Atmospheric pressure values in various pressure units.
Introducing the basic knowledge of small DC diaphragm pumps (micro pumps)!
Regarding units of pressure, the new measurement system uses Pa (Pascal), N/m² (Newton per square meter), and bar as SI units, while Torr is recognized as a non-SI unit for pressure within the body, and mmHg (millimeters of mercury) is recognized for blood pressure. There are two methods for expressing vacuum pressure. The vacuum industry uses absolute pressure, while other industries often use gauge pressure, so when looking at documents or catalogs, it is necessary to check which method is used to express pressure. [Notation of Vacuum Pressure] 1. Absolute pressure with absolute vacuum as 0 (zero) - Often abbreviated with "a" or "abs" after the unit (often omitted) 2. Gauge pressure with atmospheric pressure as 0 (zero) - Often abbreviated with "G" or "Gauge" after the unit (often omitted) *For more details, please refer to the PDF document or feel free to contact us.
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