Understand how the orifice meter measures gas flow with precision and practical guidance.
This book explains the history, theory, and construction of the Foxboro orifice meter, plus how coefficients, differential and static pressures, and flow formulas come together in real-world gas measurement. It provides practical methods for computing charts, applying correction factors, and using standard testing procedures.
The pages cover key concepts from the origins of the meter to detailed installation, maintenance, and calibration practices. Readers will find discussions of pressure taps, vena contracta considerations, and the impact of pipe size on accuracy, all grounded in historical calibration work and field experience.
- How to compute gas flow using four-significant-figure coefficients and practical calculation methods.
- Ways to adjust for flowing temperature, barometric pressure, and other base factors.
- Different charting methods and tools used to interpret differential and static pressure data.
- Guidance on installation, testing, and maintaining orifice meters in real facilities.
Ideal for engineers, technicians, and gas-industry professionals seeking a practical reference on orifice meters and their use in measurement and regulation.The book is suitable for readers looking for a thorough, historically grounded, and hands-on treatment of gas measurement with the orifice meter.