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  1. LittleInch

    Small Pedestrian Bridge Concept Design

    The thing here though is that is is not really what your title said - "small pedestrian bridge". It's a one carriageway bridge, but this isn't "small". I'm typing this in a room I know is 4m wide and its enormous for a pedestrian bridge. And 16m long presumably bank to bank is a long way. You...
  2. LittleInch

    Pipeline transporting Naphta and jet fuel

    Get any water in jet fuel and you've got serious trouble.... My guess is that for 500m length these lines were poorly coated and had no CP. Might also be coastal and with high salt content in the ground.
  3. LittleInch

    Food dispenser for cats

    Most things I hear about doing this use tik tok. Spoiler alert - neither me nor I suspect 99% of the users of this platform know how to actually do that.
  4. LittleInch

    Backup fuel for pilot

    Usually yes it does. It's not really a code thing, but more a risk/ safety issue about how can you operate without a lit flare without potentially creating a large explosive cloud if the pilot isn't lit. Loosing the pilot on a flare is usually a huge issue for a plant or rig and hence at least...
  5. LittleInch

    Piping Material Grade Query

    Best not to mess with pig traps. If you can isolate it just cut into it and weld a tee.
  6. LittleInch

    Piping Material Grade Query

    Why don't you just hot tap that line at the bottom? Or even cold tap it.
  7. LittleInch

    Small Pedestrian Bridge Concept Design

    Four metres wide?? you have some large individuals crossing this bridge then if you want to make it cheap. Clear span of 16m? Kind of limits you to steel of some sort. Why not just buy a prefabricated one? People like this abound http://crescentmarineaccess.com/commercial.html The potential...
  8. LittleInch

    Standpipes

    Pretty sure that so long as you flange the standpipe connection this is outside the boundary mark of a pressure vessel. The pressure boundary diagram in any of the codes will tell you or describe where a PV finishes and where piping commences.
  9. LittleInch

    Piping Material Grade Query

    Hmmm, still weird. Most company I know gave up flowing trough the trap against a quick opening door on a regular / normal basis decades ago as the risk of leakage was too high or if it did start leaking then you needed to shutdown to repair it. So is the flow being split between the normal...
  10. LittleInch

    Piping Material Grade Query

    I'm glad you've got that fixed. That errrr arrangement is one of the strangest I've ever seen and I've been out to the FSU. So your 28" major barrel has a flanged end? So there is no flow through your new line when any pigging occurs?? I'm working on the basis here that this is flow out of...
  11. LittleInch

    WELL HEAD EQUIPMENTS & SUBSEA PRODUCT DESIGN

    You could do worse than have a look around the API website for standards, tutorials and books. https://www.api.org/products-and-services Many standards are available if you search for them but now out of date. Subsea everything gets harder and more expensive by a factor of 10.
  12. LittleInch

    API 650 titanium gr2 tank

    Also look at UL 142 and API 12F Or ask a few vendors. Many tanks are not actually designed to any specific code believe it or not. A lot depends on contents, design pressure, location and similar. But API 650 may give you what you need, but it may come out with some minimum thicknesses as it...
  13. LittleInch

    Axial Control Valve Sizing

    A few documents which might help.
  14. LittleInch

    Axial Control Valve Sizing

    I don't know. What I do know is that in my experience it's very difficult to find a valve trim that will do that sort of flow range. The internal valve design I leave to the vendor having given them whatI think are the min, normal, max flow cases and see what they can do.
  15. LittleInch

    WELL HEAD EQUIPMENTS & SUBSEA PRODUCT DESIGN

    Start with vendor sites and information like Cameron, FMC etc But that's a very wide spread so you might need to narrow it down a bit. Why are you looking at this.
  16. LittleInch

    Axial Control Valve Sizing

    If you want an analogy think of your valve like a petrol engined car with only one gear. You're concentrating on getting the design right to do 100mph. Your customer also wants it to be able to travel at 5mph. But you only have one fixed gear. The car will jump, stall and won't work very well...
  17. LittleInch

    Axial Control Valve Sizing

    Customer sounds line he doesn't know what he wants..... It's up to you to tell them that his process requirements can't be accomplished in one valve to any level of reliability or control.
  18. LittleInch

    Easy ways to explain how greywater reuse works?

    Pay back is simply reduction of cost due to lower waste consumption and lower associated sewage costs. Grey water is simply extending the use of what started as clean potable water for other use such flushing toikets or watering the garden. Pretty simple concept really. Instead of water going...
  19. LittleInch

    US REFINERIES CANNOT PROCESS LITE OIL

    Yes, pretty good. About to build a house this year so nearly pressing go. Scary stuff. The new site take s but if getting used to but works just the same and you can clear it all from new posts with just a couple of clicks. Not many use the DM feature or the other social media gumf. Glad it's...
  20. LittleInch

    API 650 titanium gr2 tank

    That's more like a large diameter pipe. API 650 isn't really designed for such small very tall "tanks" You might be better off with one of the other tank codes like silos or similar.

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