How accurate is the pneumatic pressure switch? Which applications are most suitable for?

Pneumatic pressure switch is a commonly used automatic control element for detecting and controlling pressure. The accuracy of a pneumatic pressure switch refers to the accuracy of its measurement or control of pressure, which is generally measured by its response time, measurement range, repetition accuracy, and other indicators. So, how accurate is the pneumatic pressure switch? Which applications are most suitable for? The following is a detailed introduction.

1、 Accuracy of pneumatic pressure switches

The accuracy of pneumatic pressure switches is affected by various factors, including:

Measurement range: Different pneumatic pressure switches have different measurement ranges. Generally, the larger the measurement range, the lower the accuracy.

Response time: The shorter the response time of the pneumatic pressure switch, the higher the accuracy.

Repetitive accuracy: The higher the repetitive accuracy of the pneumatic pressure switch, the higher the accuracy.

Working environment: Pneumatic pressure switches are subject to different interference and influence in different working environments, which affects their accuracy.

Generally, the accuracy of pneumatic pressure switches can reach about 1% to 3%, depending on factors such as their structure, working principle, and manufacturing process. For some high-precision applications, such as instrumentation, precision machinery, and other fields, it is necessary to select pneumatic pressure switches with higher accuracy, usually requiring accuracy below 0.5%.

2、 Application of pneumatic pressure switch

Pneumatic pressure switches are widely used in various automation control systems, such as industrial automation, manufacturing, aerospace, automotive industry, and other fields. Pneumatic pressure switches are commonly used to detect the pressure, flow, and level of fluids, as well as to control the start, stop, rotational speed, and direction of machines and equipment. Pneumatic pressure switches with different accuracy are suitable for different applications.

Low precision pneumatic pressure switch: Suitable for applications with less stringent requirements, such as pressure detection and control in ordinary industrial automation control systems.

Medium precision pneumatic pressure switch: suitable for some demanding applications, such as pressure detection and control in fluid control systems in the fields of food, medicine, etc.

High precision pneumatic pressure switch: suitable for some highly demanding applications, such as pressure detection and control in hydraulic control systems in aerospace and other fields. The accuracy of high-precision pneumatic pressure switches can reach below 0.5%, with very high accuracy and repetitive accuracy, which can meet applications that require very high accuracy for pressure measurement and control.

In addition to accuracy, pneumatic pressure switches have other advantages, such as:

Easy to use: Pneumatic pressure switches have a simple structure and are convenient to use, suitable for various applications.

High reliability: Due to its simple structure and absence of complex components such as circuits, pneumatic pressure switches have very high reliability and are suitable for applications where the working environment is relatively harsh.

Strong durability: Due to its simple structure, pneumatic pressure switches have very high durability and can maintain stable performance during long-term operation.

Pneumatic pressure switch is a very important automatic control component, which has a wide application prospect. When selecting pneumatic pressure switches, it is necessary to select appropriate structural forms and parameters according to different application situations and requirements to achieve the best measurement and control effects.