IRM-3

New markets, and thus new requirements, initiated the development of the IRM-3 series. Revolutionary in the design of rotary gas meters are the square shaped impellers or rotors, resulting in a compact, robust meter with a high turn down ratio and with a minimum of maintenance required. The combination of the compact design and the dual rotor design enabled flow ranges up to 1600 m³/h and high performance up to 16 bar.


Technical data Downloads  
 

     IRM-3  IRM-3 DUO 
 Diameter  mm
 inch		  40 - 100
 1½ - 4		  150 - 200
 6 - 8
 Flow range size  metric
 imperial		  G 25 - G 250
 15C - 15M		  G 400* - G 1000
 23M - 56M
 Qmax  m³/h
 cfh		  40 - 400
 565 - 14000		  650 - 1600
 23000 - 56000
 Qmin  m³/h
 cfh		  0.6
 20		  4
 140
 Rangeability    1:100 - 1:160  1:100 - 1:160
 Maximum error of reading  Qt - Qmax
 Qmin - Qt**		  ±0.5 %
 ±2 %		  ±0.5 %
 ±2 %
 Repeatability  % of reading  < 0.1 %  < 0.1 %
 Body material    aluminium  aluminium
 Screwed connection    no  no
 Flange ratings  PN
 ANSI		  16
 150		  16
 150
 Pressure range  MPa g
 bar g
 psi g		  0 - 1.6
 0 - 16
 0 - 232		  0 - 1.6
 0 - 16
 0 - 232
 Temperature range
 (ambient, process)		    -20 to +60 °C  -20 to +60 °C
 Ingress protection    IP 44  IP 44
 Index  gradual / continuous
 standard
 optional		  350 °
 universal index
 compact index		  350 °
 universal index
 compact index
 LF-sensor  standard  4  4
 HF-sensor  optional  2  2
 HF-proximity sensor  optional  2  2
 Lubrication    integrated sump  integrated sump

* G400 for special applications
** Qt = 0.2 Qmax for rangeability 1:20
     Qt = 0.1 Qmax for rangeability 1:50
     Qt = 0.05 Qmax for rangeability > 1:50

Subject to change without prior notice











 
 


 


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