#METALMARKETUPDATE – FEBRUARY ’23
The ISM Manufacturing Index (PMI) fell to 47.4 in January, the lowest seen since May 2020. This is the third consecutive contraction in factory activity, for what is assumed to…
Tag: shell and tube heat exchangers
“The Perfect Order” – #MetalMarketUpdate – January 2023
This bit of wisdom came from a long-time friend and co-worker who received this sage advice from a leader in the Corps of Cadets at Virginia Polytechnic Institute: “If you…
Seal vs. Strength Welds
Heat exchanger tube end welds can be specified as strength welds or seal welds. What is the difference? The tube to tubesheet joint is a critical component of the exchanger…
#METALMARKETUPDATE – JANUARY ’23
The ISM Manufacturing Index (PMI) fell for the second straight month to 48.4 in December, following a score of 49 in November. The reading shows further contraction in factory activity,…
“It’s Supposed To Be Screwed Up” – #MetalMarketUpdate (December 2022)
We sometimes ask ourselves “why are there so many problems?!” in our daily work efforts. Perhaps the better question to ask ourselves is “how do I navigate the challenges in…
Collar Studs in Heat Exchangers
What are collar studs, and when are they used? Collar studs are threaded studs with a larger central hub attached (see diagram). They are commonly used on exchangers with removable…
