RF is d type f end connection.ie.Raised face.125 is pressure class.AARH is the arithmatic average surface roughness.
On Jan 31, 2014 11:44 AM, "smkabeer ahamed" <sm_kabeerahamed@yahoo.co.in> wrote:
-- --Dear sirs,1.At one purchase order I found FLANGE 6 IN,CLASS BIA,THICKNESS-M#B-16.5 ,MATERIAL A105,300,RF /125 AARH,WN.RF/125 AARH Means what?2.PIPE 10 IN,CLASS-B1A,THICK-STD B-36.1,MATERIAL-ASTM A106 GR B,BE SEAMLESS,CORBON STEEL,I Am not having the above standard can any one tell what is the thickness of the pipe and which page it has given in standard.Thanking you,S.M.Kabeer ahamedQUEST-KALKATA
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