26" ASME B16.47 Flange
26" ASME B16.47 Flange
(OP)
Can anyone tell me what is the difference between B16.5 & B16.47? Is there a dimensional change.
Also, does anyone know where I can find a listing of large ASME flanges (>24") ?
Also, does anyone know where I can find a listing of large ASME flanges (>24") ?





RE: 26" ASME B16.47 Flange
Try http://www.welding-units.co.uk/dld/dld.htm
They have free flange data software.
pipingdesigner
www.pipingdesigners.com
RE: 26" ASME B16.47 Flange
The B16.47 standard has two series, 'A' and 'B', which incorporate the MSS SP-44 dimensions (series'A'), and the the API-605 dimensions (series'B'). They are not interchangeable! The weight of series'B' flange could be less than half the weight of series'A'. The MSS SP-44 (series'A') bolt circles are compatible to the B16.1 bolting patterns for cast iron flanges. The API-605 (series'B') bolting patterns have smaller bolts, smaller bolt circles with more bolts. Few if any valves are made with series'B' flange patterns.
see supplier / distributor website for flange dimension data
www.tiogapipe.com
www.texasflange.com
www.mcjunkin.com
Many offshore flange manufacturers also include dimensional data.
RE: 26" ASME B16.47 Flange
22" NPS is not covered by B16.5, for this size use MSS-SP-44.
NozzleTwister
Houston, Texas
RE: 26" ASME B16.47 Flange