Electric Small Silent Submersible Water Pump

• Customization: Available
• Max.Head: 4m
• Max.Capacity: 36L/Min
• Model NO.: DC50D
• Driving Type: Motor
• Material: ABS,Pes/Sps/PPS/PA66+30%GF (Optional)
• Structure: Single-stage Pump
• Assembly: Liquid Pumps
• Power: Electric
• Start Up: Electric Pump
• Type: Positive-Displacement Pump
• Application: Submersible Pump
• Industry: Air Conditioning Pump
• Media: Water,Refrigerating Fulid
• Performance: Automatic Pump
• Theory: Centrifugal Pump
• Protection Level: IP68
• Service Life: 30,000hrs
• Transport Package: Standard Export Packing or OEM Packing
• Trademark: ZKSJ
• Origin: China
• HS Code: 8413709190
• Production Capacity: 100, 000 PCS/Month

Product Description

Specifications

NO.	Item	Specs
1	Dimension and weight	103.5mmx107mmx64mm;480g
2	External diameter of outlet	20mm
3	External diameter of inlet	20mm
4	Driving mechanism	Brushless, magnetic separation
5	Material of pump shell	ABS,PES/SPS/PPS/PA66+30%GF (Optional)
6	Condition of use	Can continuously work, submersible or land use (not self-priming)
7	Suitable medium	Water, oil, or normal acid/ alkaline liquids (Pre-test needed for special liquid)
8	Max working temperature	60ºC(for T sub-series) or 100ºC(for S/A sub-series)
9	Power consumption	2.5W~45.6W(for T sub-series) or 2.5W~86.4W(for S/A sub-series)
10	Rated voltage	12Vdc or 24Vdc
11	Working voltage range	5Vdc ~ 12Vdc or 5Vdc ~ 24Vdc
12	Max load current	2.1A (for T sub-series) or 3.8A(for S/A sub-series)
13	Max horizontal flow rate	36L/MIN(for T sub-series) or 41L/MIN(for S/A sub-series)
14	Max static lift	4M(for T sub-series) or 6.5M(for S/A sub-series)
15	Noise class	IP68(suitable for submersible installation)
16	Waterproof class	Can be more than 30,000hrs
17	Life span	Can be suitable solar panel, batteries, source adapter or other power module
18	Power supply	Water protection, dry-run protection, stall protection, stuck protection (functions are optional for customization)
19	Protection function	Speed adjustable by PWM signal, 0~5V analog signal or potentiometer (functions are optional for customization)
20	Power regulation function	IP68(suitable for submersible installation)

 

Features

• Small size, high efficiency, maintenance-free, low consumption, strong anti-jamming ability, stable performance
• Brushless with no pollution, adopts high-performance ceramics shaft and high-precision carbon fiber sleeve together (stainless steel shaft optional for reducing cost)long life span
• Stator and control circuits are completely sealed by epoxy resin completely separated with rotor, waterproof, avoided water-leakage problem which long exists in normal DC motor pump products
• Protection functions can be customized such as lock protection, dry-run protection and so on.
• Wide range of working voltage; parameters can be adjustable, e.g. 12VDC pump can have lift of 1m and lift of 3m with the same pump body.
• For A/S sub-series,soft-start without impact,can be directly powered by solar panel; circuit parts and motor parts completely separated, no electronic components inside pump body; pump body is made of high-temperature-resistant material, so pump can continuously work at fluid with high temperature (as high as 100C); have several protection functions, such as impeller&rotor lock protection, polarity reverse-connected protection, over-load protection, over-current protection, etc.
• For A sub-series, it's easy to regulate the power/speed of pump via PWM signal/ 0~5V analog signal/ potentiometer; flow rate & lift can be smoothly adjusted
• Reduced the mortality to 0.05% after long-time study by R&D dep.
• Lift of pumps can be doubled when they are connected in series
• Suitable for submersible installation or land use (should be located below fluid level)
• Offer ODM serve for pump and other controller system

Difference between 2phase & 3phase brushless DC pump


Electrical parameters (only for reference,parameters can be customized for specific requirements)

Model No.	Voltage	Max load current	Max static lift	Max flow rate	Power consumption
	V(dc)	A	M	L/H	w
DC50D-1220T	12	1.57	2.00	1300	18.8
DC50D-1220S
DC50D-1220A
DC50D-1230S	12	3.0	3.00	1700	36.0
DC50D-1230A
DC50D-1240S	12	3.8	4.00	2150	45.6
DC50D-1240A
DC50D-2430T	24	1.5	3.00	1700	36.0
DC50D-2430S
DC50D-2430A
DC50D-2440T	24	1.9	4.00	2150	45.6
DC50D-2440S
DC50D-2440A
DC50D-2450S	24	2.9	5.00	2300	69.6
DC50D-2450A
DC50D-2465S	24	3.6	6.50	2450	86.4
DC50D-2465A
NOTE	Information including continuous working time, working temperature and medium is required to be pre-confirmed with professionals; pump cannot work with high temperature or corrosive fluids. When pump is connected into circulation system, load current will be reduced to 70~85% of Max working current (opening outlet current). The head means the Max vertical lifting height of water. The flow is 0L/MIN@max head. The max flow rate means flow rate with no lifting height(according to the curve bellow)

Difference between 2phase & 3phase brushless DC pump

2phase  (T sub-series)

Hall sensor driving, circuit board should be placed inside pump body

3phase (S/A sub-series)

NOTE that 3phase dc is completely different with 3phase AC; 3phase DC means 3 pairs of magnetic polarity & sensor-less, power supply  the same with common DC pump(two wires: positive and negative) Intelligent program-driving, sensor-less, circuit can be put outside of pump body (main factor that pump can be high-temperature resistant) Speed adjustable by PWM, 0~5V signal or potentiometer(optional) Lock protection,reverse-connected protection, over-vol.&over-current protection, over-temperature protection Soft start, no current impact, can be contact directly with solar panel

Diagram of 3phase brushless DC pump connection





Dimensions of pump



production test





Exploded diagram of the product