Long life ultra quiet automatic electric centrifugal 6V 12V micro dc brushless water dispenser pump mini dc water cooling pump

China Dongguan Hai Mi factory wholesale CE ROHS qualified long life low noise safe sanitary 0.1-2.5W 30-180L/H 30-100CM micro DC 5V 6V 12V Water Pump for Water dispenser, Fountain, Aquarium, Hydropnics, Green wall decoration, Smart garden herbs, Plant & flowers watering, Pet drinking water dispenser, Water tank, Fish pond, Humidifier, Solar water circulation, Water circulation of home appliance, etc.

Pump Main Features:

1. Compact size and light weight; Very good structure design, Workable pump filter to avoid pet      hair coming into pump inside.

2. High efficiency, low power consumption.

3. Single and three-phase motor can be supplied.

4.  Environmental protection and safe working voltage: No waste, no corrosion, no explosion. Low safe voltage: from 4VDC to 12VDC.

5.  High efficient BRUSHLESS DC MOTOR with long lifespan: over 30000 hours.

6.  Heavy duty work: It can run 24 hours continuously.

7.  Low noise, within 30db

8. Imported main materials, advanced magnetics driving technology, wear-resistant and corrosion-resistant rotor, strong and wear-resistant shaft to avoid broken easily. Good seal without leakage at all.

9.  Food grade materials, no pollution and no radiation.

10.  Wide range power supply: DC regulated power supply, Solar panel, Photovoltaic Panel, Battery, Car cigarette lighter, etc.

11.  It is better operated in PURE WATER to ensure its lifespan.

12.  Specifications and functions can be customized, such as over voltage protection, over current protection, over-temperature protection, circuit protection, Reverse Polarity protection, run-dry protection, PWM speed control, etc.

Main Specifications:

• Working voltage range: 4-12VDC
• Rated working voltage: 4VDC/5VDC/6VDC/12VDC (Please choose one, other rated working also can be supplied.)
• Optional rated power: 0.1-2.5W
• Optional static water head height range: 10-100cm
• Optional static flow rate range: 30-180 L/H
• Wire: 30-50cm naked wire (Other wire also can be supplied)
• Low noise: Within 30db
• Max working temperature: 70degC
• Pump dimensions: 39.0*43.0*37.0(mm)
• Inlet/Outlet OD: 12.0mm / 8.0mm

Application: Water dispenser, Fountain, Aquarium, Hydropnics, Growing plants, Green wall decoration, Smart garden herbs, Plant & flowers watering, Pet drinking water dispenser, Water tank, Fish pond, Humidifier, Solar water circulation, Water circulation of home appliance, etc.

Specifications:

Product name	HM2502-3
Working voltage range	4VDC-12VDC
Rated working voltage	4VDC/5VDC/6VDC/12VDC (Other rated voltage can be supplied.)
Optional rated power	0.1-2.5W
Optional static water head range	10-100 cm
Optional static flow rate range	30-180 L/H
Pump size	41.6*37.0*44.0 (mm)
Inlet/Outlet outer diameter	12.0mm / 8.0 mm
Motor type	Brushless DC motor
Media	Clean water
Media condition	PH value: PH5-10(weak acid and weak base), workable in water. Submersible Water Pump.
Max noise	Under normal working condition,(10cm over the test instrument) <3 0dB
Idea lifespan	30000 hours
Ambient temperature	-40 ℃ to 70 ℃
Media temperature	0 ℃ to 70 ℃ ( Under room temperature surroundings, fluid medium temperature)
Power supply	DC regular power supply, battery, solar panel, photovoltaic panel, car cigarette lighter.
Customized functions   (Optional)	Reverse Polarity protection, over voltage protection, over current protection, over-temperature protection, circuit protection, run-dry protection, PWM speed control, etc.
Application	Fountain, Aquarium, Hydropnics, Growing plants, Green wall decoration, Smart garden herbs, Plant & flowers watering, Pet drinking water dispenser, Water tank, Fish pond, Humidifier, Solar water circulation, Water circulation of home appliance, etc.

Pump Dimension & Curve Graph

CAUTIONS:

1. Run-dry operation (no water inside of the pump) is strictly prohibited. If you need run-         dry protection function, please do inform us before you place an order.

2. Do not drop, knock, throw them to the ground when you receive the goods, although they were well tested for performance and appearance before shipment. It will effect their performance and may cause lound noise and heavy vibration.

3. Reverse Polarity is prohibited. If you need reverse polarity protection function, please do inform us before you place an order.

4. Pumps are prohibited under the long-term exposure to strong sunlight and heavy rain.

5. Pumps are prohibited to use in strong acid solution (PH value≤PH5-10, salty: 20%), Please tell us your special requirement, when place an order.

6. Keep the pump appearance and working fluid clean. The working fluid must be clean water.

7. Please remove the pump and wash it with clean water, dry it and wrap it, put it away, if you will not use it for a long time. Next time when you use it, pour water into the pump inside and wash it, shake the pump with your hand slightly, then, put 60%-80% rated working voltage to power the pump and test, to watch if the working current is regular. After that, turn the working voltage to the complete rated working voltage, watch 1- 2 hours to see if the temperature rise is normal.

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Why choose us

About Us

FAQ:

1. HOW TO CHOOSE OUR BRUSHLESS DC PUMP?

You must seriously look into some of the following parameters or to provide us with these parameters, when you choose a brushless DC pump:

1) Pump model: Firstly, to choose the right and suitable model.

2) Power supply of the brushless DC pump:

A. Transformer switch power supply: Switch to the correct voltage and current the pump supplied.

B. Battery power supply; how much Battery capacity Amp / hour?

C. Solar power supply; Select the correct open circuit voltage and short-circuit current.

3) Working voltage: 4.5VDC-24VDC (Any voltage from the voltage range)

4) Power: 0.65—120W

5) Static water head and static flow rate:

Static water head: It measures at zero flow rate that the water goes up to its max height.

Static flow rate: It measures when the pump outlet does not connect any pipe, then the water flow comes out in a certain time. For example: To choose a pump that has 3 L/min flow rate at 2 meters height, then, the static water head of the pump must be higher than 3 meters that we can get a 3L/min flow rate at 2 meters water head height. (For more details, please refer to the flow rate VS water head curve, or ask our sales department).

6) Application environment:

Ambient temperature    Humidity    Ventilation     Use device submersible or non-submersible, etc.

7) Medium: water, engine (edible) oil, anti-freezing liquid and other fluid temperature; PH value.

8) Choice of pump performance: How to choose a good quality and reliable brushless DC pump

a. Outward appearance: Elegant design and nice look, exquisite production

b. Electrical performance: Low vibration, low noise, low start current, high efficiency, low rising temperature.

c. Structure: very simple and convenient installation, low and convenient maintenance.

d. Regular and professional manufacturer and dealer.

2. HOW TO INSTALL OUR BRUSHLESS DC PUMP?

1). The best installation way of a brushless DC pump is in horizontal direction, the outlet is upward, (If you require another installation method, please inform us when you purchasing, to enable us to adjust all the specifications of the pump to a best working condition.).

2). To installs an anti-vibration cotton pad to the bottom of the pump.

3). The pump inlet and outlet should be connected to a silica gel hose, if a hard objects instead, anti-resonance should be attendant.

4). To install a brushless DC pump in a water pipe: If a hard tube connected to the inlet and outlet of the pump, the inlet and outlet will be marked with a standard thread, when you choose our pumps.

5). No beating and throwing the pump, when installing.

6). Please install and use the pump according to its working conditions (You’re better tell us your appliance working condition, fluid working temperature, power supply, working voltage, etc. When test the pumps, please pay attention to the power polarity, Power reverse polarity is strictly prohibited.).

7). When choose an installation place, please keep away from the strong magnetic objects.

3. HOW TO USE OUR BRUSHLESS DC PUMP?

1). Turn on the regulated power supply, transform the power to a fixed voltage which supplied by the pump , such as 12VDC or 24VDC the pump supplied.

2). Put the pump out of the box and find out the power cord positive and negative electrodes; the red line is for the positive polarity, the black line is for the negative polarity( if the wires are other colors, it also will be marked the positive and negative poles, please check the test report attached with the goods.).

3). Put one-third of the pump body in to water. Please do not put the whole body into water if the pump is not submersible, in case the pump burns off. However, the inlet and outlet of the pump should be in water.

4). To connects the positive pole of the power line to the cathode of the pump, the negative pole to the anode of the pump, so that the pump can start and operate normally.

5).  Please try to put the pump into clean water to avoid blocking by solid, dirty substances, etc.

6). Please operate the pump within the specifications that we offered, please see the test report.

7). Please do not move, bit, or toss the pump heavily, in case of affecting the performance of the pump.

8). It is easy to use the pump if you read the test report, manual or specification sheet carefully in advance. Should you have any question or problem, please feel free to contact us.

4.  How to slove the problem of pump do not run and no any sound, when apply the power to the pump?

You need to check the electric circuit and Wiring.

5.  Pump do not run and make buzzing sound, when apply the power to the pump:

You need to check if the power is too small. (Power supply ≥ 1.5 times as much as the pump power)Meanwhile, check the pump rotor to see if there is dirt blocked the pump.

6.  Pump does not spray water:

There might be many causes:

You’d better check if there is air or any other solid matter coming into the water pipe which is connected to the inlet of the pump, to ensure there should no air or any other solid matter in the pipe and the pump should have enough liquid inside.

In this matter, if the pump still cannot work, you need to open the pump to check inside of the pump to see if the shaft was broken, the gasket was broken or misplaced, the rotor was displaced, etc.

If the rotor was displaced and is difficult to move, to check the shaft and shaft sleeve, if they combined too tight, the rotor will generate heat during operation, thus, the temperature will increase, and on the other hand, the power transmitted by the magnet will be decline as a curve with the increased temperature.

Usually, Within the working limited temperature of the magnet, its ability of power transmission is reversible, in the opposite, it is irreversible, because when the magnet cooled down, it lost its ability of power transmission, and cannot restored anymore.

If it is not handled promptly, the increasing temperature will fade the magnetism of the magnet away. The filtering and high temperature media should be considered to ensure the working temperature of the rotor cannot over its limits.

When considering of the speed, you’d better check the pump speed itself to see if it is normal, and the pump body temperature is high or not, the pump has water or air inside or not, you need to ensure there is no water and air inside the pump, stop and restart the pump at least 3 times and let the pump work several minutes to make sure it operates normally.

7. Pump cannot achieve required water head and flow rate when works:

You need to check if there is air or water inside of the pump chamber; if there is, remove them, re-start and stop the pump at least 3 times.

8. There is abnormal sound when the pump operates:

You need to check if there is dirt and solid particles, remove them and clean the inside pump chamber.

9. Motor gets heating when operates:

You need to check if the rotor is blocked by other particles, to check if the power supply is normal, to check if the pump housing is broken and water penetrates into the pump housing.

10. There is large vibration and loud noise, when pump operates:

Put the pump on a smooth board or desk, connect to the power supply and turn to a rated working voltage, if the pump sounds noisily with large vibration, hold the pump in your hand: if you feel the vibration but no noise, the causes may be that the rotor deviated, the shaft hole enlarged or the impeller damaged or deformed. Solutions: change new materials; if you feel slight vibration and low noise install Anti vibration soft sponge/pad; if you feel loud noise and large vibration, replace the rotor and cover.

11. Pump has loud noise while operating:

You need to check all the components inside the pump, such as the rotor, shaft, impeller, gasket, O-rings, front cover and the pump housing, etc. Check the power supply and if there is dirt and solid objects inside the pump housing.

12. Pump gets Leaking:

The pump housing might were not well assembly or the seal ring was not installed.