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Differential pressure flow
Deltatop DO69S

Orifice: special designs for differential pressure flowmeter system based on international standards

  • Deltatop DO69S - orifice ©Endress+Hauser
  • Measuring principle differential pressure flowmeter

The Deltatop DO69S is part of the universal differential pressure flowmeter systems. With venturi tubes, nozzles, orifice plates and Deltabar differential pressure transmitters. In addition to the standard products DO61W, DO62C, DO63C, DO64P, DO65F, Endress+Hauser also supplies primary devices in the form of orifice plates in a wide range of special designs which cannot be specified within the framework of the standard products mentioned above.


  • Customized or application-specific flowmeter systems based on the differential pressure method for special applications

  • Optimized for minimum pressure loss, maximum accuracy or maximum turndown

  • Measuring range of the Deltabar differential pressure transmitter adjusted on delivery

  • Based on international standards (e.g. ISO 5167)

  • Cost-effective solution thanks to its robust design without moving parts

Field of application

Flow measurement of gases, steam and liquids.

  • Pipe diameters from DN10 (3/8") to DN2000 (80")

  • Medium temperatures: -200 to +1,000°C (-328 to +1,832°F)

  • Pressure up to 420bar (6,300psi)

  • Compliant with PED 97/23/EC

  • NACE-compliant materials

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Endress+Hauser Inc.
2350 Endress Place Greenwood , IN 46143 United States
Tel.: 888-363-7377
Fax: 317-535-8498
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