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Unit of Measure

Nominal Pipe Size

 N/A 14 inches

Outside Diameter - D

 N/A 23.00 inches

Thickness - t

 N/A 2.12 inches

O.D. of Raised Face - G

 N/A 16.25 inches

Diameter at Base of Hub - X

 N/A 16.75 inches

Bore - B1

 N/A 13.25 inches

Bore - B2

 N/A 14.14 inches

Length Thru Hub - T2

 N/A 3.00 inches

Depth of Socket - Y

 N/A 1.63 inches

Bolt Circle Diameter

 N/A 20.25 inches

Number of Holes

 N/A 20

Diameter of Holes

 N/A 1.25 inches

Diameter of Bolts

 N/A 1 1/8 inches

Machine Bolt Length (Raised Face)

 N/A 6.25 inches

Stud Bolt Length (Raised Face)

 N/A 7.00 inches

Stud Bolt Length (Ring Joint)

 N/A 7.50 inches

N/A

  • Class 300 flanges except Lap Joint will be furnished with 0.06" raised face, which is included in 'Thickness' (t) and 'Length through Hub' (T1), (T2).
  • For Slip-on, Threaded, Socket Welding and Lap Joint Flanges, the hubs can be shaped either vertical from base to top or tapered within the limits of 7 degrees
  • Blind Flanges may be made with the same hub as that used for Slip-On Flanges or without hub.
  • The gasket surface and backside (bearing surface for bolting) are made parallel within 1 degree. To accomplish parallelism, spot facing is carried out according to MSS SP-9, without reducing thickness (t).
  • Depth of Socket (Y) is covered by ANSI B16.5 only in sizes through 3 inch, over 3" is at the manufacturer's option.