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405A Compact Annubar Primary Element

Brand: Rosemount
The Rosemount 405A Compact Annubar Primary Element is an averaging pitot tube that delivers reliable measurement accuracy. Engineered to install between raised-face flanges, this sensor eliminates the need for impulse piping and additional process penetrations for straightforward, cost-efficient installation. 

The patented T-shaped design includes a flat upstream surface for high performance over a wide flow range and a stagnation zone for a reduction in noise and measurement inaccuracies.
Features
  • Compact pitot tube designed to fit and install between raised-face flanges for straightforward installation
  • Eliminates the need for impulse piping and added pipe penetrations for a cost-effective solution
  • T-shape sensor with flat upstream surface offers a fixed separation point for high performance over a wide flow range
  • Sensor stagnation zone positioned to reduce noise, measurement inaccuracies and keeps particulates from clogging
  • Integral centering ring ensures proper alignment in the pipe for accuracy
  • Integral thermowell adds process temperature measurement without additional pipe penetrations
The Rosemount 405A Compact Annubar Primary Element is an averaging pitot tube that delivers reliable measurement accuracy. Engineered to install between raised-face flanges, this sensor eliminates the need for impulse piping and additional process penetrations for straightforward, cost-efficient installation. 

The patented T-shaped design includes a flat upstream surface for high performance over a wide flow range and a stagnation zone for a reduction in noise and measurement inaccuracies.
Features
  • Compact pitot tube designed to fit and install between raised-face flanges for straightforward installation
  • Eliminates the need for impulse piping and added pipe penetrations for a cost-effective solution
  • T-shape sensor with flat upstream surface offers a fixed separation point for high performance over a wide flow range
  • Sensor stagnation zone positioned to reduce noise, measurement inaccuracies and keeps particulates from clogging
  • Integral centering ring ensures proper alignment in the pipe for accuracy
  • Integral thermowell adds process temperature measurement without additional pipe penetrations

Specifications

Enclosure, Body Material

  • 316 Stainless Steel

Media

  • Fluids
  • Gas
  • Steam

NACE & NIST

  • NACE MR-0175, ISO 15156

Size

  • Line Size: 2” to 8”

Temperature Range

  • -100° to 454° C (-148° to 850° F)

Wetted Materials

  • 316 Stainless Steel