We have a number of 2205 duplex heat exchangers in our facility that have 316 stainless steel threaded plugs incorporated into their design. These exchangers operate at approximately 300°F, is anyone aware of experiences whereby plugs in this type of service leak? Also, Does anyone have any...
In the NACE RP0170 they recommend the use of an alkaline surfactant when using a soda ash wash solution to promote penetration of coke, scale, or oil films. My question is, what is an alkaline surfactant?
In response to the comments/questions identified;
1. I agree that not having problems in the past is not a sound definitive basis for approving a fabrication technique, but I also think that some credit should be given for the past successes of a fabricator. Though the technique is not...
I am working on a project which utilizes 2205 duplex stainless steel, my question involves heat tint. Most literature I have read on the subject specifies that heat tint must be removed from welds that are exposed to the process fluid. However, experienced and successful fabricators have...
