Barred Tees Design
Barred Tees Design
(OP)
I am currently working on a barred tee design for a manifold piping system. The tee was originally designed with only one bar, and a concern was brought up that it should have a minimum of 2. I looked through ASME B16.9, but it didn't mention the required number of bars. Is there a standard as to how many bars are required based on the size of the tee?
TEE INFORMATION
Size: 6.625" OD x 6.625" OD x 1.042" WT
Material: ASTM A694 Gr. F65
Use: Subsea Manifold piping system
Many thanks in advance.
Cheers,
Kat
TEE INFORMATION
Size: 6.625" OD x 6.625" OD x 1.042" WT
Material: ASTM A694 Gr. F65
Use: Subsea Manifold piping system
Many thanks in advance.
Cheers,
Kat





RE: Barred Tees Design
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RE: Barred Tees Design
RE: Barred Tees Design
It is not covered by a Code. The Codes generally only address structural integrity and internal pressure. The bars are purely a function of operation and what is available from the manufacturers. The makers of barred Tees consider the ID of the run pipe and simply try to provide the "bridging effect" required to pass the pig along its merry wy with little or no drama. As long as there are sufficient bars to prevent the pig from getting hung up at the Tee, it is OK. I guess you have to consider the physical characteristics (size, shape, appurtenances, etc.) of the various pigs that might pass through the system.
Regards, John.
RE: Barred Tees Design
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Barred Tees Design
RE: Barred Tees Design
Steve Jones
Materials & Corrosion Engineer
http://www.pdo.co.om/pdo/