Name: Rosemount&#8482; 91 Thermowell (Obsolete)
Brand: Rosemount

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