Why Select a Liquid Filled Pressure Gauge?

As we all know, vibration, pulsation and pressure peaks are the most common reasons for pressure gauge performance degradation and failure. In today’s extremely demanding world, instruments in the oil, gas, and chemical industries and other applications in processing plants must work day after day under these harsh conditions. Using liquid-filled rather than dry pressure gauges can minimize these problems. In the long run, liquid filled pressure gauges have fewer problems and less downtime and are a more cost-effective solution.

 

Liquid filled pressure gauges are used in applications that involve high dynamic shock and vibration loading. The filling liquid dampens the vibrations that occur and thus takes the load off the mechanical components of the pressure gauge.

 

The Principle Structure

It is composed of capsule diaphragm, damper, elastic element and indicator mechanism.

The working principle of the shockproof watch composed of the sealing pad, the diaphragm group, the hook spring, the transmission indicating mechanism, the housing, etc. The pulsating pressure of the measured medium acts on the diaphragm group through the seal. The diaphragm group uses the capillary channel current limiting principle to suppress the pressure pulsation and become a more stable pressure. The pressure is converted into a concentrated force by the mechanism to act on the hook spring, and the hook spring is deformed. After being amplified by the transmission mechanism, the dial is rotated, and then the average value of the measured pulsating pressure is pointed out.

 

Principle-Related Features

Good Shock Resistance

how liquid filled pressure gauge works

It is especially suitable for the measurement of fluid pressure with severe pulsation or instantaneous impact of the medium. The transmission indicator mechanism is in the viscous damping liquid, which greatly weakens the influence of the mechanical vibration of the environment where the instrument is located on its work.

 

Anti-blocking features

It adopts umbrella sealing structure, and can work in harsh environments and water such as high humidity and dust. It can be used for the measurement of high viscosity, easy to crystallize and solidify media such as cement and mud.

 

This article describes in detail the working principle of the liquid-filled pressure gauge, and we hope you have a guiding direction for using the hydraulic gauge. Our company also has a high-quality liquid-filled pressure gauge, if you are interested, please leave a message.

 

Why Select a Liquid Filled Pressure Gauge?

Liquid filled gauges are used for measuring pressure points of high stress like fast and frequent loads, pressure peaks and mechanical vibrations. Liquid filled gauges are typically filled with either glycerine only or a combination of glycerine and water. Specific glycerine gauges are needed depending on the different conditions you require the gauge for.

 

Applications

Standard liquid filled pressure gauges are filled with 100% (99.7% min.) glycerine which starts to become sticky at +17 degrees C, as the temperature decreases the more slimy the glycerine becomes causing the pointer to move slowly to the correct position. At -5 degrees C the gauge would stop operating completely. Locations with an even temperature that doesn't fluctuate often, would be the perfect home for a standard gauge.

 

Liquid filled pressure gauges that have 2 parts glycerine with 1 part water can be used in temperatures as low as -46 degrees C. These types of gauges are ideal for locations that have extremely cold circumstances. For example, regions that have harsher winter temperatures may consider this type of gauge.

 

Most liquid filled pressure gauges are completely airtight which allows them to perform in corrosive environments and are resistant to moisture intrusion and icing.

 

Ma anshan Exact Instrument Co., Ltd. is an international pressure instrument manufacturer. Diversified products, high-quality services and extensive sales channels place the company in a leading position in the field of instrument manufacturing and export. Looking for such effective liquid filled pressure gauge? Get in touch with us. Our quality products and the price rate will never depress you.