The standard specifies the geometry, installation requirements, and operating conditions for "primary devices" inserted into a full-running conduit:
Before you search for the PDF, check which revision you need. As of 2024/2025, the active version is typically (or later). The committee revises the standard every 5–8 years to reflect new research data. Ensure you are not using the superseded MFC-3M-2004 . asme mfc 3m pdf
ASME MFC-3M is a standard developed by the American Society of Mechanical Engineers (ASME). The full title, “Measurement of Fluid Flow in Pipes Using Orifice, Nozzle, and Venturi,” hints at its comprehensive nature. Ensure you are not using the superseded MFC-3M-2004
It applies strictly to (liquids, vapors, or gases) where the flow remains turbulent and subsonic throughout the measurement section. It is not intended for pulsating flows, critical (choked) flow conditions, or conduits smaller than 50 mm (2 in.). Core Technical Content It applies strictly to (liquids, vapors, or gases)
The document is dense with technical data, but its core contents typically include: