API 1104 vs. ASME Section 9
API 1104 vs. ASME Section 9
(OP)
On a crude oil pipeline station, when does API 1104 apply and when does ASME Section 9? On Welding Procedures, I am hearing two versions:
1) API 1104, till after the first above-gound flange, then ASME Section 9; versus,
2) API 1104 throughout ..."a pipeline is a pipeline"
1) API 1104, till after the first above-gound flange, then ASME Section 9; versus,
2) API 1104 throughout ..."a pipeline is a pipeline"





RE: API 1104 vs. ASME Section 9
Look to the "Scope" section of ASME B31.4 & .8 to see where a pipeline starts and stops. You will see that "Pipelines" also include pump and compressor stations. Wether a flange is above or below ground makes no difference
http://virtualpipeline.spaces.msn.com
RE: API 1104 vs. ASME Section 9
BigInch is correct, for entry to gas plant/production facility, typically the spec break will be at the flange of the side valve on the pig trap.
Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: API 1104 vs. ASME Section 9
Drawings should dictate where the spec change should be made.
you should not start to worry about section IX until you reach a processing facility or some form of packaged equipment piping.
RE: API 1104 vs. ASME Section 9
it occured to me that you might be creating the drawing.
sorry, i'm on the construction end of the oilfield, so i'm used to drawings being completed long before i get involved :)
RE: API 1104 vs. ASME Section 9
RE: API 1104 vs. ASME Section 9
http://virtualpipeline.spaces.msn.com
RE: API 1104 vs. ASME Section 9
Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com
RE: API 1104 vs. ASME Section 9
beautifully stated!!
RE: API 1104 vs. ASME Section 9
State jurisdictions may impose further restrictions and may limit qualification to API 1104 only. For gas piping, Arizona mandates qualification per API 1104 both outside and inside of the plant; in power plants, B31.1 does not apply to the fuel gas lines.