What is Bellows Pressure Gauge?

Bellows are longitudinal expansions and collapsible elements made up of many twists (convolutions) or folds. Thus, the bellows are composed of a number of circular components that resemble folds. Bellows are lengthy and formed of a ductile metal alloy that maintains its qualities even after extensive use. Brass, bronze, beryllium, copper alloys, steel, nickel alloys, etc. are materials that are frequently utilized.

Bellows Pressure gauges are a preferred option in many industrial and scientific settings because of their great accuracy and robustness. They are frequently employed in low- to medium-pressure system applications, such as process control, fluid power systems, and gas analysis.

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Applications of Bellows Pressure Gauge

The pressure gauge has the feature of being less expensive than other gauges. For low to moderate pressure levels, it also offers excellent pressure measurement. However, high-pressure applications might not be a good fit for it. The flexibility of these gauges to absolute or differential pressure is another feature. pressure gauges are ideal for use in the following applications thanks to these benefits:

• HVAC: Bellows pressure gauges determine the system’s air or refrigerant pressure.
• Power transmission system: Bellows pressure gauges are commonly positioned on the discharge side of a pump to measure the pressure of fluid (oil) in the system.
• Aerospace systems: Bellows pressure gauges can be used in a number of the system’s subsystems. Engine systems, fuel systems, and pneumatic and hydraulic systems are a few examples.
• Electrical interrupters: An electrical interrupter is a device that opens or closes an electrical circuit by separating electrical contacts using an insulated gas. The gas pressure is measured using a bellows pressure gauge.

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Bellows Pressure Gauge Pros & Cons

Pressure Gauge Pros:-

• The price is reasonable.
• Appropriate for both gauge and absolute pressure.
• It is able to measure both low and moderate pressure.

Pressure Gauge Cons

• It needs to account for the surrounding temperature.
• It is not appropriate for measuring high pressures.

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