When to use a liquid filled pressure gauge?

A liquid filled pressure gauge is an instrument designed to measure the pressure of liquid or gas. Its main feature is that the pipes and sensors in the measuring system need to be filled with liquid before the pressure measurement. The following is relevant information about liquid-filled pressure gauges:

 

When to use a liquid filled pressure gauge
Liquid-filled pressure gauges are mainly used in the following situations:

Measure pulsating pressure: In a hydraulic system, the operation of the hydraulic pump or the operation of the valve will cause the liquid pressure to pulsate. Using a liquid-filled pressure gauge can reduce the interference of bubbles on the pressure measurement and ensure the accuracy and stability of the measurement.

 

High precision requirements: Some industrial applications have very high requirements for the accuracy of pressure measurement, and it is necessary to minimize the impact of external factors on the measurement. The liquid-filled pressure gauge can eliminate the interference of gas on the pressure sensor and improve the measurement accuracy.

 

Vibration resistance: Liquids can effectively absorb vibrations during transmission and measurement. Therefore, when the measuring equipment needs to work in a vibrating environment, liquid-filled pressure gauges can provide more stable measurement results.

 

Corrosion resistance requirements: In some special environments, such as those containing corrosive liquids, liquid-filled pressure gauges are usually made of corrosion-resistant materials to ensure long-term stable working performance.

 

Working principle of liquid filled pressure gauge
Liquid-filled pressure gauges are filled with liquid (usually silicone oil or other suitable liquids) into the sensor and measuring pipeline to form a pressure transmission medium. The working principle of this method includes the following key steps:

 

Liquid filling: Expel the air in the measuring system and fill the entire measuring pipeline and the inside of the sensor with liquid. This can avoid the influence of bubbles on pressure measurement and ensure that the sensor can accurately respond to pressure changes.

 

Pressure transmission: Liquid as a transmission medium can more effectively transmit pressure to the sensor. Because liquid is more incompressible and can transmit pressure evenly, this can improve the accuracy and stability of measurement.

 

Coping with environmental challenges: Liquid-filled pressure gauges are usually better able to cope with environmental challenges such as high temperature, corrosion, vibration, etc., ensuring that reliable pressure measurement data can still be provided in complex working environments.

 

Application areas
Liquid-filled pressure gauges are widely used in industrial automation control, hydraulic system monitoring, laboratory scientific research and other fields. For example, they are used for engine pressure monitoring in automobile manufacturing, pipeline pressure monitoring in chemical production, gas pressure monitoring in medical equipment, etc.

 

Liquid-filled pressure gauges play an important role in specific industrial and scientific applications due to their special working principles and advantages, and can ensure accurate and stable pressure measurement results. Ma anshan Exact is a professional pressure gauge manufacturer engaged in the research, development, production, sale and service of pressure gauge.We are prepared to offer the most valuable service for you!