Specification
NO Items Specs
1 Sizes and weight 105.5x84x64;480g
2 Dimension of inlet 27mm
3 Dimension of outlet 27mm
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 1.9A(2 phase)or 3.6A(3 phase)
13 Max flow rate 42L/Min(11GPM)  ---2 phase                  60L/Min(19GPM) 

---3 phase
14 Max Static Head 3.5m(11.5ft)---- 2 phase                             5.0m

(16.5ft)---- 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 3.5m..
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
ZK50A-1223S 12 2.60 2.30 2000 31.2
ZK50A-1223A     
ZK50A-1230S 12 3.00 3.00 2200 36.0
ZK50A-1230A     
ZK50A-1235S 12 3.80 3.50 2500 45.6
ZK50A-1235A     
ZK50A-2423T 24 1.30 2.35 2000 31.2
ZK50A-2423S     
ZK50A-2423A     
ZK50A-2435T 24 1.90 3.50 2500 45.6
ZK50A-2435S     
ZK50A-2435A     
ZK50A-2440S 24 3.00 4.00 2900 72.0
ZK50A-2440A     
ZK50A-2450S 24 3.60 5.00 3600 86.4
ZK50A-2450A     
Remarks The current above is open outlet current, when contact to circulation system

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