Only if you have a lot of money. Why buy pipe thicker than you need to?
Yes LittleInch
Your ans is justifiable. Nobody would buy higher thks unnecessarily. But there is another aspect where you need to keep the inventry as trimmed as possible else that are lot more challenges in store.
A pipe...
I guess what you want to draw from the Line List is the 'Piping Class', where pipings are grouped by service and P/T range
Yes GD2
The line list I posted at the start of the thread is for the service categorised as "D category" fluids. These have the PT range suitable for 150# class. I've just...
In the line list, different lines see different design conditions. For CS moc alone design temp below 650Deg F there are over 100 entries for different pipe sizes. It's certain that the condition giving the highest wall thk will be the worst condition. But there should be a method wherein we can...
Hi LittleInch
You said-So what's the point of specifying the design pressure if you're not going to use it??
Are you assuming that Thk calc here, is being considered without the design parameters?
As per the method we start with a random wall thk and go on reducing it. This is done till the...
Hi GD2
You said - the condition governing the component rating (example flanges, valves etc) may differ to the design condition for the pipe.
By this do you mean I should back calculate the MAWP using the Allowable stress values from ASME B31.3 Table A-1 - For all components like Pipe, flange...
Hi XL83NL, I agree with you. I had come across a PT calculation excel sheet at my workplace.
In there we can assign any random thk to the entire size range of CS pipes falling in the project
Say...
1/2" to 1 1/2" 80SCH
2" to 8" 40SCH
10" to 24" 20sch
above 24" as per line operating conditions...
Hi, I have a Piping line list with various design conditions. Say, For carbon steel material 150#, 10"pipe, there are various pressure and temperatures. Should I calculate the pipe wall thk for each condition as per ASME B31.3. Or is there a shorter way? How to arrive at the most most critical...
