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Rosemount™ 91 Thermowell (Obsolete)
This product is now obsolete.
Relevant documents and drawings are listed below.
Contact your local Emerson representative for your measurement needs.
Rosemount™ 91 Thermowell (Obsolete)

Specs

Thermowell Calculations
Wake frequency calculation (WFC) performed by certified engineers, order R21 for official report
Certifications/Approvals
Material certification, NACE, CRN (see full specs for complete list of certifications)
Product Tests
External pressure test, internal pressure test, dye penetration test

Features

  • Available in threaded, flanged, welded or sanitary mounting styles for application flexibility
  • Straight, tapered or stepped stem profiles to meet process requirements
  • Large selection of thermowell materials to ensure compatibility with the process and process piping
  • Optional Wake Frequency Calculation report verifies process compatibility
  • Available with NACE approval to meet MR0175/ISO 15156 and MR0103 requirements for sour gas applications
  • External pressure test option confirms structural quality and checks for leaks at thermowell connection and stem

Education

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