Pressure switches are used to initiate an electrical connection when a certain amount of pressure is applied. There are two types: pneumatic and hydraulic, used in various applications including battery charging, gas compressor regulation, engine oil pressure warning, and swimming pool temperature control.
A pressure switch is a mechanism designed to initiate an electrical connection when a certain amount of pressure is applied to it. There are many different types of such switches, although all can be classified into two specific categories: pneumatic and hydraulic. Switches of this type are used in swimming pools, various types of household appliances, machinery in factories and a number of other applications.
Pneumatic pressure switches are useful for the correct recharging of different types of batteries; specifically, designs that use a combination of nickel and other metals. Essentially, the switch helps regulate the rate of charge, preventing the battery from receiving too much current. This is an example of a switch that operates on increasing pressure, as it will activate to begin the charging process, but will also stop when the pressure reaches a certain level.
Another application of a pneumatic switch is to regulate the function of a gas compressor. In this application, pressure serves as a means of determining when to shut off the flow of electricity into the compressor, thus preventing an overload situation. From this point of view it can be considered a safety measure.
Hydraulic pressure switches are used in a variety of ways, and those found on cars and trucks are a classic example. This type of switch turns on a warning light if the oil pressure drops to a level that could cause engine problems. Those integrated into the braking system activate the brake lights when the pressure builds due to the driver pressing the brake pedal and the pressure present in the hydraulic brake hoses increases. Other switches in various components, including filtration and air conditioning systems, also turn on and off based on the presence of various pressure levels.
These switches are also found in swimming pool systems that help regulate the water temperature. They allow you to take advantage of heated swimming pools in the winter months while enjoying a pleasant temperature even in the height of the summer season. While switches come in a variety of sizes and designs, they all serve the useful purpose of allowing control of the pressure level within a given device, making it safer to use the device without fear of any kind of malfunction.
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