A new shell and tube heat exchanger (fixed tubesheet) with U-stamp received from fabricator shop. tube side design pressure 12 bar. Before installation at site, it was discovered that the manufacturer has used undersized bolts at girth flange for channel box up though the bolt holes were drilled...
Dear All,
We are in 3D model review phase of a petrochemical plant. We are facing trouble for getting access to heat exchanger (vertical) bottom channel flange during maintenance.
Bottom flange is surrounded by steel structure which is required for platform to access operational nozzles. It...
Many of shell and tube type heat exchangers are equipped with expansion bellows on its shell body. Some of the bellows are equipped with locking collar arrangement and some without locking arrangement.
Is it necessary to lock the bellows while conducting shell side hydrotest of heat exchanger...
