Vacuum gauge -1-0 bar (diam.63mm) Gianneschi

This instrument is designed to measure pressures below atmospheric pressure, i.e., the vacuum level (depression) in a system. The use of glycerin is crucial in environments subject to vibration.

Probable Technical Specifications:

Measuring Range: −1 to 0 bar.

0 bar represents atmospheric pressure (ambient pressure, no vacuum). −1 bar (or the equivalent of 0 bar in absolute pressure) represents perfect vacuum (the maximum vacuum measurable with this type of instrument).

Function: Vacuum gauge (measures negative pressure, or vacuum).

Dial Diameter: 63 mm (Ø 63 mm). This is a common size offering a good balance between compactness and readability.

Connection Type: The connection is usually axial (at the rear) or radial (at the bottom), but the most common configuration for integration is often radial connection for installations on pipes or pump bodies. Since the axial type is not specified in the short description, the model can be either axial (at the rear) or radial (at the bottom).

Damping (Glycerin): Glycerin-filled. This liquid fills the dial and mechanism.

Purpose: Its function is to dampen shocks and vibrations (due to pumps, motors, or water movement) that could make the pointer unstable and distort the reading. It also protects internal parts from premature wear.

Materials: The housing is often made of stainless steel (Inox) for better corrosion resistance, which is essential in marine or industrial applications.

Typical Applications:

This vacuum gauge would be used to monitor the suction of self-priming pumps or Gianneschi hydrophore units, ensuring that the system is not experiencing excessive vacuum, which could indicate a blockage or lack of water at the suction line.