Recent content by Corgas

Thanks RVAmeche and avalveman.

Steam valve on Waste Heat Boiler (475 psig set pressure). Valve was tested in 2013 and sat on shelf for 3 years and it was put in service in 2016. Operator says it's not past due since it's been in service for only two years even though last test date was in 2013. Is it past due? has anyone...

Colleagues, How do you assess swaged connections integrity in a flexsteel line that has been in service?

Colleagues, Here in the USA, is it mandatory that a FFS assessment needs to be signed/approved by a PE (Professional Engineer)? If there's something in writing, I'd like to read it. Thanks,

Hello colleagues, We are trying to sort out sheets that are supposedly made of BUNA N and FKM. Hardness shore A for both materials are very similar 70 vs 75. Is there another non-destructive method that we can use? Thanks in advance, Corgas

Hello colleagues, We are trying to sort out sheets that are supposedly made of BUNA N and FKM. Hardness shore A for both materials are very similar 70 vs 75. Is there another non-destructive method that we can use? Thanks in advance, Corgas

Came across two UL 142 tanks ( 650 bbls - cone roof) currently used to store slope oil. Just finished reading the UL 142 standard a didnt see anything on Lightning protection. DO they need to have lightning protection installed (as per API RP 545) even though these are not API tanks, Thanks...

BigInch : Which code will that be? I checked ASME B31.3 and there was nothing in there. Corgas

I found following chart to determine minimum spacing between pipes and between pipes and structures. Can anyone tell me if this is based on any published standard or code? Thanks in advance, Corgashttp://pipingdesigners.com/downloads/PIPE%20SPACING%20CHART.pdf

Thanks XL83NL & moltenmetal, In our company, we don't have an in-house standard that covers use of flex metallic pipe. I checked two (US) oil & gas major companies and both prohibit the use of flex metallic hoses for permanent process piping. Yes, I did look at table 326.1 and they list BS...

Hello, Can anyone tell me in which section of ASME B31.3 says that metallic flex hoses can not be used for permanent process piping? Thanks in advance, Corgas

In ASME B31.1 parag 108.5.1 : "Bolts and bolt studs shall extend completely through the nuts". Is there a similar wording in ASME B31.3? Thanks, Corgas

I've read thread 292-69658 and in that thread some members of this forum mentioned that they've used ASME B31.8. I went back and read again ASME B31.8 - 2010. According to 802.1(b)(6) flow lines between wellhead and/or separator traps are outside scope of this standard. This is also shown on Fig...

EdStainless, Agreed. The only publication that I've seen that shows some correlation is B.J.Little, P.A. Wagner and R.I. Ray, "An Experimental Evaluation of Titanium's Resistance to Microbiologically Influenced Corrosion", paper presented at NACE Corrosion/92, Preprint No 173, 1992 . They...

Thanks both metengr and brimmer. Cladded vessel (separator) has shown extensive pitting due to MIC (sample already taken to id type of bacteria). Material is 304L and damage is confined to below water level (between 4 and 8 position). What material would you recommend to repair existing...