I have always heard that for assembly of bolted joints in heat exchanger, pressure vessel etc, it is always better to use Nickel Based Lubricant compound versus Copper based or Moly based. I am talking with reference to application in a conventional Petroleum Refinery only. Bolting material...
I am looking for some information on Stress Relieving requirements of Carbon Steel Tubes U Bends for Heat Exchanger (Material: SA179, Code API 660, ASME Sec VIII D1):
API 660 is not very clear and leaves it for the customer to decide. What should be the best approach in the absence of clear...
I am looking to purchase some flexible hose which are to be used in high pressure application (600 psig) at high temperature (700 deg F). Material of construction required is SS304 Corrugated with SS304 Double Braided. I am not sure if an hose for such a high pressure application would be...
API 560 Section 7.1.4 does not allow furnace tubes to be circumferentially welded to make up for the effective tube length for example 15' of two length of pipe to make up for 30' effective tube length by circumferentially welding two pipe ends. Does anyone know why and what are the risk of...
Hi !
I am trying to learn how to model piping in Caesar to be able to connect it to a vessel nozzle. I am familiar with creating and analyzing simple piping models. What I want to do is include vessel with pipe and let the software calculate displacement for the vessel connection. Is there any...
Hi All,
I have a vertical vessel 70 ft tall (60inch ID x 1" thk wall)where one of the manway is located almost 35 ft down from top of the vessel. We are doing some repairs on the manway neck and it would require PWHT due to service requirement. I am just wondering whether I need to support the...
