Face finish: The finish on the face of flange is measured as an Arithmetical Average Roughness Height(AARH). The finish is determined by the standard used. For example, ANSI B16.5 specifies face finishes within a range 125AARH-500AARH(3.2Ra to 12.5Ra). Other...
125-250 AARH(it is called smooth finish) 250-500 AARH(it is called stock finish) CoatingVanish, yellow paint, anti-rust oil, galvanizing etc Threaded Flange Material Grades: Carbon SteelASTM /ASME A/SA105(N), A350 LF2/LF3, A694 F52, F56, F60, F65, F70 ...
Roughness values are usually indicated on the flange e.g. an abbreviated roughness value may be indicated as ‘125-250 AARH’ or ‘3.2 to 6.3 AARH’.Flange Types, Faces, and Surfaces - Explained!This video is part of our Piping Flange Fundamentals Video Course...
Face finish: The finish on the face of flange is measured as an Arithmetical Average Roughness Height(AARH). The finish is determined by the standard used. For example, ANSI B16.5 specifies face finishes within a range 125AARH-500AARH(3.2Ra to 12.5Ra). Other finishes are availab...
Flange Face Finish 125-250 AARH(it is called smooth finish) 250-500 AARH(it is called stock finish) Coating Vanish, yellow paint, anti-rust oil, galvanizing etc Material Alloy Steel ASTM/ASME A/SA350 LF2 ASTM/ASME A/SA694 F52, F56 F60, F65, F70 ASTM/ASME A/SA182 GR F5,F9, F11,...
Spiral Serrated: 125 to 250 AARH: This finish is produced with a continuous spiral groove but utilizes a 90° included angle “V” tool. The groove is 1/64” deep and the feed is 1/32” for all sizes. 3. Concentric Serrated: 125 to 250 AARH: This finish is produced with concentric...
125-250 AARH(it is called smooth finish) 250-500 AARH(it is called stock finish) CoatingVanish, yellow paint, anti-rust oil, galvanizing etc Blind Flange Material Grades: Carbon SteelASTM /ASME A/SA105(N), A350 LF2/LF3, A694 F52, F56, F60, F65, F70 ...
Face finish: The finish on the face of flange is measured as an Arithmetical Average Roughness Height(AARH). The finish is determined by the standard used. For example, ANSI B16.5 specifies face finishes within a range 125AARH-500AARH(3.2Ra to 12.5Ra). Other fin...
125-250AARH(it is calledsmooth finish) is specified for Spiral Wound Gaskets. 250-500AARH(it is calledstock finish) is specified for soft gaskets such as NON Asbestos, Graphite sheets, Elastomers etc. If we usesmooth finishfor soft gaskets enough "biting effect" will not occur and hence the...
The finish is determined by the standard used. For example, ANSI B16.5 specifies face finishes within a range 125AARH-500AARH(3.2Ra to 12.5Ra). Other finishes are available on requst, for example 1.6 Ra max,1.6/3.2 Ra, 3.2/6.3Ra or 6.3/12.5Ra. The range 3.2/6.3Ra...