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  • Users: 302Hugo
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  1. 302Hugo

    B31.3 345.3.1 (b) Joints Exposed Question

    Hey all. We are looking to re-rate a section of piping to a higher MOP. Currently all of this piping is insulated and I am trying to determine if I need to remove all of that insulation or if I can test in place. Our new MOP will still be lower than the ANSI rating for that section (why they...
  2. 302Hugo

    Required Leak Test - Threaded piping, Nipples, etc.

    Good day. I found some topics here but none of them seemed to answer my question. Note this is for B31.3 Normal Fluid service. I feel section 345-Testing in B31.3 does not do a well enough job describing testing requirements for threaded piping. I think I have 2 basic issues that need...
  3. 302Hugo

    Actuated Valve Tagging - ESD, SBV, etc.

    Can someone help point me in the right direction on whether there is a standard on the proper naming convention for actuated valves that are used for certain purposes? For instance if an actuated valve is used for an emergency situation and meet certain criteria (such as it fails last) it must...
  4. 302Hugo

    CSA Z662 - Reducing Flanges Interpretation

    If there is one thing I hate about being an Engineer it is interpreting Codes, lol. I am being asked more and more from the field on if tapped flanges, centerline or off center, can be used. I feel I have a decent understanding on the requirements laid out in B16.5/B31.3. However, I am a...
  5. 302Hugo

    B31.3 and/or CSA Z662 - Pressure/Leak Testing on Threaded Piping

    Pressure/Leak testing has always confused me and I'm hoping someone can give me the likely easy answer? Testing requirements (the basics) are relatively the same for both B31.3 and CSA Z662 so I assume the answer doesn't change between the two? I think the answer is simple but thought I would...
  6. 302Hugo

    Strength Test After Backfilling

    I am trying to find this answer but I can't. I have been recently asked why we backfill prior to doing the strength/leak tests on a CSA pipeline. I can't recall the definitive answer but all I can remember is that is the way it is. My colleague is saying we would be able to find the leak...
  7. 302Hugo

    CSA (PN) Flanges and ANSI Flanges

    I am getting so confused and I'm hoping someone with knowledge on these flanges can help me out. I am trying to order CSA Z245.12 flanges with the PN rating so that we can design our piping to 9930kPa @ 85C. When I spoke with our vendor he sent me a quote for CSA Z245.12 Gr. 359 flanges but it...
  8. 302Hugo

    Increasing Pipeline Install Temperature After the Fact

    I am in Alberta Canada. We have come across a situation that we have identified a pipeline that was installed back in the 90's had an install temperature of 10C, which puts us at a max operating temperature of 75C, however our max operating temperature of the pipeline is 85C based on the...
  9. 302Hugo

    Pile Frost Heave

    We are seeing some possible frost heave on some of our pipe rack. They are steel driven piles and the geo is sandy and water table is high. I was hoping someone can provide advice. My main question is can we expect the piles to return to normal elevation when the frost subsides? Or will the...
  10. 302Hugo

    Pressure-Volume Chart for CSA Z662 Strength Test

    In CSA Z662-11 clause 8.7.4.2 states that the maximum strength test pressure should not produce a deviation of 0.2% from the straight-line proportionality on a P-V plot for the test section. Now I'm not sure if this is an easy question to answer, or if it's detailed...but how does one draw a...
  11. 302Hugo

    Pressure Test of Flanges in CSA Z662

    Good day, I have ready CSA Z662 and I find it is not clear and I'm hoping someone can clarify if they have the same experience/knowledge. In the following situation, is it required to pressure test the flange by itself: We are cutting into an existing piece of pipe and will be welding on a...
  12. 302Hugo

    Belt Requirements on VFD Motor

    I am trying to size out belts for a 400 HP driver at 1800rpm and I am using the typical V belt selector graph. At this setting the choice would be 5VX belts, however this driver is also on a VFD with 3:1 turndown. So according to the graph once you slow down the RPMs lower than about 1500, it...
  13. 302Hugo

    P/V Valves on Drain Tank Vents

    It was brought up to our department that we should be looking in to see if flame arrestors (or pressure/vacuum valves) are required on our drain sump tank vents. These tanks would be about 5 cubes and used for seal leaks, piping drain down, and in some cases pop tanks. The fluids being...
  14. 302Hugo

    Tank Nozzle Codes/Standards

    Good day, I've been asked by operations to review a tank nozzle we have on one of our 90,000 bbl tanks. I have zero experience with tanks. They would like to attach a transfer pump to an existing 8" nozzle. We are unsure of what the inside of the nozzle looks like (they are currently...
  15. 302Hugo

    SS vavle in CS piping

    I'm not familiar with corrosion engineering, and I can't remember the rules along using SS in CS piping, and vise versa. I beleive the general rule of thumb is that you want to have more CS than SS, correct? I am installing a valve in CS piping, but I can only procure a SS body valve. Would...
  16. 302Hugo

    Valve Requirement on Tank

    I wasn't sure if this question is better suited in here or just in the pipelines/piping forum. I have a question regarding welded tanks for oil storage (100,000 bbl in this case). I am in Alberta CA. We are looking to install piping off an 8" nozzle on the tank. However, at some point...
  17. 302Hugo

    Engineering Handbooks

    Management is going to allow me to purchase a few Handbooks for the office. I'm in the projects/tech services of our pipeline and LACT department. We deal with everything from pipelines, facility piping, structural, tanks, fluid process, pumps, fasteners, HVAC, etc. In your opinion what are...
  18. 302Hugo

    Flame Arrestor on Tanks

    It was brought up to our department that we should be looking in to see if flame arrestors are required on our drain sump tank vents. These tanks would be about 5 cubes and used for seal leaks, piping drain down, and in some cases pop tanks. From what I know, I believe all these tanks are...
  19. 302Hugo

    Air Compressor Receiver Testing

    We are looking at moving a 80 GAL T3 Ingersoll Rand air compressor setup from one site to another. It has not operated in about 5 years. What requirements are there to ensure it is still fit for purpose? Is a pressure test and NDT required?
  20. 302Hugo

    Fire Protection for Facilities

    Are there any codes or standards which regulated fire protection systems for tank terminal facilities and LPG vessels in Alberta? The National Fire Code of Canada? What about the NFPA? I've been doing some searching and I've found a couple API publications (2610, 2510A, 2218, and 2030), but...

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