The RT-Bolts worked very well! We were very impressed with the repeatability of the measurements. I have spent years personally doing elongation readings on nuclear reactor pressure vessel (RPV’s) with floating measuring rods. The scatter in those RPV stud measurements was manageable when careful, but I have always found the vulnerabilities concerning. Dirt, grime, surface conditions and centering issues all conspire to create undesirable levels of scatter. The RT bolt scatter, even on this test that created oxidation and scaling was at least as good as what I have experienced with the most well-controlled laboratory measuring rods. Additionally normalizing on strain allows for a tremendously worthwhile simplification of the measurement analysis.

“I utilized the RT-Bolt solution in a research project, which led to the successful publication of a paper in 2023 PVP2023-103967. RT-Bolt's ability to record bolt stress at elevated temperatures provided comprehensive data, advancing our understanding of bolted flange joints in temperature cycling environments. The easy-
to-read dial gauge and straightforward data acquisition were particularly beneficial. Warren Brown and the IES team were very helpful, providing timely updates and detailed product information. Where critical bolt load monitoring is priority, I highly recommend RT-Bolt for its user-friendliness and effectiveness throughout 
temperature cycling environments."

“RT-BOLT has allowed us to assemble our BUD joints accurately and efficiently in addition to facilitating operational bolt stress measurement, allowing us to optimise our re-tightening intervals. We have been able to measure operational bolt stress to track reduction in bolt load over time. The team at IES were very helpful with instructing us on how to use our first set of RT-Bolts and were on hand to answer all of our questions. We would recommend RT-Bolts to the industry for ease of use and accurate results.”

“RT-BOLT has significantly improved our operations by helping us stop a chronic leak during the 2022 TAR. The ability to monitor bolt load was crucial, as exceeding the load could deform the SS girth flange. Warren Brown and the team at IES were extremely supportive, providing all the technical assistance we needed. I would recommend RT-BOLT to others in the industry for its effectiveness and support.”