Flat Face Blind Flange (FFBL/BLFF), also referred in the Standard as Type 05/A
All sharp edges have been chamfered by 0.5 mm at 45°
(*) To determine the flange spec, please refer to the end of the code as shown in between stars (SBF25*PN10-40*). Please note, stars are for visual purposes of this example only.
Please note, that some old stock is forged to ASTM A182 (F316L), new incoming stock will be forged to EN10222-5 (1.4404). Refer to the grade to determine this
All sharp edges have been chamfered by 0.5 mm at 45°
(*) Please note that sizes 15NB (1/2") to 40NB (1 1/2") do not meet AS2129 thickness. The thickness has been increased to avoid unacceptable warpage that can occur at standard thickness, as recommended in the standard. These flanges will be denoted as "NON STANDARD".
All sharp edges have been chamfered by 0.5 mm at 45°
(*) Please note that sizes 15NB (1/2") to 65NB (2 1/2") do not meet AS2129 thickness. The thickness has been increased to avoid unacceptable warpage that can occur at standard thickness, as recommended in the standard. These flanges will be denoted as "NON STANDARD".
All sharp edges have been chamfered by 0.5 mm at 45°
(*) Please note that some older stock is Flat Faced, and does not meet Standard thickness. Refer to items missing 'E' measurement. New stock will replace this, and will be Raised Face and meet Standard thickness
