Arbuda 4 Inch Stainless Steel Analog Vacuum Gauge Bottom Connection Without Glycerin (Range -760 mmHG to 0)

Description

A pressure gauge -760 mmHG to 0 is a device used to measure fluid or gas pressure in a system. It typically consists of a cylindrical case, a dial with a pointer indicating the pressure, and a bourdon tube or other sensing element that reacts to changes in pressure.

The bourdon tube is a thin, curved metal tube connected to the measured system. When the pressure inside the tube changes, the tube straightens slightly, which moves a pointer on the dial. Other sensing elements in pressure gauges include diaphragms, bellows, and capsule elements.

Pressure gauges are used in various applications, including industrial processes, HVAC systems, and medical equipment. They can be found in various styles and sizes, from small gauges used in portable equipment to large, highly accurate meters used in laboratory or industrial settings.

Accurate and reliable pressure measurement is essential for ensuring the safety and efficiency of many different types of systems. It’s essential to select the correct type of pressure gauge for the application. Factors to consider include the type of fluid or gas being measured, the range of pressures expected, and the system’s operating conditions.

1. Dial: The dial is the face of the pressure gauge where the pressure readings are displayed. It usually has a circular shape and a scale that shows the pressure range in different units of measurement.
2. Pointer: The pointer is attached to the sensing element and moves in response to changes in pressure. It indicates the pressure reading on the dial.
3. Sensing element: The sensing element is part of the pressure gauge that reacts to changes in pressure. Depending on the application, it can be a bourdon tube, diaphragm, bellows, or capsule element.
4. Connection: The connection is part of the pressure gauge that attaches to the measured system. It can be a threaded, flanged, or welded connection.
5. Case: The case is the outer shell of the pressure gauge that protects the internal components from damage. Depending on the application, it can be made of plastic, stainless steel, or other materials.
6. Accuracy: The accuracy of a pressure gauge refers to how closely it measures the actual pressure of the system. It is usually expressed as a percentage of the full scale.
7. Pressure range: The pressure range is the range of pressures that the pressure gauge can measure. It is usually expressed in pounds per square inch (psi), bar, or other pressure units.
8. Overpressure protection: Overpressure protection is a feature that prevents the pressure gauge from being damaged by pressures that exceed its rated range. It can be achieved through a pressure relief valve, snubber, or another device.
9. Mounting: The mounting of a pressure gauge refers to how it is attached to the measured system. Depending on the application, it can be a bottom, back, or panel mount.