FAQS

We hope you find these frequently asked questions about BODENFLO products useful and informative.

BODENFLO lists frequently asked questions about DC miniature air vacuum pump product basics, purchasing guidance, quality assurance, etc. We hope can help our customers.

Miniature Pumps Terminology

Q: What is DC?

This is Direct Current. Most miniature pumps on the market use low-voltage DC. A transformer or low-voltage battery is often required to step-down the AC voltage to a suitable level for the micropump, which is normally 3V, 6V, 12V or 24V DC.

Q: What is a Watt?

A watt is equivalent to one joule per second, corresponding to the power in an electric circuit in which the potential difference is one volt and the current one ampere. A watt is equal to the voltage multiplied by the amperage. This is how your electric company keeps track of how much energy you consume.

Q: What is BODENFLO?

BODENFLO® is our Chinese trademark brand name for our miniature pump series, registered in November 2021. Since 2003, our company has been producing high quality BODENFLO® pumps and has a reputation for providing innovative solutions along with excellent customer service.

 

The Basics

Q: What are the top 4 comparing factors to look for before purchasing miniature pumps? 

  1. Make sure you know the requirements for your project, then when looking at options, compare Flow rate, Pressure,Vacuum, and Current.
  2. Compare pumpsize and weight.
  3. Understand the wattage and voltage that the equipment
  4. Make sure that the products have verifiable quality.

Q: How do I know which model will work best for my needs?

There are several factors that determine which model will work best for your needs. These include flow rate, pressure, size, frequency of use (or how often you plan on using it), and what types of diaphragm materials you plan on using it with.

Q: What is micro diaphragm pump and how does it work?

Miniature diaphragm air vacuum pump is driven by a motor driven eccentric wheel to drive the diaphragm inside the pump to do reciprocating motion and the pump cavity one-way valve group open and close, circulating driven airflow, therefore generating negative and positive pressure.

Q: Do all micro air vacuum pumps have the same motor type?

There are two different types of motors used in these products: brushless DC motors, and brushed DC motors. Each one has its own advantages and disadvantages depending on what kind of application you need it for. 

Q: How does the micro pump start?

Brushless motor version of the micropump:

  • Connect the red wire to the positive pole of the power supply
  • Connect the black wire to the negative pole of the power supply

Brushed motor version of the micropump:

  • The red dot is connected to the positive pole of the power supply
  • The other side is connected to the negative pole of the power supply

Q: What is the difference between brushed version mini pumps and brushless version mini pumps?

Brushless(BLDC) version of the micropumps:

  • Advantages: long life, low electromagnetic interference, low noise, especially suitable for continuous operation around the clock or frequent start and stop; many optional functions (PWM, CW&CCW, FG, BRAKE);
  • Disadvantages: Negative pressure, positive pressure, flow and other parameters are smaller than the brushed version; the cost is higher than the brushed version.

Brushed version of the micropumps:

  • Advantages: low cost, large motor torque and high parameters.
  • Disadvantages: can not work for a long time; the life of brushed micro-pumps is shorter than that of brushless micro-pumps; it will interfere with electronic components.