What is the significance of pressure gauge dial graduation?

The significance of pressure gauge dial graduation lies in ensuring accurate measurements. Graduation marks on a pressure gauge help users read the pressure accurately by providing reference points that indicate specific pressure levels. This precision is critical in applications involving compressed natural gas (CNG), where accurate pressure readings are essential for safety, efficiency, and regulatory compliance. Without clearly defined graduations, users might misinterpret the pressure levels, leading to potentially hazardous situations or operational inefficiencies.

Enhancing visual clarity, while beneficial, is a secondary factor that supports accurate measurements but does not solely define the purpose of graduation. Aesthetic standards or manufacturing costs do not pertain to the primary function of a pressure gauge's graduation, which fundamentally centers around its role in measurement accuracy.