Question 1

Adjustable Deadband Pressure Switch

Accepted Answer

In the use of pressure switches, differential pressure switches, flow switches or temperature switches, there will be a 'Deadband' term.

The so-called Deadband is the difference between the values corresponding to the switch-off and switch-on values.

Taking the pressure switch as an example, the Deadband is 0.1MPa. The switch setting value is 1MPa, and the switch is closed when it rises. When the pressure is 0, the switch is off. When the pressure rises to 1MPa. The switch will close.

After closing, when will the switch open again?

Normally, when the switch is closed, the pressure will decrease. When the pressure drops to 1MPa-switch dead zone=1-0.1MPa=0.9MPa. The switch will open again.

If the switch action point is set at 0.7MPa, it will be 0.6MPa when the switch returns to action.

The so-called fixed Deadband means no matter how much pressure you set the action point of the pressure switch to. The value it returns will be smaller (or higher) than the set pressure value by a dead zone value.

The so-called adjustable Deadband is that you can set the size of the value when the switch returns. For example, the adjustable dead zone is 0.05-0.1MPa, and the set value is 1MPa. Then I can make the switch return to action at any value between 0.9MPa-0.95MPa.

Question 2

differential pressure switch

Accepted Answer

Differential pressure switches are also called differential pressure controllers. It is to use the pressure difference between the two pressure guiding pipes to issue an electrical signal (switch contact signal). When the pressure difference between the two ends of the series pressure guiding liquid pipe increases (or decreases) and exceeds the set value of the differential pressure controller, the micro switch inside the differential pressure switch sends a signal to control the reversing valve reversing or monitor the lubrication system. The valve then opens up (or closes down). Therefore, the pressure difference between the two ends of the system liquid pipe is reduced. achieve the normal operation of the system.

Question 3

atex pressure switch

Accepted Answer

Explosion Proof Pressure Switches are designed for pressure control within harsh applications. The wiring contacts are sealed in a solid space through a solid sealed shell to achieve explosion-proof effect.

The explosion-proof construction provides superior protection, while its compact design allows for easy integration into custom equipment or systems. This model is ideal for pressure alarm, shutdown or control within hazardous areas when limited size and process compatibility are needed.

Question 4

sealed pressure switch

Accepted Answer

Encapsulated and sealed fast micro switch, which can be divided into single pole double throw or double pole double throw output. In general dangerous occasions and corrosive environments, it is most practical to choose this series of switches. With an internal scale adjustment mechanism, it is convenient for customers to calibrate the set point on site. It has a compact structure and can be widely used in water supply and sewage treatment, papermaking, food and petrochemical, pharmaceutical and other industries.

Extended reading: Miniature Pressure Switch

Question 5

What is the difference between a low pressure switch and a pressure switch?

Accepted Answer

Low-voltage switches are roughly classified into three categories: automotive low-voltage protection switches, pressure-controlled low-voltage switches, and low-voltage switches for power equipment. It is suitable for the automobile industry, water purifier industry, electric power industry and other fields.

In different fields, low-voltage switches have different meanings. Generally, there are low-voltage protection switches for automobiles, low-voltage switches for pressure control, and low-voltage switches for power equipment.

The low-voltage switch refers to when the voltage provided by the car to the on-board power supply is lower than how much the on-board power supply will automatically turn off. It is a commonly used electrical component. This function of the on-board power supply is a protection function, which protects the power supply equipment of the car from damage, and gives priority to ensuring the normal power consumption of the car itself, such as ensuring that the car can be ignited normally.

The pressure control low pressure switch is an electrical component that controls the entire circuit of the system to disconnect when the pressure of the water supply in the entire system is too low or there is no water to protect the service life of the pump and prevent the system pump from idling.

The pressure switch is when the pressure in the system is higher or lower than the rated safety pressure. The disc in the sensor moves instantaneously. Push the switch connector on or off by connecting the guide rod.

When the pressure drops or rises to the rated recovery value, the disc resets instantly and the switch resets automatically. Or simply put, when the measured pressure exceeds the rated value. The free end of the elastic element is displaced. Push the switching element directly or after a comparison. Change the on-off state of the switch element to achieve the purpose of controlling the measured pressure.

Question 6

How does a water tank pressure switch work?

Accepted Answer

The working principle of the water pump pressure controller: the working medium (oil, gas, water) directly acts on the metal diaphragm. The pressure of the working medium is reflected by the deformation of the metal diaphragm, and a detection signal or a control signal is output at the same time.

Question 7

What is a water pressure switch?

Accepted Answer

The water pressure switch is automatically closed when the water pressure is too high or too low, which is the function of the protection device.

Month: December 2020

Waterproof Pressure Switch PC-500

Adjustable Pressure Switch PC-400

Stainless Steel Pressure Switch PC-300

Manual Reset Pressure Switch PC-200

Miniature Pressure Switch PC-100

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