Portable DC Circulating Diaphragm Electric Air Pump

Do Mini Diaphragm Pump has oil?

First of all, the working principle of the Micro diaphragm pump is driven by air pressure, so there is no need to add lubricating oil. In fact, adding too much lubricating oil will only cause an increase in impurities inside the pump and affect the normal operation of the pump. In order to prevent the pump body and air valve from wearing due to reduced durability, some Diaphragm Pumps adopt a lubricated pump head structure. However, this lubrication method is often detrimental to the corrosion resistance of the pump. In fact, almost all the main components of the Small Diaphragm Pump are made of high-quality synthetic rubber and engineering plastics.

The flow-through part is coated with a wear-resistant coating to ensure high corrosion resistance in the medium. In addition, the design of the diaphragm pump makes it have strong self-priming ability and is well adapted to various media.

However, the design of some diaphragm pumps may expose them to oil contamination during operation. For example, if the seal of the diaphragm pump is not tight, it will cause the medium to leak to the compressed air side, which may lead to the appearance of oil stains. In addition, if there is leakage at the inlet of the diaphragm pump, liquid will accumulate on the cylinder, which will form a liquid pool in the lower part of the cylinder, which may also lead to the formation of oil stains. Also, if the liquid level in the pump body of the pneumatic diaphragm pump is too high, it will cause insufficient air area and form oil stains.

To sum up, although the design of some diaphragm pumps may cause oil contamination during operation, not all diaphragm pumps have this problem. Therefore, the inside of the pump must be cleaned in time during use to prevent the accumulation of impurities from affecting the normal operation of the pump.

What is the specification parameter for DQB020-A Mini Air Pump?

• Voltage:DC3.0V
• Current:350mA
• Flow rate:0.4L/Min
• Pressure:300-400mmHg

Technical specification

Dimension Drawing

Performance test chart

Application

What is the difference between single and double diaphragm pumps?

Double diaphragm pumps have an extra diaphragm in their structure, while single diaphragm pumps have only one diaphragm. The two diaphragms of a double diaphragm pump are located between the inlet and outlet, and the fluid is transported by controlling the pressure difference. The diaphragm of a single-Diaphragm Metering Pump is located between the inlet and outlet, and the fluid is transported through the movement of the diaphragm.