Has anyone looked at the flange rating table in Part 3 of ISO 15590 ...
Can anyone explain the high temperature ratings of Class 1500 and 2500 ...
Questions:
1. The 250 C rating (225 bar) of Class 1500 is higher than both the 175 and 200 C ratings which are 219 and 225 bar respectively.
2. The...
Does anyone have any idea why Clause 4.8.4(4) of NFPA 52 specifically prohibits the use of aluminum for pipe, tubing and fittings in CNG service ?
I don't have any experience with CNG service but from what research I have conducted, aluminum is a good choice for product compatibility, it has...
Anyone know where I can find copies of Nigerian Regulations applicable to offshore Oil & Gas online anywhere ?
For example ...
Drilling and Production Regulation (and ammendments)
Oil and Gas Pipelines Regulation
Petroleum Regulation
I've found most of the legislation (acts) and some...
I'm going to be having some o-rings pulled out of a valve to be assessed for how well they have performed after several years of service. I'm asking to have the valve manufacturer prepare a report including detailed pictures of the O-rings but I'd also like an "objective" evaluation of O-ring...
I need to spec out some high pressure ball valves for dry CO2 injection (between 1000 and 3000 psig) and was wondering about trim.
No prior experience with high pressure CO2 per se but after researching, I'm thinking electroless nickel on carbon steel for the ball and stem (since the service is...
Does anyone know why NACE withdrew RP0475? Is there another similar standard out there (i.e., ISO) or is there no current accepted industry standard for these systems?
The typical trim in small floating ball valves is Austenitic Stainless Steel (304 or 316); this is what is stocked and readily available.
In the good old days, 304 & 316 SS was accepted by NACE MR0175 as suitable for sour service so there was no issue with the standard 304 or 316 trim and these...
Clause 8.0 of NACE MR0175/ISO 15156 indicates that typical maximum sulfur levels of 0.003% in flat rolled products, 0.01% in seamless products and 0.025% in forgings and castings are used to ensure materials are not sensitive to HIC or SOHIC.
I'm looking for some feedback as to how many end...
