Rosemount™ 405C Compact Conditioning Orifice Plate Primary Element

Rosemount

Rosemount™ 405C Compact Conditioning Orifice Plate Primary Element

Rosemount

The Rosemount 405C Compact Conditioning Orifice Plate Primary Element offers a patented 4-hole design enabling accurate measurement in disturbed flow conditions. Unlike traditional plates, this conditioning orifice plate reduces pipe straight run, requiring only two pipe diameters (2D) upstream and downstream of the plate, providing a flexible and reliable metering solution. This orifice plate is compact, easy-to-install and features self-centering mechanisms for optimal accuracy

Specifications

Line Size
2 to 12 in. (50 to 300 mm)
Discharge Coefficient Uncertainty
Up to ±0.5% of flow rate
Flow Turndown
10:1 or better
Max. Operating Pressure
ANSI B16.5 600#, DIN PN100
Process Temperature Range
-148 to 850 °F (-100 to 454 °C)
Fluid Type
Liquid, gas, steam
Process Wetted Material
316 SST
Warranty
Up to 5-year limited warranty

Features

  • Patented 4-hole design enables accurate flow measurement in turbulent flow profiles
  • Innovative orifice plate requires only 2D upstream and 2D downstream to reduce pipe straight-run
  • Does not require impulse lines, special flanges or piping modifications for cost-saving efficiency
  • Offers direct-mount capability for ease of installation
  • Self-centering mechanisms simplify installation and ensure optimal flow measurement accuracy

Documents & Drawings

Training & Services