Pressure switches are used in many industrial applications. Their functions are becoming increasingly diverse. The use of pressure switches depends on their purpose and the physical environment in which they are used. The two main kinds of pressure switch are the solid state pressure switch and the electromechanical pressure switch.

The reasons we use pressure switches

Pressure switches monitor pressure levels in an industrial system. If there is a change in pressure beyond normal levels, the switch will either send out an electrical signal or change the industrial process function. Pressure switches were created specifically to fulfill this very purpose.

Electromechanical pressure switches

Electromechanical pressure switches are snap action type switches. These pressure switches open or close according to changes in system pressure. If pressure is maintained at equilibrium then the switch will remain in the constant state.

Solid state pressure switches

The new types of pressure switches are called solid state pressure switches. This type of switch sometimes has an inbuilt display unit for the purpose of indication. And these switches have a very long lifespan as they contain no moving mechanical parts. They can in fact work efficiently for over one hundred million successive operations. They offer the highest accuracy rates and are not affected by external shocks or disturbance caused by vibrations. They have now found a wide range of uses in industrial applications.

A pressure switch is basically a kind of switch mechanism which is specially designed to start an electrical connection when a specific amount of pressure is placed on the switch. Different types of pressure switches are available in the market. All these types are classified under two particular categories known as hydraulic and pneumatic. Pressure switches are generally used in machinery, different appliances, pools and in other applications.

For charging different types of batteries, you can use pneumatic pressure switches. The role of pressure switch is to assist in regulating the rate of charge. Thus, they prevent the battery from receiving huge amount of current.

On the other hand, hydraulic pressure switches are also used in different ways. They are widely found on trucks and cars. Hydraulic pressure switches activate the warning light in case the oil pressure in the automobile drops below the stipulated level. Hydraulic pressure switches are also built into the brake system. They activate the brake lights if the pressure increases because of the driver depressing the brake. Pressure switches enable a person to activate and shut down air conditioning and air filtration systems according to the presence of different levels of pressure.

Pressure switches are also found in pool systems. They play an important role in regulating the temperature of the water. This enables pool users to enjoy pleasant temperatures in the summer months and a heated pool during the winter season. Pressure switches are available in a range of designs and sizes and these switches are quite safe to use.

A pressure switch is actually a type of mechanical switch that makes an electric contact when a particular amount of pressure is reached with the input. They are generally used for offering automatic on/off switching from a hydraulic or pneumatic source. The pressure switch can be specially designed to react to either a fall in pressure or a rise in the pressure.

When selecting a pressure switch for protecting equipment, products or operators, you should essentially consider deadband, set point and reliability. Pressure switches are generally used in plants across the globe for an extensive range of control, shutdown and alarm applications. They are economical means for protecting equipment and operators by sensing when the pressure drops down or rises up beyond safe levels.

Once the pressure rise or drop is determined, an electrical signal is then sent to control the equipment or to activate an alarm. Set point refers to a pressure level where the control function or alarm is set to occur. Generally, most pressure switches enable physical set-point changes in the field. However, some manufacturers also provide models with two different set points for both minimum and maximum pressure alarm applications.

On the other hand, a deadband is actually a difference between reset points and set points resulting from the inefficiencies in mechanical parts of the switches. While some pressure switches include deadband adjustments, others have non-adjustable, fixed deadbands. So, when it comes to selecting pressure switches you need to choose the one that can best suit your requirements.

A pressure switch is actually a kind of control mechanism that is specially designed to start an electrical connection when a particular amount of pressure is placed on it (or relieved from it). Many different types of pressure switches are now available, two of which can be classified as hydraulic and pneumatic pressure switches. These types of switches are used in places like swimming pools, factory machinery and many other applications.

Hydraulic pressure switches:

Hydraulic pressure switches are used in many different ways. These types of pressure switches can be commonly found in trucks and cars. The hydraulic pressure switches activate the warning light if the vehicle’s oil pressure drops to a level that can possibly create problems for the engine.

The hydraulic pressure switches are also built into the braking system of the vehicle. When the driver depresses the brake pedal, the pressure rises and increases the pressure found in the hydraulic brake pipe. Other hydraulic pressure switches are used throughout different components, including air conditioning and air filtration systems.

Pneumatic pressure switches:

These types of pressure switches are extremely helpful in the appropriate charging of different batteries, particularly the designs that utilise a mixture of nickel with some other metal. Basically, the pneumatic pressure switches help to adjust the rate of charge, thus preventing the battery from receiving excesses of current.

The pneumatic pressure switches can also be used for adjusting the function of a gas compressor. In this type of application, pressure serves as the means for determining when to shut off the electric flow into the compressor. This greatly helps to prevent an overload situation.