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Hello Dear experts, May I get some clarity on the construction sequence in a typical oil & gas plant facilities? Especially I am curious to know if the Pipe Supports comes first or the Piping above these supports first or is it like doing this together to avoid mismatches? I think Pipe...

thread483-144296 Can we get these kind of Flat O-Lets within The Netherlands. We need these now. Any clue? Thanks & Regards, Abhijit

thread378-337956 Dear All, I am in a situation wherein there is a 2" SS Drain piping to be supported by CS bolted clamped shoe. There are no insulators like liners etc. to avoid the contact in between the 2 different metals CS with SS. Kindly advice on this at the earliest about how this is...

thread1203-220529 Hello All, I do not find anything written in Shell DEPs confirming the requirement for bird screens on the open to air PSV outlets. Do anybody have similar experience on Shell projects? If you know it is mentioned in the DEPs pls direct me to the same. As per me it is...

Dear All, I have been recently visited a plant site for some revamp project information & saw steam leaking everywhere like at utility stations, steam traps etc. Most of the cases it was passing valves.... Steam leaks have multiple negative effects on steam-based plant operations, including...

Dear All, Could you pls advice whether the valves ordered are going to get supplied at site with open or in close position? Question is applicable for any kind of routine piping valve i.e. Gate/Ball/Globe etc. but at the moment it is more specific for Ball valve (lever). Pls let me know...

Hello guys, Have anybody heard of Flange FLOCS? These days I am hearing a lot about it on my current assignment. We are in detail design phase of the (revamp) project for a refinery & I am not able to understand what are these FLOCS? Do anybody have experience with these? What I heard about...

Dear All, Can anybody advice why the Shell Piping classes does not mention of the Flange Face types in it? How the one referring to it should understand what face type is specified for the flanges? Regards, cjabhijit Thanks & Regards, Abhijit

Dear All, Could you pls guide me to calculate Hydrostatic Test Pressure for below line? Actually I need to put the calculated test pressure value in the line list. Line service-Process Liquid (Crude from wellhead) Test medium-Water Spec-CS #900 piping Line size-4" Operating Press=18.7 kg/cm2...

Hi All, We are about to close out on the detail engineering work we were doing from last 2 years for a Wellpad project & handover the completed work. I am hearing a lot about the Punch list for the formal close out. Can somebody share the typical punch list with me? What are the other...

Dear All, We have a blow down header of CS 20" size wherein we need to have a 20 x 12 connection. As per PMS branch table it calls for Pipe to Pipe connection with RF pad. As per another clause in the Piping design philosophy it has been advised to have a lateral tee on the blow down header in...

Can someone give me the price information for Piping bulks like - Pipe, Flanges, Elbows, Tees etc? Or direct me to the websites wherein I can explore further? Thanks a ton. Thanks & Regards, Abhijit

WRT thread378-371363 need your feedback on this welded spec break issue. We have HP Steam service shown with a spec break in between #900 to #300 Piping without any flanges. There is no material difference, both the line ids have CS. HOWEVER, difference in between the thickness of joining pipes...

Dear All, I am working on MTO for a Oil & Gas project in Gulf. I want to know the per unit prices of the piping bulk items like Pipe, fittings, flanges etc. which will give me a feel of the cost variation in MTO as per project progress. We have some negative variation & I need to get an idea...

Hi All, I have dyke wall & we are running 4 lines bunched & running together however, I am not sure whether we can have combined penetrations through 300mm thick wall considering required sleeves & puddle flanges? I do not think so still want to confirm. I think we should run these lines...

Dear All, I am estimating MTO & coming across a line which is AIV Critical. I want to know if the line is AIV critical, what kind of effect will come on the MTO of that particular line. I believe, branching is quite different in AIV critical lines to overcome possible leakage due vibrations...

Hi All, Pls help me to know the step by step procedure to calculate Pipe to Pipe branch connection. The question is to understand the logic behind developing branch table in Piping Material Specification. Can somebody advice how to go about it? Thanks & Regards, Abhijit

Dear Experts, Pls help me with this, I have a threaded connection in the Fire Fighting system where we are connecting CS Blind 2" flange with a 3/4" threaded hole where we are connecting SDSS/CuNi 3/4" Nipple/Pipe NPT(M). I believe we will have a corrosion issue if we do this because of...

Hello Dear Experts, Need your help on this. Want to expand a 20" NPS line from 20" to 44" connecting to a 44" Nozzle. What are the options? Can we check the possibility of getting the nozzle size changed from Vessel vendor? If it is not possible what no. of reducers? Is it 3 as per 16.5 i.e...

Dear Experts, Need your quick help on the subject line. In general What I think is ASME B 31.3 is far more conservative when calulating Thickness of Pipe when compared to Pipeline Code ASME B 31.4/31.8. The reason being Safety in Process plant environment is considerably critical when...