In service welding.

Joss10 · May 25, 2019

To apply the recommendations in API 1104 - APP B - In service welding, it is mandatory that the fluid (oil, gas) must be flowing.
The problem we see is that applying welding on the outer surface without oil / gas fluid circulating inside the pipe, acting as a coolant / heat sink, could generate some type of fire / ignition / explosion inside the pipeline.
That is the reason we are looking for similar information and as warm as API 1104 - APP B, but without circulating fluid.
Any comment is grateful in advance.

mk3223 · May 25, 2019

As stated in the App.B, there is a concern of the burning through during the in-service welding. To maintain a flow in line is to reduce heat accumulated during welding, and to minimized the risk of burning through. On the other hand, it should avoid the high flow rate, so it won't be cooled too fast.

Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

In service welding.

Joss10

Mechanical

mk3223

Mechanical

Similar threads

Part and Inventory Search

Sponsor