[zahra]

Hi
I have studied the TDW method as much as they described it in their web site .
also there will be a committe of profesional engineer which will consider my procedure before execution.
meanwhile I want to find my flaws.
what is the diffrence between my idea and what TDW will or other qualified companies do???
please correct my about weakpoints of my desing.

PS: In iran all the hot tap operation will be done by national iranian oil company and no forign company can be involved.
and they have highly qualified team.
but i am not sure about their method.

highly appreciated your reply

[zahra]

Hi
could you please tell me that wheather the split tee is a pressure retaining part or it is just as a reinforcment ??

I had pland to weld a piece of 20″ pipe on 30″ header and then as a reinforcment fabricate a full or half saddel around header.
in this way the saddle is not a pressure retaining part and there is no need to have a circomfrencial weld.
two part of full saddel will be join together with two joining bar.
then weld a flange to 20″ pipe and and then 20″ full bore ball valve.
could anybody tell me if this is a practical design or not.

highly appreciated your reply

[Author]

Posts