Mini Drain Pump Features and benefits
1. Small volume design, flexible installation
The Electric DC Mini Drainage Pump has a small size and takes up very little space, making it perfect for installing in devices with limited space. It can be installed in a number of ways, including on the side, on the bottom, or in a hidden place.
2. Low voltage safe operation
It works with standard DC voltage inputs like 6V, 12V, 24V, and so on. It may be linked directly to battery systems, car systems, or low-voltage power systems. It is very safe and works well with household or portable equipment.
3. Efficient drainage capacity
Improve the design of the impeller and flow channel structure to make drainage more efficient, keep the flow and head output stable, use less power, make sure the drainage is smooth, and stop water from flowing back into the system.
4. Low noise and low vibration
It operates smoothly and quietly because it has high-quality motors and a precise dynamic balancing design. This makes it good for places where quietness is very important, such medical equipment and domestic appliances.
5. Long lifespan and high stability
The internal critical parts are built of materials that don't wear out easily and have high-quality sealing structures that keep water from leaking and corrosion from happening within. They can run continuously for a long time and last for thousands of hours.
Small DC Drain Pump Production process
To ensure product performance and stability, we adopt standardized and refined production processes:
Screening of raw materials
To make sure the quality of the product starts at the source, only choose high-strength engineering plastics, stainless steel shaft cores, and seals that won't rust.
Injection moulding with great accuracy
Injection moulding of the shell and impeller uses high-precision moulds to make sure that the dimensions are always the same and the structure is stable.
Winding and putting together the motor
The motor uses automatic winding and dynamic balancing detecting technologies to make it work better and more reliably.
putting together the whole machine
We make sure that each part fits well and that the seal is strong by standardising the assembling process on the assembly line.
testing for performance
Before leaving the manufacturer, every water pump is tested for flow, voltage, withstand voltage, and continuous functioning.
test of ageing
Do a specific amount of ageing work to make sure the product is stable in real-world situations.


Quality control system
To ensure stable product quality, we have established a strict quality control system:
Inspection of arriving raw materials
Using both sampling and complete inspection during the production process
Testing of all critical performance parameters
Test for durability and sealing before leaving the plant
System for Managing Batch Traceability
At the same time, the Miniature Water Pump can provide relevant certification support (such as CE, RoHS, etc.) according to customer needs to ensure compliance with international market standards.
| Motor type | Model | Max. vacuum kpa | Max.Flow L/min | Max.Pressure Bar | Power W | Rated voltage V | Dimensions mm | Weight g | Fixed bracket |
| Brushed | 4W12L35R37 | 35 | 1.5 | 3 | 15 | 6/9/12/24 | 101/70/40 | 298 | N |
| Brushed | 4W12M28R29 | 28 | 1.2 | 2.5 | 12 | 6/9/12/24 | 101/70/40 | 298 | N |
| Brushed | 4W12N20R29 | 20 | 1 | 2 | 10 | 6/9/12/24 | 101/70/40 | 298 | N |
| Brushed | 4W12L35R37B | 35 | 1.5 | 3 | 15 | 6/9/12/24 | 101/70/40 | 298 | Y |
| Brushed | 4W12M28R29B | 28 | 1.2 | 2.5 | 12 | 6/9/12/24 | 101/70/40 | 298 | Y |
| Brushed | 4W12N20R29B | 20 | 1 | 2 | 10 | 6/9/12/24 | 101/70/40 | 298 | Y |

FAQ
Q1: How long can the drainage pump work without stopping?
A: The product can run for a long period without stopping, however the exact amount of time depends on the model and the conditions in which it is used.
Q2: Does it have an automatic start-stop feature?
A: To get automatic start-stop control, you can add float switches or liquid level control modules as needed.
Q3: Is it possible to let water with pollutants out?
A: The usual model works for clean water or liquids that are only a little dirty. Please check the filtration needs ahead of time if you need to get rid of a lot of particle matter.
Q4: How many items do I need to order at the very least?
A: We support sample testing and small batch orders. The exact number can be worked out based on the model of the product.
Q5: Is it possible to get technical help?
A: To help customers with their projects and make sure their systems work together, we give them all the technical information they need and help them choose the right options.
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