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...
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.
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.
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...
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...
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.
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...
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...
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Many standards are available if you search for them but now out of date.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.
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...
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.
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.
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...
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.
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...
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...
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.