Pressure Gauge
Pressure gauges are devices used to measure and display the pressure of gases or liquids within a system. Here are
the key technical specifications for pressure gauges:
Description
Bourdon Tube Gauges: Most common, suitable for a wide range of pressures.
Diaphragm Gauges: Used for measuring low pressures or in corrosive environments.
Digital Gauges: Provide electronic readings and may include data logging capabilities.
Manometers: Measure pressure using columns of liquid.
Diaphragm Gauges: Used for measuring low pressures or in corrosive environments.
Digital Gauges: Provide electronic readings and may include data logging capabilities.
Manometers: Measure pressure using columns of liquid.
Pressure Range: Typically, from vacuum (0 bar) to several thousand bars (e.g., 0 to 6000 psi).
Overpressure Protection: Many gauges include a maximum pressure rating (e.g., 1.5 times the maximum
pressure).
Overpressure Protection: Many gauges include a maximum pressure rating (e.g., 1.5 times the maximum
pressure).
Accuracy Class: Typically ranges from ±0.25% to ±2% of full scale (FS)
Calibration Standards: Commonly calibrated to standards such as ANSI, ASME, or ISO
Calibration Standards: Commonly calibrated to standards such as ANSI, ASME, or ISO
Diameter: Common sizes include 2.5 inches, 4 inches, and 6 inches (63 mm, 100 mm, 160 mm)
Scale: May be linear or logarithmic, depending on the application.
Scale: May be linear or logarithmic, depending on the application.
Process Connection: Common types include NPT (National Pipe Thread), BSP (British Standard Pipe), or
flanged connections.
Sizes: Typically range from 1/8 inch to 1 inch.
flanged connections.
Sizes: Typically range from 1/8 inch to 1 inch.
Case Material: Typically, stainless steel, brass, or plastic.
Bourdon Tube Material: Usually made of brass, stainless steel, or bronze.
Diaphragm Material: Often made from stainless steel, Hastelloy, or Monel for corrosive applications.
Bourdon Tube Material: Usually made of brass, stainless steel, or bronze.
Diaphragm Material: Often made from stainless steel, Hastelloy, or Monel for corrosive applications.
Operating Temperature: Typically, from -20°C to +60°C (-4°F to +140°F), but specific gauges can handle
wider ranges.
wider ranges.
Ingress Protection (IP): Ratings may be specified (e.g., IP65) for dust and water resistance.
Shock and Vibration Resistance: Some gauges are designed for use in high-vibration environments.
Shock and Vibration Resistance: Some gauges are designed for use in high-vibration environments.
Liquid-Filled Gauges: Filled with glycerin or silicone oil to dampen vibrations and protect against shock.
Pointer Style: Standard pointers or adjustable pointers for zeroing.
Digital Output: Many digital gauges include features like backlighting, alarms, and output for data logging.
Pointer Style: Standard pointers or adjustable pointers for zeroing.
Digital Output: Many digital gauges include features like backlighting, alarms, and output for data logging.
Industries: Commonly used in HVAC, oil and gas, chemical processing, water treatment, and
manufacturing.
manufacturing.
When selecting a pressure gauge, it’s essential to consider the specific requirements of your application,
including pressure range, accuracy, environment, and medium being measured.