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IRD Series Natural Gas Analyzer

Brand: Welker, Inc

For real-time natural gas analysis of high-volume lines, you need a sample probe that can deliver a continuous supply of representative samples to your analyzer at the appropriate pressure. 

The Welker Original IRD Probe Regulator mounts directly to a hot tap or mating flange on your depressurized pipeline and has a fixed insertion length to extract the most representative sample from the center one-third of the source stream.
Features
  • Fixed insertion length
  • Pressure-regulating probe tip with thermal fins
  • Low internal volume
  • Multiple pressure control ranges
  • Welker Spring Range Kit (IRD-4SS option)
Benefits
  • Collect representative samples from the center one-third of the pipeline
  • Regulation point in the pipeline
  • Mitigate the Joule-Thomson effect and prevent sample condensation
  • Reduced lag time
  • Real-time sample analysis
  • Adaptable to pressure requirements of downstream analyzer
  • Easily swap springs to change the output pressure range for a new application or downstream device (IRD-4SS option)

1 - 4 of 4 Part Numbers
IRD-1
IRD-1
75-200 psig (5-13 barg)
IRD-2
IRD-2
100-500 psig (6-34 barg)
IRD-4
IRD-4
0-25 psig (0-1.7 barg); 0-50 psig (0-3.4 barg); 20-100 psig (1.3-6 barg); or 75-200 psig (5-13 barg)
IRD-6
IRD-6
250-1500 psig (17-103 barg)
1 - 4 of 4 Part Numbers

Specifications

Brand

Materials of Construction

  • 316/316L Stainless Steel
  • Kel-F®
  • Viton

Connections

  • Outlet: ¼” FNPT
  • Pipeline: ½”, ¾”, 1” or 2” MNPT

Output Range

  • IRD-1: 75-200 psig
  • IRD-2: 100-500 psig
  • IRD-4: 0-25 psig , 0-50 psig , 20-100 psig , or 75-200 psig
  • IRD-6: 250-1500 psig (17-103 barg)

Insertion Length

  • 2.2” Standard for 2” and 3” Pipe
  • 3.6” Standard for 4” and 6” Pipe
  • 5.9” Standard for 8”, 10”, and 12” Pipe

Flow Coefficient

  • IRD-1, IRD-2, and IRD-6: 0.092
  • IRD-4: 0.138

Operation

  • IRD-1 and IRD-4: Diaphragm-Operated
  • IRD-1, IRD-2, and IRD-6: Piston-Operated

Operating Pressure

  • IRD-1, IRD-2, and IRD-6: 5000 psig @ -20° F to 100° F
  • IRD-4: 3600 psig @ -20° F to 100° F

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