Pressure Switches - An Overview

We rarely think of how devices and appliances we use everyday work. Take, for instance, pressure switches - a vast majority of us have no idea what these are. Yet you would be surprised at how integral pressure switches are in manufacturing units and even household equipment. Pressure switches are devices that are activated when fluid or air in an appliance reaches a certain threshold or upper limit. When such an incident occurs, pressure switches are triggered to control the pressure and reduce damage to the equipment. For instance, the manufacturing of many items requires the air pressure in the container to be at a certain standard level. Any fluctuation in the air pressure can lead to damage to the product. It is here that air pressure switches come in and turn off the air compressors when the desired pressure level is achieved. Similarly, when air or fluid pressure is reduced, then the air compressors are automatically turned on with the aid of pressure switches.

What Are Pressure Switches Made Of?

Pressure switches are made of 5 essential components. These are:

1. Diaphragm - This is the tool that is responsible for detecting pressure.
2. Spring - The spring in a pressure switch is responsible for adjusting the set points or cut-out points.
3. Lever - This is the component that activates or deactivates the switch.
4. Electrical contacts - These are points where the current passes through from an external power source.
5. Terminals - This is the dashboard where the external power source is connected so it can power the contacts.

Now that you understand the components that make up a power switch, we will further understand the key aspects to consider when buying a power switch.

Aspects To Consider When Investing In A Power Switch.

Several aspects determine the quality of a power switch. These include understanding the material used, set point requirements, and application pressures that the pressure switch will handle. Setpoint is specifically a very important attribute to consider. The power switch will need to consistently regulate the pressure accordingly. A durable and high-quality power switch will achieve this consistently as opposed to a low-quality power switch. Another factor to consider is whether you want to invest in an electronic or a basic switch. The major benefit of an electronic switch is it offers high accuracy levels, whereas basic switches cannot offer the same level of accuracy.

It’s advisable to understand the pressure specifications of the application before investing in a pressure switch. Since it is the application’s designated threshold that will determine the wear and tear experienced by the pressure switch. While most pressure switches are durable and perform well over long periods, they often need recalibration to continue to perform efficiently.

Also Read: Ultrasonic Sensors and Their Uses

Determining The Quality of Pressure Switches.

Before purchasing a power switch, make sure you have clarity regarding the following:

1. Application Pressure - Make a note of the standard pressure and maximum pressure of your application. It is this pressure that will be managed by the power switch. It’s also important to make sure the right pressure switch is used; else it can damage your appliance. So it’s best to choose a switch that can manage not just standard pressures but also sudden spikes in pressure. You can invest in a range of switches for this purpose. Such switches are usually classified as low-pressure switches.
2. Setpoints - You can choose a mechanical, electronic, or digital pressure switch. Irrespective of which you choose, make sure the set points of the application can be achieved by the switch. These set points need to be controlled accurately. Hence, it’s important to consider the set point limits before investing in a pressure switch.
3. Application Compatibility - Your application and the pressure switch must be compatible. From the wetted material, diaphragms, and pistons to process fittings, all aspects must be compatible. If incompatibility occurs, then it can lead to safety concerns, corrosion, and other issues that will impede the performance of the application and pressure switches.

Invest in High Quality and Reliable Pressure Switches by Schneider Electric

What you must now be concerned about is investing in a high-quality pressure switch that offers optimum performance and durability. Schneider Electric has you covered.

The renowned brand develops a range of electronic appliances and accessories. One such device manufactured by this industry leader is pressure switches. Schneider Electric manufactures low-pressure switches, high-pressure switches, and digital pressure switches that meet all your needs. These pressure switches undergo multiple quality checks and tests to ensure they are well equipped to manage and control pressure. So when looking for quality pressure switches, look no further than Schneider Electric.