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Mechanical pressure gauges are essential tools used in various industries to measure the pressure of liquids and gases. These gauges come in different types, each with its unique features and applications. In this post, we will discuss the three types of mechanical pressure gauges and their uses.
1. Bourdon Tube Pressure Gauge
The Bourdon tube pressure gauge is the most common type of mechanical pressure gauge. It consists of a curved tube that is flattened on one end and connected to the pressure source. As the pressure increases, the tube straightens, and the movement is transmitted to the gauge pointer through a linkage mechanism. Bourdon tube gauges are used in a wide range of applications, including hydraulic systems, refrigeration, and air conditioning.
2. Diaphragm Pressure Gauge
Diaphragm pressure gauges use a flexible diaphragm that deflects under pressure. The deflection is transmitted to the gauge pointer through a linkage mechanism. Diaphragm gauges are used in applications where the pressure is low, and the media is corrosive or viscous. They are commonly used in the chemical and petrochemical industries.
3. Bellows Pressure Gauge
Bellows pressure gauges use a metal bellows that expands or contracts under pressure. The movement is transmitted to the gauge pointer through a linkage mechanism. Bellows gauges are used in applications where the pressure is low, and the media is corrosive or toxic. They are commonly used in the pharmaceutical and food industries.
In conclusion, mechanical pressure gauges are essential tools used in various industries to measure the pressure of liquids and gases. The three types of mechanical pressure gauges are Bourdon tube, diaphragm, and bellows gauges. Each type has its unique features and applications. Understanding the differences between these gauges can help you choose the right gauge for your application.
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