Water heating mattress pump for hotel/guesthouse

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    60ºC (2 phase) or 100ºC(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.