Specify the Tee to be fabricated with the same ID as the pipe. Thickness of pipe and tee will not need to be the same as different design method and materials are used.
Check out the tests for valves.
API Specification 6D, January 2002
ISO 14313:1999,
See Annex C
And ISO 5208, Industrial valves—Pressure testing of valves.
Also see API 598
Table 5 Maximum Allowable Leakage Rates for Closure Tests
a) For the liquid test, 1 millimeter is considered equivalent to...
Guys,
Thanks for your valuable inputs, but it would seem that either there isn't a flange set that I'm looking for, or we haven't found it.
It doesn't matter as I have found a way of leak testing the flanged spool, blocked of upstream and downstream - two small tees/taps u/s and d/s of the...
We're now diverging from the original query, and this could be a new topic. Codes and standards.
My observation is that it is the country law/regulation that determines which code or standard to be followed.
In US it is really Code of Federal regulations, which are similar to ASME. In other...
Steve Jones is correct.
I checked what we designed a few years ago for onshore pipelines.
The data sheet says: Scraper Design Code, (To be suitable for Scraper and Intelligent Tooling.): ASME B31.8 with a design factor of 0.6 for all aspects of the launcher/ receiver design except quick opening...
I thought I had read, but maybe wrong, about a flange that could be tested for leaks externally, to avoid internal hydrotest.
Is there such a flange? If yes, who makes it?
Cheers,
Shiv