Pressure loss depends upon diameter ratio β (d/D) and amounts to ca. 30 - 80%
Measuring uncertainty: 0,5% - 1,2% of the discharge coefficient
Fields of application
Flow measurement of liquid, gases and steam in pipes for nominal sizes up to 40”
Orifice plate with welded-on handle for direct installation between flanges or orifice flanges. Depending on the process conditions, the plate type may be manufactured as square edged concentric, quarter circle nozzle, segmental, plate with conical entrance and double cone. Pressure taps may be positioned in the flange blade or in the pipeline. Orifice flanges are manufactured according to ASME B16.36 or DIN 19214.
Primary element type
Sharp edge Orifice plate with thickness range: 3 mm to 10 mm
Liquid, Gases and Steam
Max. allowable pressure loss
Abhängig vom Durchmesserverhältnis β (d/D) und beträgt ca. 30 - 80%.
Nominal diameter range
2" to 40"
Other Approvals/ Certification
ISO 5167 (Orifice plate design), EN 10204 3.1 and 3.2