Understanding the Role of an Air Compressor Pressure Switch

For anyone working with air compressors, be it for professional purposes or DIY projects, learning the ins and outs of the equipment is crucial. One major component of an electric air compressor you must be familiar with is the pressure switch.

By understanding the role of an air compressor pressure switch, including its purpose and operation, you can maintain your air compressor better and prolong its life. This will make your projects more efficient and enjoyable.

What Is an Air Compressor Pressure Switch?

A pressure switch is an essential component of any electric air compressor. It is responsible for monitoring and controlling the air pressure inside the compressor’s tank. The switch ensures the compressor doesn’t over-pressurize or lose too much air pressure, thus maintaining its optimal PSI level.

The air compressor pressure switch has a diaphragm that expands as the tank pressurizes, pushing on a mechanical device to disconnect electrical contacts when the tank reaches the correct pressure. As you use the air compressor and the pressure inside the tank declines, the diaphragm retreats, the electrodes reconnect, and the compressor’s motor turns back on to repressurize the tank.

Why Is an Air Compressor Pressure Switch Important?

Air compressor pressure switches are essential safety features that protect the air compressor, the user, and the equipment connected to the air compressor. As mentioned before, an air compressor pressure switch maintains the optimal pressure levels, which is essential for safety. Over-pressurized tanks can be hazardous and may lead to accidents such as explosions or equipment damage. The pressure switch ensures that the tank’s pressure stays within safe limits.

The air compressor pressure switch also extends the useful life of your equipment. By avoiding over-pressurization, you protect your air compressor and the connected tools from undue wear and force.

Tips for Maintaining Your Air Compressor Pressure Switches

To utilize the air compressor pressure switch to its full potential, follow the manufacturer’s suggested regular maintenance schedule. Check the pressure switch regularly for any signs of wear and tear. Clean all parts, including the diaphragm, and ensure all connections are secure and that the copper contacts are clean and without corrosion and rust. This prevents unexpected malfunctions during operation.

Make sure the pressure switch is correctly installed and adjusted according to the manufacturer’s recommendations or seek the assistance of a professional to do it for you. Monitor pressure levels by periodically verifying the pressure gauge during operation to ensure the pressure switch is accurately controlling the tank pressure.

Pro Tip

You may feel like the compressor is not turning on or off at the designated PSI it was preset for, yet the tank pressure gauge is reading accurately. In this case, it is recommended to install another pressure gauge to ensure the original is reading the PSI accurately.

Understanding the role and operation of air compressor pressure switches is crucial for anyone using air compressors in their work or DIY projects. By knowing how it functions and maintaining it properly, you can enhance the safety and efficiency of your equipment and prolong its life.