For a tank that has been in service, designed, and constructed to API 650 with no x-ray performed: Does the Code (any Code) allow the owner to perform a spot x-ray on the shell to effectively reduce the required minimum thickness? I have looked in API 579 but did not find anything that addresses...
Appendix F talks about acceptable nozzle loads when a vertical in-line pump is "supported only by the piping". What about when the pump is bolted to a skid, as when it is a part of packaged equipment. What criteria should be used to evaluate the pipe loads? is it reasonable to use the suction...
A lot of times, a sunshade is provided to protect the housings from solar heating at times when the RO is "Off Line" for whatever reason. Having the water heat up due to solar can promote biological growth in the membranes, which is then difficult to clean.
As mentioned above PVC us...
Determining the MAT of a piping system is pretty straight forward for pipe, flanges, etc. My questions are about the bolting components.
First question: Section 3.4.2.1.c Step 1.4 sets the initial MAT at -55 deg F for the nuts. if the nuts are heat treated somewhere in the manufacturing...
We have a number of pressure vessels built to ASME Sec VIII in the '60s that are now being assessed for brittle fracture due to possible autorefrigeration conditions. No consideration for low temperature (less than -20 deg F) were taken in the original design, and therefore assume that the...
We have an existing vessel originally designed in 1967 for a design temp of 150^F. There now exists the possibility of auto-refrigeration, so the vessel MAT needs to be determined per API-579 section 3.
After performing a Level 2 , Method A for all of the components over the pressure range of 0...
We have a tank that was built in 1966 to API 620 for 10 psig. We want to re-rate it. So, I start looking at the design details and discover that the top compression ring does not match any of those shown in Fig 5-6. It actually looks like one in API 650 F-2, detail "k".
My question is: can I...
Does anybody have experience with the Etank software and what are your opinions on it?
We are looking to re-rate a number of API tanks and are considering two options: design our own spreadsheet or a commercially available software package.
We have a number of tanks that were built to API 620 & 12F a number of years ago. The design paperwork has been lost and we need to assign a pressure/vacuum rating. So, how does one do that?
I am thinking that you would need to go through the inspection and testing portion of each of the...
I trust you saw this earlier thread?
http://www.eng-tips.com/viewthread.cfm?qid=290973&page=2
That being said, We used SolidWorks flow simulation software to model a 6" relief valve discharge pipe 6' long with an elbow. To simulate the valve, we took a converging nozzle and adjusted the throat...
We are modeling a relief valve 6" outlet pipe/elbow 6' long discharging to atmosphere. We have modeled the relief valve with a converging nozzle where the throat area has been adjusted to give the capacity required for the set of inlet conditions.
All of the outlet parameters (outlet pressure...
I bought a website program, developed it myself, and now am looking for a web host to upload and publish to a Host.
I see there are a lot out there (Inmotion, GoDaddy, FatCow, HostGator,...). All seem to offer pretty much the same. So, I am curious what do you use and are the advertised prices...
