Shenzhen DYX Technology Co.,Limited
Shenzhen DYX Technology Co.,Limited
Home> Products> Mini Diaphragm Pump> Mini Submersible Water Pump> 18v small dc submersible water pump
18v small dc submersible water pump
18v small dc submersible water pump
18v small dc submersible water pump
18v small dc submersible water pump
18v small dc submersible water pump
18v small dc submersible water pump
18v small dc submersible water pump
18v small dc submersible water pump

18v small dc submersible water pump

$55-49999 Piece/Pieces

$4.5≥50000Piece/Pieces

Payment Type:L/C,T/T,Paypal
Incoterm:FOB,CIF,EXW
Transportation:Ocean,Land,Air,Express
Port:Shenzhen,Shekou,Yantian
Product Attributes

Model No.DQB421-SB-2

Keywordssmall submersible pump

Rated VoltageDC18V

CurrentCurrent

Working Temperature5℃~55℃

Power0.9W

Flow15500mL/H

MediaWater

Life Test20000 cycles

Nose40dB

OEM,ODMSupport

Packaging & Delivery
Selling Units : Piece/Pieces
Product Description


What pump is used in the humidifier?

The type of pump commonly used in humidifiers varies depending on the specific humidifier design and requirements. A Micro Submersible Pump is one possible option.

Micro submersible pumps have various advantages, such as long service life, no need for maintenance, small footprint, high efficiency, and low power consumption. This makes it widely used in situations that require long-term continuous work, such as agricultural irrigation, water feature fountains, etc. For humidifiers, micro submersible pumps may be chosen due to their stability and efficiency.

However, it should be noted that different humidifier designs and functional requirements may use different pump types. Therefore, when choosing a pump for humidifiers, it is necessary to choose according to actual needs and scenarios. If considering using a Miniature Submersible Pump, it is recommended to refer to the specific model and specifications of the humidifier, as well as the performance parameters of the DC Submersible Pump, to ensure compatibility and compatibility between the two.



mini submersible pump p


What are the commonly used humidifier pump types besides micro submersible pumps?

In addition to micro submersible pumps, the following pump types are commonly used in humidifiers:

Atomizing humidifier pump: Atomizing humidifier pumps are usually used in conjunction with atomizing humidifiers, which can convert water into tiny mist, thereby increasing indoor humidity. This type of pump usually has the characteristics of high efficiency and silence, making it suitable for use in home or office environments.

Mini Diaphragm Pump: Diaphragm Pumps are also common in humidifiers. It utilizes the reciprocating motion of the diaphragm to inhale and expel liquids, and has the characteristics of simple structure and easy maintenance. Diaphragm pumps are usually suitable for low flow and high pressure situations.

Mini Peristaltic Pump: The Peristaltic Pump squeezes the hose through rollers, causing liquid to form a certain flow inside the hose. The application of this pump type in humidifiers is gradually increasing because it has advantages such as no leakage, low shear force, and easy cleaning.

submersible pump size

What should be noted when using micro submersible pumps for humidifiers?

Power supply and voltage stability: Ensure power supply stability and meet the working voltage requirements of the Submersible Pump . High or low voltage can cause damage to the electric submersible pump and affect its normal operation. Meanwhile, appropriate cables should be used to avoid voltage drops or wire heating caused by excessively long power lines.

Waterproofing and insulation: As submersible pumps operate in water, their waterproof performance is crucial. Ensure that the waterproof measures for the pump body and cables are in place to avoid electric leakage or short circuits. At the same time, check the insulation performance of the submersible pump to ensure that it meets safety standards.

Installation position and fixation: Choose a suitable installation position to ensure that the submersible pump can be stably placed in the water. Prevent the pump body from being impacted or vibrated by water flow to avoid affecting its normal operation. Meanwhile, use appropriate fixing devices to secure the submersible pump to prevent it from moving or tilting.

Running time and intermittency: Although submersible pumps have the ability to work continuously, prolonged continuous operation may lead to overheating or wear. Therefore, it is recommended to set appropriate operating times and intervals to give the submersible pump sufficient rest time.

Water quality and filtration: The water used in humidifiers should be relatively pure to avoid containing large amounts of impurities or particles. Filters can be installed at the water source to reduce impurities entering the submersible pump and extend its service life.

submersible water pump application1


How to check the insulation performance of micro submersible pumps?

Using a multimeter: First, ensure that the Small Submersible Pump has been powered off and that the power plug is wrapped with insulating tape to avoid direct contact. Then, connect one test electrode of the multimeter to the power plug, and the other test electrode to the wire of the submersible pump. Set the multimeter to the resistance position and read the resistance value. If the resistance value read is very large and exceeds the measurement range of the multimeter, it indicates that the insulation of the submersible pump is good. If the resistance value is small and below the standard value, it indicates that the insulation performance of the submersible pump is poor and needs to be treated or replaced.

Using an insulation tester: This is also a commonly used inspection method. Firstly, ensure that the testing environment is dry and prevent the submersible pump and testing instrument from getting damp. Then, follow the instructions for using the tester and connect the testing electrode of the tester to the relevant parts of the submersible pump. After the test is completed, determine the insulation performance based on the test results.


Technical Specification

Voltage     DC18V Current     50mA
Static water head pressure 55±10CM Operating flow rate@waterhead pressure 15CM 28000~34000 mL/h
Output power consumption 0.13W Operating Noise <40dB


What are the effects of high or low voltage on submersible pumps?

Voltage too high:

Motor damage: When the voltage is too high, the motor in the 1.5 inch submersible pump may overheat due to the voltage, and prolonged operation may cause motor damage, thereby shortening the service life of the submersible pump.

Reduced efficiency: Excessive voltage may cause unstable operation of submersible pumps, leading to a decrease in working efficiency.

Safety hazards: Excessive voltage may also cause potential safety issues, such as overheating and leakage of the pump body. In severe cases, it may damage electrical components or cause a fire.

Voltage too low:

Efficiency decline: When the submersible pump operates under insufficient voltage, its head and flow rate will decrease, leading to a decrease in working efficiency.

Shortened lifespan: Low voltage can make it difficult for the submersible pump motor to operate, accelerating the consumption of lifespan. In the long run, the parts of submersible pumps may wear out or malfunction due to frequent overloading.

Difficulty in starting: Low voltage may cause difficulty or even inability to start the submersible pump.

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