It seems there has been a few examples where vessels with internal coating had their flange facings painted. Flexitallic (gasket manufacturer) and painting contractors seem to consider this a typical practice specially for low pressure applications. That's where the senior engineer is coming...
On our project, a choice between a Unit Heater vs. Steam Coil for heating an Aircooler bundle is required. I was not really clear on how a Unit Heater works to heat the aircooler tube bundle. Any explanations?
I know this topic has been address in several forums, but none of the answers helped me too much.
I have a vessel that requires internal painting/coating. The senior engineer on the project insists that flange faces must be painted as well. Spiral wound gaskets have been specified for this...
I was wondering if anyone has an idea whether abrasive blasting may not be suitable before PWHT. I know almost everyone blasts surfaces for painting after PWHT and after hydrotest to avoid corrosion problems. However, would blasting negatively influence material properties (i.e. would be...
