Maintaining the correct working pressure in the compressed air system is one of the key features of pneumatic systems. The device responsible for controlling this parameter is a pressure switch, also known as a pressure switch. How does a pressure switch work? how to connect a pressure switch to a compressorto fulfill its function? You will learn about all this in this article.
Pressure switch - adjustment and principle of operation
The purpose of the pressure switch is to trigger a reaction that results in switching off the operation air compressors. The pressure switch disables the compressor when the switch-on or switch-off pressure exceeds previously set values. Moreover, the pressure switch will also be responsible for restarting the compressor when the pressure values return to the previously set standards.
How does a pressure switch work? A pressure switch is a sensor that measures the pressure difference. How it is built pressure switch for the compressor? Construction pressure switch is relatively simple. Its basic construction element is a relay, which is equipped with three electric cables and two pressure cables. The device measures the difference between the pressure value in two pressure lines and, on this basis, determines whether the pressure is maintained in the desired range. If the measurement indicates that the pressure has reached an undesirable or dangerous level, the pressure switch cuts off the electrical current, thereby reacting to the incorrect pressure level. In this way, depending on the situation, it turns off (when the pressure is too high) or turns on (when the pressure is too low) the compressor. This allows for smooth operation pressure regulation in the compressor and eliminates the risk of a dangerous increase or decrease in pressure. In this way, the pressure switch has a significant impact on operation - that is, switching the compressor on or off.
Importantly, it is responsible for controlling the pressure in the compressed air system pressure switch - regulation in the system involves controlling the maximum and minimum pressures that will exclude dangerous situations for the installation and all terminal devices connected to it. It is worth remembering that the maximum and minimum pressure values are previously set by the operator for each system. How to set the working pressure in the compressor? They should include optimal performance values at which the compressed air system will function fully safely. These values are determined by the manufacturer of a specific compressed air installation.
Pressure switches are successfully used in compressed air installations. However, their use is much broader - the operation they offer is also perfect in installations containing hydrophore sets, in air conditioning and ventilation systems, as well as in household appliances and air filtering systems.
How to connect a pressure switch to a compressor?
Maintaining appropriate compressed air pressure is crucial for the efficiency and proper operation of devices using the working medium. The appropriate pressure level also allows you to minimize losses resulting from incorrect operation of end devices. Therefore, it is crucial to properly connect the pressure switch, which will allow for pressure regulation in the compressor and on all receivers.
How to connect a pressure switch to a compressor? The pressure switch is mounted to the receiver using a threaded central hole. It is worth remembering that this hole should be properly sealed. Then connect the unloading valve to the smallest relay output. The next step is to connect the remaining outputs to a pressure gauge or safety valve. Now it's time to connect the pressure switch to the power supply and the engine using wires that connect to the pressure switch contacts. The final step is to configure the switch according to the compressed air system guidelines.
