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How do I choose a pressure gauge range?
How to choose a process pressure gauge?
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May 26, 2022 · Tip 1: Choosing the correct measurement range. The scale range must be chosen so that the measured process pressure is between 1/3 and 2/3 of the scale range. In this area, the gauge reaches its highest accuracy. As a rule of thumb, you can say that the measurement range should be two times larger than the operating pressure.
Sep 13, 2021 · The first step in selecting a pressure gauge range is to understand the operating pressures of your process. Ashcroft follows ASME B40.100 standards, which recommend the following: Operating pressure should be 25% to 75% of scale, and the gauge range should be twice the operating pressure.
1. Range Selection. When measuring stable pressure, the range of the pressure gauge should be close to or greater than 1.5 times the normal pressure measurement value; When measuring pulsating pressure, the range of the pressure gauge should be close to or greater than 2 times the normal pressure measurement value;
- Pressure Gauge Accuracy. The first metric you should look for in a mechanical pressure gauge is its accuracy. For a mechanical pressure gauge, accuracy is defined as a percentage of the full-scale range.
- Dial Size. Dial size should be your second consideration when choosing a pressure gauge. Pressure gauge dial sizes range from less than 1 inch to 16 inches in diameter.
- Case Material. The material of the case surrounding the dial is extremely important to take into account. It should be a material that can withstand the environmental conditions of its surroundings and not corrode, melt, or become clouded with condensation.
- Process Media Compatibility With Wetted Parts. In the fourth step, you should ensure that the wetted parts of the pressure gauge, the Bourdon tube, and the socket are compatible with the process media.
- Size. Mechanical pressure gauges come in a variety of nominal sizes, and the one you choose depends on your requirements for readability, space, and precision.
- Temperature. Both the ambient temperature and media temperature will determine the material of the wetted parts (brass, stainless steel, nickel alloy, etc.)
- Application. Basically, in what industry will the gauge be used? Here are some examples: Gauges for drinking water applications need to be lead-free, while process industries like refineries and pharmaceuticals require industrial process gauges.
- Media. The media that the pressure gauge, especially its wetted parts, comes in contact with will determine the gauge material. In other words, what’s in the pipeline?
May 17, 2021 · How to choose a pressure gauge that is right for your application? We explore various criteria to consider, such as digital vs analog reading, gauge type and material and more. Skip to content
Jun 14, 2023 · You will be able to select the Pressure Gauge based on these factors. Determine the appropriate pressure range for your application. Consider the many pressure gauges on the market, including Bourdon Tube Gauges, Diaphragm Gauges, Differential Pressure Gauges, and Digital Gauges.
