Description

Differential pressure measurement is a universal flow measurement for liquids, gases, and vapors. Differential pressure flowmeter always provides accurate results even with large bores, high temperature, and extreme pressure.

Primary differential pressure devices, like SITRANS F O orifice, are standardized mechanical flow sensors according to DIN EN ISO 5167 which are used for volume and mass flow measurement. The SITRANS F O orifice is suitable for non-corrosive and corrosive gases, vapors and liquids; permissible operating temperature -60 to +570 °C. The created differential pressure will be converted with the help of a differential pressure transmitter SITRANS P delta P into a proportional flow signal. For calculation of the SITRANS F O orifice to DIN EN ISO 5167 is a completed filled out questionnaire necessary.

Differntial pressure flow meter application examples: Power stations, Petrochemical industry, Chemical industry

Detail

Primaries / Differential pressure devices

-Mounting between flanges with welded connections Orifice with annular chamber or single tappings
Metering pipe with orifice plate, annular chamber or single tappings

Further:
Flanged orifice plate with flange tappings
ISA-1932-Nozzle
Venturi nozzle
Classical venturi

 

Orifice

 Nominal Sizes From DN 10 to DN 1000
From ½ inch to 40 inches
 Temperature Range From -60 to 570 °C
From -76 to 1058 °F
 Operating Pressure Max. 315 bar
Max. 4570 psi
 Process Connections Thread G½ and ½-14 NPT
cutting ring
Welding
 Orifice Material 1.7335, 1.4404. 1.4571, 1.4576 and further materials on request

Benefits

  • Orifice flowmeters are very robust and can be used in a wide range of nominal diameters
  • Suitable for wide ranges of temperature and pressure
  • No calibration required as the process is standardized
  • The electronics required in addition can be used over a long distance from the measuring location
  • The differential pressure measurement is well known and has a large installed base