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Differential pressure flow
Deltatop DO64P

Plate for international standardized differential pressure flow measurement

  • Deltatop DO64P ©Endress+Hauser
  • Measuring principle differential pressure flowmeter

The Deltatop DO64P is part of the differential pressure flow measurement with orifices and Deltabar differential pressure transmitter. It is an orifice plate for mounting between two flanges.


  • Selectable according to the application: operational compact version or modular remote version

  • Optimized for minimum pressure loss, highest accuracy and maximum measuring dynamics

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

  • Measurement method globally standardized according to ISO 5167

  • Optional symmetric orifice for bidirectional measurements

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

Field of application

Flow measurement of gases, steam and liquids.

  • Nominal diameters from DN25 (1") to DN1000 (40")

  • 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

Features and specifications

Documents / Manuals / Software

Accessories / Spare parts

Predecessor / Successor

Predecessor: Deltaset DPO53A, Deltaset DPO53E

Success stories


Endress+Hauser AG
Kägenstrasse 2 4153 Reinach BL Switzerland
Tel.: +41 61 715 7700
Fax: +41 61 715 2888
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