp    60 Celsius(2 phase)or 100 Celsius(3 phase)
9    Power consumption    2.5W~45.6W（2 phase）                       

2.5W~86.4W（3 phase）
10    Rated voltage    12Vdc or 24Vdc
11    Voltage used    5Vdc ~ 12Vdc or 5Vdc ~ 24Vdc
12    Max rated current    2.1A(2 phase)or 3.8A(3 phase)
13    Max flow rate    36L/Min(9.5GPM)  ---2 phase                 41L/Min(11GPM) -

--3 phase
14    Max Static Head    4m(13ft)---- 2 phase                             6.5m(21ft)-- 

3 phase                                              
15    Noise    <40dB
16    Water proof class    IP68(can be submersible installed)
17    Life span    More than 30000hrs
18    Power supply    Solar panel; DC electric source; battery

Features
Brushless, permanent magnetic rotor, maintenance-free, long life
small size, high efficiency, low consumption, low noise
Ceramic sleeve and ceramic shaft 【optional】
Stator and circuit board sealed by epoxy resin, completely water proof
Parameter adjustable, 12v pump’s head can be 1.5m to 4m..
Can be customized

Difference between 2-phase and 3-phase sensor less BLDC pump
2-Phase    Drived by sensor which should be put inside the pump body
3-Phase    Drived by program, sensor less, whole control circuit can be put outside
Speed adjustable by PWM, analog signals(0-5v) or potentiometer【optional】
Locked-rotor and reverse connection protection
Automatic overload protection and over-temperature protection
Soft start with low in-rush current, great for PV panel

Parameters (The technical specification only for reference, it can be customized)
Model    Voltage    Current    Head    Flow    Power
     V (dc)    A    m    L/H    w
ZK50D-1220T    12    1.57    2.00    1300    18.8
ZK50D-1220S                    
ZK50D-1220A                    
ZK50D-1230S    12    3.0    3.00    1700    36.0
ZK50D-1230A                    
ZK50D-1240S    12    3.8    4.00    2150    45.6
ZK50D-1240A                    
ZK50D-2430T    24    1.5    3.00    1700    36.0
ZK50D-2430S                    
ZK50D-2430A                    
ZK50D-2440T    24    1.9    4.00    2150    45.6
ZK50D-2440S                    
ZK50D-2440A                    
ZK50D-2450S    24    2.9    5.00    2300    69.6
ZK50D-2450A                    
ZK50D-2465S    24    3.6    6.50    2450    86.4
ZK50D-2465A                    
Remarks    The current above is open outlet current, when contact to circulation system 

the current will cut down to 55%~70% of Rated current.