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GE RHM 20 Specifications
GE RHM 20 Specifications

GE RHM 20 Specifications

Medium sized coriolis mass flowmeter

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GE
Measurement & Control
RHM 20
Medium Sized Coriolis
Mass Flowmeter
The RHM 20 can measure flow rates up to 300 kg/
min (661 lb/min) with temperatures in excess of
350°C and pressures up to 392 bar. This model is
medium sized with true reliability for a versatile
solution, manufactured by GE's Rheonik mass
flowmeter experts.
Applications
• General control • Dosing
• Batching
• Injections
Features
• Suitable for pressure up to 392 bar
• Flow uncertainty down to 0.15%
• Density uncertainty down to 0.5%
• Repeatability better than 0.05%
• Unique torsion oscillator
• Typical measuring ranges from 3 to 300 kg/min
• Minimal flows as low as 2.25 kg/min
• Optimized solutions for batching operation
• Customization possible
• Hazardous Area Approvals (ATEX, CSA, ...)
g
• Mixing
• Filling
Advantages
• Torsion oscillator design assures most stable and
basically drift free measurement and increased
signal to noise ratio
• Not sensitive to changes in pressure
• Longest life time and increased safety (low stress
in welds and increased wall thickness against
abrasion)
• No moving parts, practically no maintenance
• Removable connection manifold available

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Summary of Contents for GE RHM 20

  • Page 1 RHM 20 Medium Sized Coriolis Mass Flowmeter The RHM 20 can measure flow rates up to 300 kg/ min (661 lb/min) with temperatures in excess of 350°C and pressures up to 392 bar. This model is medium sized with true reliability for a versatile solution, manufactured by GE’s Rheonik mass...
  • Page 2 General Dimensions RHM 20 PM0/SM0 (parallel/serial manifold construction) Process Connection Face to face length (L) Order Code Standard Female Thread G 1" 5.35 Female Thread 1" NPT 5.35 Type removable manifold with PTFE seals and thread connection Process Connection Face to face length (L)
  • Page 3 General Dimensions RHM 20 PF0 (parallel, sealless construction with flange connection)) Process Connection Face to face length (L) Order Code Standard Flange DIN DN50/PN40 18.11 Flange DIN DN50/PN100 19.69 Flange ANSI 2" 150# RF/SF 18.11 Flange ANSI 2" 300# RF/SF 18.11...
  • Page 4 General Dimensions RHM 20 SF0 (serial, sealless construction without dead spaces) (*) Process Connection Face to face length (L) Order Code Standard Sanitary 1" Triclamp, 13.78 DIN 32676 Sanitary NW20, DIN 11851 13.78 Type single path, welded measuring loops without seals and sanitary connection...
  • Page 5 Pressure Rating RHM 20 The maximum pressure (pmax) of a sensor is determined by its weakest part. The weakest part can be the measuring loops (pmax indicated below) or the construction type (pmax indicated in the Basic Order Code section, last page) or the selected flanges / fittings (for pmax please see respective standard).
  • Page 6 Performance RHM 20 Max Flow Rate Qmax and Qnom (*) = 300 kg/min (661 lb/min) Uncertainty % DP (bar) Standard Models Flow Rate Uncertainty kg/min lb/min in % of reading 0.20 0.20 0.20 33.1 0.20 13.2 0.50 Flow Rate kg/min...
  • Page 7 General Specifications RHM 20 Temperature Range • NT Models from -20 to +120°C (-4 to +248°F) • ET Models from -45 to +120°C (-49 to +248°F) • ET2 Models from -45 to +210°C (-49 to +410°F) • ET1 Models from -196 to +50°C (-320 to +122°F) •...
  • Page 8 920-499A © 2013 General Electric Company. All Rights Reserved. Specifications are subject to change without notice. GE is a registered trademark of General Electric Company. Other company or product names mentioned in this document may be trademarks or registered trademarks of their respective companies, which are not affiliated with GE.