#METALMARKETUPDATE – AUGUST ’23
The ISM Manufacturing Index (PMI) edged higher to 46.4 in July 2023 from a nearly three-year low of 46 in June, but below market expectations of 46.8. The reading pointed…
Tag: heat transfer
#METALMARKETUPDATE – JULY ’23
The ISM Manufacturing Index (PMI) fell to 46 in June 2023, from 46.9 in May. The reading pointed to a faster rate of contraction in the manufacturing sector since May…
Dimensional Tolerances
The ASME code has surprisingly few dimensional tolerances. In fact, in section U-5, the Code states that tolerances are not fully addressed, and allowable tolerances should be based on engineering…
#METALMARKETUPDATE – JUNE ’23
The ISM Manufacturing Index (PMI) fell to 46.9 in May 2023 from 47.1 in April. The reading indicated a seventh consecutive month of contraction in the manufacturing sector, as companies…
Heat Exchanger Fouling
Over time in service, deposits typically build up on the surface of tubes in a heat exchanger. This buildup is known as fouling and can occur on the inside or outside…
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…
