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Rosemount™ 1595 Conditioning Orifice Plate
The Rosemount 1595 Conditioning Orifice Plate primary element features a patented 4-hole design enabling improved accuracy in turbulent flow conditions.
This orifice plate requires a straight pipe run of only two pipe diameters (2D) upstream and downstream. Suitable for most gas, liquid and steam applications, this product is available in standard line sizes up to 24 in. (600 mm).
Rosemount™ 1595 Conditioning Orifice Plate


Max. Operating Pressure
ANSI B16.5 2500#
Process Temperature Range
-320 to 1200 °F (-196 to 649 °C)
Fluid Type
Liquid, gas, steam
Process Wetted Material
316/316L SST, Alloy C-276, Alloy 400
Up to 5-year limited warranty


  • 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 installation cost-saving
  • Offers direct-mount capability for ease of installation
  • Self-centering mechanisms ensure optimal accuracy and improve overall installation process
  • Available in larger line sizes up to 24 in. (600 mm) or custom line sizes for application flexibility