Pressure gauges

Pressure gauges are instruments designed to measure the pressure of fluids in closed systems, providing accurate and reliable readings essential for control and monitoring in various industrial and scientific applications.

General Features:

• Types of Measurement:
  • Gauge Pressure: It measures the relative pressure with respect to atmospheric pressure.
  • Absolute Pressure: Measures the pressure relative to absolute vacuum.
  • Differential Pressure: Determines the pressure difference between two points.

• Operating Principles:
  • Bourdon tube: It uses a curved tube that deforms under pressure, making it ideal for measuring relatively high pressures.
  • Liquid Column Manometers: They measure pressure through the height of a liquid in a vertical tube, such as mercury or water manometers.
  • Digital Pressure Gauges: They provide accurate readings in digital format, often with additional features such as data logging.

• Measuring Ranges: Available for a wide range of pressures, from deep vacuums to extremely high pressures, adapting to various needs.
• Accuracy and Precision: They offer different degrees of accuracy depending on the design and application, and selecting the right one is crucial to ensure reliable measurements.
• Construction Materials: Manufactured from corrosion-resistant materials suitable for the type of fluid and operating conditions, such as stainless steel for industrial applications.
• Design and Assembly: Available in various configurations for panel mounting, on pipes or on specific equipment, facilitating their integration into existing systems.

Common Types of Pressure Gauges:

• Bourdon tube pressure gauges: The most widely used type, suitable for measuring relatively high pressures.
• Liquid Column Manometers: They use the height of a liquid column to measure pressure, like mercury or water manometers.
• Digital Pressure Gauges: They offer accurate readings in digital format, with additional features such as data logging.
• Diaphragm Pressure Gauges: They use a flexible membrane that deforms under pressure, suitable for measuring low pressures.
• Bellows Pressure Gauges: They use a bellows that expands or contracts with pressure, used in applications that require high sensitivity.

Considerations for Selecting a Pressure Gauge:

• Pressure Range: Select a pressure gauge with a range suitable for the pressure to be measured, considering a safety margin.
• Material Compatibility: Ensure that the pressure gauge materials are compatible with the fluid and operating conditions to avoid corrosion or damage.
• Accuracy Required: Determine the degree of accuracy required for the specific application.
• Environmental Conditions: Consider factors such as temperature, vibration and exposure to corrosive elements when selecting the pressure gauge.

In summary, pressure gauges are essential tools for measuring pressure in various systems, and their correct selection and use are essential to ensure safety and efficiency in multiple applications.