Mustang Certiprobe® Threaded Sample Extractor

The Mustang Certiprobe® threaded sample extractor is a sample probe conforming to the requirements of ASME B31.3-214.

The threaded Mustang Certiprobe is the initial access point for a sampling system within a natural gas, natural gas liquid, chemical process, or biogas pipeline or vessel.  The Certiprobe is available in a variety of lengths, materials, and pressure ratings to accommodate a wide range of applications in threaded configurations.

The Certiprobe sample extractor design includes Nondestructive Examination (NDE) of Positive Material Identification (PMI) and Dye Penetrant Inspection (DPI) for all welds. Stress analysis is performed, using pipeline conditions, prior to pipeline installation.


  • Customer-specified metallurgy & rating
  • Includes NDE, Dye Penetrant (PT), Hydrotest, and PMI (if requested)
  • Threaded design
  • Large bore diameter
  • Flanged design available
  • Designed for high velocity gas stream


  • Conforms to ASME B31.3-214
  • Compatible with Mustang Certicollar® Mounting Brackets
  • Can be used with a threadolet (TOL)
  • Helps preserve sample integrity
  • Does not require special insertion device or hydraulic fluid
  • Horizontal or vertical mounting
  • Sulfinert® coating available


Maximum Pressure Design ANSI Class 2500
Wetted Materials 304 & 316 SS, Hastelloy C-276, & CS
ANSI Rating 150 psig
300 psig
400 psig
600 psig
900 psig
1500 psig
2500 psig
Probe Length 2” Length
4” Length
7” Length
9” Length
Custom - Specified in inches from base of thread to probe tip. Contact for customized options.