White Paper: Test & Measurement
Calculating Gas Flow Through Orifices — A Technical Guide
SPONSORED BY: ![]()
Medical applications dealing with gases are many. Precise flow is required for correct mixing of gases and for pneumatic equipment applications, as examples. There are several technical factors which must be considered when calculating gas flow through orifices, including pressure, temperature, type of gas, and others. Our Technical Guide details a number of formulas which can be used to extend orifice flow data beyond the included flow charts. Examples are shown for each, making this a valuable resource for medical OEMs and system designers.
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Overview
The white paper discusses the critical importance of precision in controlling gas flow for industrial applications. It highlights that achieving accurate and repeatable results is essential for successful operations, necessitating a thorough understanding of the science behind gas flow. Key factors influencing gas flow include pressure, temperature, and the type of gas being used.
To aid engineers in selecting the appropriate orifice size for their applications, precision orifice manufacturers often provide flow charts that cover a common range of conditions. However, the paper notes that not all applications fit within the parameters of these charts, which can limit their usefulness.
To address this limitation, the white paper introduces various technical formulas that can extend orifice flow data beyond the standard charts. These formulas are particularly useful for applications that involve high or low pressures or specific temperature conditions. The document includes examples to illustrate how these formulas can be applied, making it a valuable resource for engineers and system designers.
Additionally, the paper emphasizes the availability of support from the engineers at O’Keefe Controls Co. for those needing further assistance with specific applications. This support can help ensure that users can effectively navigate the complexities of gas flow control and make informed decisions regarding orifice selection.
In summary, the white paper serves as a comprehensive guide for understanding the factors affecting gas flow and provides practical tools and resources for engineers to achieve precise control in their applications. It underscores the importance of precision in gas flow management and offers solutions for extending the applicability of flow data, ultimately aiming to enhance operational efficiency in industrial settings.