Search results for query: *

Hi, quick question - CSA Z662 is pretty quiet on buried flanges in their design which could be translated as it is allowed to use. I know that certain client codes and specifications "discourage" the use of underground flanges, but sometimes these cannot be avoided. I am not talking about...

Hello, I am working on a 30" HDPE pipeline which has been built in various sections by various contractors at various times. Every contractor is being asked to individually test his scope following CSA Z662-15 (@1.25 DP and for around 6 hours, including stability time and hold time). The last...

We have a 30” buried HDPE water pipeline designed and built as per CSA Z662. Due to space limitations and non-availability of long radius elbows, we are using standard 1.5D fittings. The pipeline runs about 2 Km outside and 2 Km inside the plant. This line shall be constructed at different times...

PUP PIECE is usually this is described as. In my opinion if you are inserting a piece of pipe as a "fill in" in the field to make up the length or for any such reason, it is pup piece. These kind of pieces are usually from : to couple of ft max

I have an on lease pipeline for natural gas already up and running. Its a buried 16" line about 4 Km long. As it is on-lease so it does not require AER registration but it does need to be registered with ABSA as this is to be considered a process piping. The issue is that my pipeline is designed...

Thanks GD2, yes, I did not check Directive 77 part B. I just looked at part A of it and as the AER does not require this to be registered as being on lease so I did not bother looking in Part B. I will look into it now. Thanks for your response though

Hello, I have some U/G pipelines 24" and 16" in diameter and about 4-5 Km long which are on lease. I looked up in AER (Alberta Energy Regulator) and I think the registration for those is not required with AER as those are on lease. My question is about ABSA registration. Do those need ABSA...

I am asking CVN test for some seamless CSA Z 245.1 Gr 448 and 359 pipes from pipe mills. Z245.1 says in table 7 under which dia and thickness combination can the manufacturer use full specimen or 2/3 or 1/2 sized specimen. The question is do the values of absorbed energy 27J (for 16" and smaller...

Thanks for the input. The package does not include the pig barrel at all. All it includes is spools around the barrel area like kicker line, purge line, by pass line etc

I am preparing an RFQ package to be sent out to bidders for some A/G portion of pipeline on Pig receiver side.All the piping would be as per CSA Z662 and is in Alberta. I have few questions in this regard and will appreciate a quick response: In my understanding CRN numbers for the valves and...

While reviewing specifications of hot induction bends for buried pipeline, a question was raised as how the production bends are tested for hardness. ASME B16.49 states about the testing requirements. It states that we have to manufacture qualification bends first which should be exactly the...

I am having some hard time justifying the selection of FBE coating system for diluent (diesel) and natural gas pipeline. These are 6” and 16” respectively. Operating temperatures are around 40 and 60C. Client is insisting on YJ for normal and YJ2K for crossing while I suggested Dual layer FBE...

Hi, I work in Alberta/Canada and we get most of the pressure vessels used in oil and gas delivered to us while those are made ouit of province and sometimes across the border in US. My question is that sometimes we get U-1A form with the vessel confirming that it was made as per ASME Sec VIII...

I have a storage tank with oil elevation as 20m.A pipeline flows from the bottom about 500 m long and I want to know the discharge rate at the exit of that pipe.This can only be done if I know the discharge velocity.I am applying Bernoulli equation on the pipe exit point and tank top. Can I...