On which side is the test tee of a vapor meter installed?

The test tee of a vapor meter is installed on the outlet side of the meter. This placement allows for proper measurement of the vapor flow exiting the system. By positioning the test tee in this manner, technicians can capture accurate readings of the vapor that has already passed through the metering device. This is particularly important for applications where precise data on vapor flow rates and characteristics are critical for process monitoring and control.

The outlet side is chosen because it ensures that any influences from upstream flow, such as pressure changes or turbulence, are mitigated, thereby leading to more reliable measurements. This helps in ensuring that apparent discrepancies in data due to fluctuating upstream conditions are avoided. Therefore, having the test tee on the outlet side is essential for obtaining accurate and consistent readings from the vapor meter.