Pneumatic Pressure Switch

Pneumatic Pressure Switch

A Pneumatic Pressure Switch is a device that activates or deactivates an electrical signal in a system based on the level of air pressure detected by the module.

Now let’s look at the various brands of pneumatic switches :

A pressure switch opens and ends the electrical connection point when the pressure of compressed air reaches the designated value. It consists of the pressure receiving portion, the electrical contact point that produces electrical signals, and the pressure setting part.

A pressure switch monitors the air pressure, and when it goes below or above the preset worth, the monitor operates a micro switch to open and close the interaction point to generate an electrical signal. Pressure switches are available in four categories: diaphragm, bellows, bourdon-tube, and piston.

A pneumatics pressure switch is used for the resulting purposes:

• It monitors the pressure of the pneumatic power basis and generates alarm signals when the air pressure drops below the preset value,
the pressure stops for safety purposes.

• It detects the pneumatic pressure of the driver device to generate a signal.

• It detects the operation of pneumatic pressure. For example, it can be used to amount the number of operations of a direction-control valve.

The pressure switch is mostly applied to control machinery that usages both pneumatic circuits and electrical controls as shown in Figure 1. Pressure switches have both differential and pressure characteristics. For instance, when you set a pressure switch’s air pressure to a certain price and the pressure exceeds that cost, the air pressure will reduce back to that value. When differentia is too small, the accuracy of control increases, but the switch is turned on and off too often, the stability and controllability of the system is jeopardized. It is main to find the best value of differentia based on the conditions of control.

Now, pressure switches in the marketplace are classified as 3 percent or 0.5 percent of maximum control pressure. When selecting a pressure switch, choice the right one by considering the range of operating pressure, the range of differential control, and the frequency of operation.

Below are some of the common uses of pressure switches.
  • Water Pumping Systems: This may be the best common use of pressure switches
  • Compressed Air Systems
  • Pneumatic and Hydraulic Systems
  • Air Conditioning and Refrigeratios
  • Furnace and Boiler Systems
  • Filtering and Screening Equipment

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