Back To Top
Daniel Orifice Meter Tubes
Daniel™ Orifice Meter Tubes significantly minimize the adverse effects of turbulence on flow measurement accuracy by expertly combining a Daniel orifice fitting (Senior™, Junior™, Simplex™ or Orifice Flange Union) and a flow conditioner or tube bundle with the appropriate upstream and downstream pipe lengths based on end user requirements.
Built by code-qualified welders with decades of experience, Daniel meter tubes adhere to the hightest quality standards to ensure internal roundness, a smooth, even surface finish, and precise alignment with no steps or offsets for enhanced long-term measurement performance. Pre-assembly at the factory allows for rapid installation to save time and reduce startup costs.
Daniel Orifice Meter Tubes


Measurement Type
Differential pressure
Fluid Type
Liquid, gas
In accordance with AGA 3/API 14.3, ISO 5167
Line Size
2-in to 24-in (50-mm to 610-mm)
Max. Operating Pressure
ANSI 2500
Process Temperature Range
-20°F to +160°F (-29°C to +71°C )
Flange Type
Flangnek and Flanged up ANSI 2500
Process Wetted Material
Carbon Steel (WCB and LCC), 316/316L Stainless Steel, Duplex Stainless Steel
Trim Options
Standard Service, Sweet Service, Sour Service, Low Temperature


  • The key requirements of a successful gas measurement solution are speed and accuracy. Upgrading your Daniel Gas Ultrasonic Meter to 3410 Series Electronics provides expanded meter capabilities and helps to ensure rapid measurement accuracy. A 3410 Series
  • Significantly minimize the effects of turbulence with precise alignment that eliminates steps or offsets
  • Simplify startup and improve long-term use with one .5-in and one .75-in branch connection on the downstream tube
  • Meet application and/or installation needs with weld fitting and ends that can be beveled, flanged or reduced
  • Ensure performance in accordance with ASME with optional hydrostatic testing to 1.5 times operating pressure
  • Rely on thorough testing of tap hole and plate seal integrity following pressure testing
  • Verify and allow for field compensation using factory-supplied micrometer and internal surface roughness readings
  • Improve durability and extend product life with optional sand-blasted and corrosion-resistant coatings