Rosemount 405 Compact Orifice Flowmeter Series

(Includes Rosemount 3095MFC Compact Orifice Mass Flowmeter, Rosemount 3051SFC Compact Orifice Flowmeter, and Rosemount 405 Compact Orifice Flowmeter)

The Rosemount 405 Compact Orifice Flowmeter Series is designed for closed loop control and general purpose monitoring applications. This design lowers the total installed cost of DP Flow measurement points eliminating the need for fittings, impulse tubing, valves, adapters and manifolds by providing a single device packaged together for simplified installation. By integrating Rosemount pressure transmitters with the 405 Compact Orifice primary element, we deliver the highest performing Flowmeters which arrive assembled, calibrated, pressure tested, and ready to install.

The 405 Compact Orifice is available in two orifice styles: Conditioning and Standard. The 405C Conditioning Compact Orifice is ideal for applications with limited pipe run.  Only requiring 2 pipe diameters from an upstream disturbance (double elbows, valves, reducers), the 405C Conditioning Compact Orifice delivers + 0.5% accuracy.

Savings in excess of 50% can be realized when compared to a traditional orifice plate installation.

• Reduced straight pipe run
• Less expensive than an orifice plate installation
• Accurate and repeatable
• Centering mechanism
• Based on ASME / ISO corner tap design

In addition to the 405C Conditioning Compact Orifice, an orifice plate offering is available with the 1595 Conditioning Orifice Plate technology and provides the same accuracy and performance you achieve with the Compact design.

Technical Documentation

Product Data Sheet (PDF @ 260 kb)
Manual (PDF @ 1.6 Mb)
405 Compact Orifice Series and 1595 Conditioning Orifice Plate Flow Test Data Book and Flow Handbook (PDF @ 2200 Kb)
Wet Gas Flow Measurement with Conditioning Orifice Meter Flow Test Data Book and Flow Handbook (PDF @ 900 Kb)

Rosemount ProPlate Flowmeter 

• Reliability is improved by eliminating impulse lines, reducing the possibility of plugging or freezing. 

• Accuracy is refined with available honed pipe sections, which provide tighter pipe ID tolerances and reduced wall roughness. 

• The special flange body and bolting design ensures the ProPlate flowmeter is centered in the pipe. This unique design practically eliminates the potential for misalignment errors, which are common when traditional orifice plate technology is applied to small line sizes.

Product Data Sheet (PDF @4.6Mb)

Pressure Transmitters   Temperature Sensors and Transmitters    Flow Transmitters   Level Transmitters 

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