[saqib]

Is there any code or standard or any other technical reference for this?

[saqib]

So I conclude that there is no hard and fast rule for using stubs. It will depend only on ones good engineering Practices (When & where it is suitable) and also up to some extent of Cost difference.

Thank you Mark for your guidence.

[saqib]

Thank you JOP for your attention.

In fact I am not talking about any particular case. Actually on plant piping I always prefer Tees regardless pipe size and branch sizes because on plant there is always high pressure and high temperature.
But for piping design Out side battery limits of plant, I normally use Tees for small pipe sizes up to 2″ dia because fabrication of stub is difficult for small pipes. But for larger diameter pipes I use stubs. Say from 4″ dia pipe I will take connection of 2″ by stub OR from 4″ dia pipe I will take connection of 4″ (same size). Temperature and pressure are not too much high out side the plant. Approx 110-150 Psi pressure & 60-80C temp.

So, that’s why some times I get confusion, either I should use Tee or Stub in these cases. Because, I have not found any literature about these things yet.

If you can guide me I will really appreciate you.

[saqib]

Mr. JOP…! Thanks alot for your guidence.

Can you kindly tell me that both these words WPB & WCB has any abbreviation or they are just alphabet assigned to these standards?

[saqib]

Can u provide me your e-mail? I will send you some related documents as attachments.

[Author]

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