[easy-e]

I understand Jop’s point of view, better safe than sorry. However in low pressure systems the use of half couplings is common in paper and pulp industry for threaded connections off of main headers and the use of “stab ins” for welded. Cost factors and speed of construction seem to govern these applications. On high pressure systems I would defer to Jop’s guidance.

[easy-e]

I understand Jop’s point of view, better safe than sorry. However in low pressure systems the use of half couplings is common in paper and pulp industry for threaded connections off of main headers and the use of “stab ins” for welded. Cost factors and speed of construction seem to govern these applications. On high pressure systems I would defer to Jop’s guidance.

[easy-e]

This should be required reading for all pipers and managers. Very well written from someone who has worked in the trenches.

[easy-e]

This should be required reading for all pipers and managers. Very well written from someone who has worked in the trenches.

[easy-e]

gpsvn,

Check out this link. http://www.red-bag.com/ Look under the Library section / design guides and then click the link for heat exchangers. It is a broad overview but it should get you started.

Also look in the training section.
Jop wrote:
[i]Exchangers, Shell and Tube
Shell and tube exchangers should be grouped together wherever possible. Stacked shell and tube exchangers should be limited to four shells high in similar service; however, the top exchanger should not exceed a centerline elevation of 18 feet (5.5m) above high point of finished surface, unless mounted in a structure. Keep channel end and shell covers clear of obstructions such as piping and structural members to allow unbolting of exchanger flanges, and removal of heads and tube bundles.
Exchangers with removable tube bundles should have maintenance clearance equal to the bundle length plus 5 feet (1.5m) measured from the tube sheet to allow for the tube bundle and the tube puller.
Maintenance space between flanges of exchangers or other equipment arranged in pairs should be 1′- 6″ (0.5m) (min.). Exchanger maintenance space from a structural member or pipe should not be less than 1′- 0″ (300mm) (min.).[/i]

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Well said JOP, lest we forget, that it wasn’t long ago (well for some of us it was) that we were all just getting our collective feet wet in this industry, with little or no formal programs offered for our field. Mainly through the mentorship of experienced designers and engineers such as JOP have we been able to carve out a niche in the workforce. Let’s show the same unselfishness and understanding our mentors have shown us to all who need help.

[easy-e]

Check out this website: http://plantspec.thomasnet.com/plantspe … a3ca5b2dc8

Or if you are looking for more generic information look here https://www.pipingdesigners.com/wp//download … eldata.zip

[easy-e]

[i]Hi Jop/Anton

I meant all of them.

Thanks[/i]

Keep in mind that you may have to devolop your own blocks as well depending on your industry. As Jop has stated you should be a little more specfic. Maybe let us know what type of industry you are making P&ID’s for.

[easy-e]

For which purpose???

You seem to be asking a very broad question. That is why I stated before that your process engineer should be able to tell you which base material you should use for a specific application.

But maybe the following will help.

The selection of the material to be used for each system is based on an evaluation on the following factors:
1. Requirements and limitations of the building and piping codes
2. The fluid in the pipe
3. The pressure and temperature of the fluid in the pipe
4. The location and external environment of the pipe
5. Availability of the material
6. The expected life of the facility where the system is to be installed
7. The installed cost of the system

The first four factors relate to safety and are of primary importance. The last three are related to the economics of the project and are weighed to suit.

The above was an excerpt from “PIPING HANDBOOK” sixth edition (great resource by the way)

So if you know the pipe codes & standards as you stated, you then should be able to apply that knowledge to the above factors and determine your base material. Or am I missing your point completely?

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Hossein,

Take a look at piping codes & standards under the Standards section. https://www.pipingdesigners.com/wp//Codes%20 … 0lists.htm

That should be a good starting point. If you are looking for a specific application perhaps you should ask your process engineer or you can post it here, if it is fyi.

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Anton,
How about a generic spec xls form from which users can submit spec info. I am sure there is a ton of different ways that specs are written. This way info can be sorted and extracted in a more organized manner.

I will be willing to help in any way that I can.

easy-e

[easy-e]

Red Hat has updated their website and added more sections to the design guide

[easy-e]

Pick up this resource:
http://www.pipefitter.com/NAVCO.html

It is the NAVCO Piping Datalog. Mine is pretty old but the info on pp. 17-21 should be the same. I think you are looking for wall thickness calculations and working pressures for pipe. You will find out the formulas for both the ANSI piping code (B31.1) and the ASME Boilder code, section 1. I hope this helps

[easy-e]

One more quick link found in this forum which should lead you in the right direction.

https://pipingdesigners.com/wp//phpBB/viewtopic.php?t=30

[easy-e]

No problem, glad I could help

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