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  • Carbon steel to ASTM A 105.
  • SA 105 flanges can be supplied upon request.
  • Material of NPS 26 and up complies with ASTM A181 grades 1 and 2.
  • Flanges are: furnished, faced, drilled, spot faced or back faced.
Class 150 Flanges
Class 150 Flanges - 2
Unit of Measure
1 2 

Item #

Item Name

Nominal Pipe Size

Outside Diameter of Flange O

Minimum Thickness of Flange Q

Diameter of Raised Face R

9620 N/A 34 Inch (in) Nominal Pipe Size Class 150 Flange N/A 34 in N/A 43 3/4 in N/A 2 5/16 in N/A 37 3/4 in
9621 N/A 36 Inch (in) Nominal Pipe Size Class 150 Flange N/A 36 in N/A 46 in N/A 2 3/8 in N/A 40 1/4 in
9622 N/A 42 Inch (in) Nominal Pipe Size Class 150 Flange N/A 42 in N/A 53 in N/A 2 5/8 in N/A 47 in
Unit of Measure
1 2