Navigation Bar
300# | 600# | 900# | 1500# | 2500#

Table 1 Class 600 Orifice Flanges, Welding Neck, Slip-On, and Threaded (notes 3, 4)
Nominal Pipe Size Outside Diameter of Raised Face - R Outside Diameterof Flange - O Thickness of Flange, Min. - C Length Through Hub Height of Raised Face - H Ring Type Joint Diamter of Hub - X Hub Diameter at Beginning of Chamfer - A Bore - B Diameter of Pressure Connection - TT Drilling Template Diameter of Bolts Length of Stud Bolts [(4)(5)] Depth of Socket - L
Groove number Pitch Diameter - P Groove Depth - E Groove Width - F Radius at Bottom - rmax Special Oval Ring Height - W Bolt Circle Number of Holes Diameter of Holes Raised Face Ring Joint
Raised Face Ring Joint
1/2" 1.375 3.750 1.50 1.812 3.000 R11 0.84 0.93 0.622 1.562 0.78 0.88 See Note (7). - 1/8 2.625 4 0.625 1/2 4.50 5.00 - 1/2
3/4" 1.875 4.625 1.50 1.875 3.125 R13 1.05 1.14 1.00 1.500 0.71 1.09 - 1/8 3.250 4 0.75 5/8 4.50 5.00 - 1/2
1" 2.00 4.88 1.44 3.19 0.06 R16 2.000 0.250 0.344 0.03 1.00 2.12 1.32 1/4 3.50 4 0.69 0.75 5/8 5.00 5.50 1/2
1-1/2" 2.88 6.12 1.44 3.32 0.06 R20 2.688 0.250 0.344 0.03 1.00 2.75 1.90 1/4 4.50 4 0.81 0.88 3/4 5.25 5.50 5/8
2" 3.62 6.50 1.44 3.32 0.06 R23 3.250 0.312 0.469 0.03 1.06 3.31 2.38 1/4 5.00 8 0.69 0.75 5/8 5.00 5.50 1-1/16
2-1/2" 4.12 7.50 1.44 3.44 0.06 R26 4.000 0.312 0.469 0.03 1.06 3.94 2.88 1/4 5.88 8 0.81 0.88 3/4 5.25 5.75 3/4
3" 5.00 8.25 1.44 3.44 0.06 R31 4.875 0.312 0.469 0.03 1.06 4.62 3.50 3/8 6.62 8 0.81 0.88 3/4 5.25 5.75 13/16
4" 6.19 10.75 1.50 4.00 0.25 R37 5.875 0.312 0.469 0.03 1.06 6.00 4.50 1/2 8.50 8 1.00 1.00 7/8 6.00 6.50 15/16
6" 8.50 14.00 1.88 4.62 0.25 R45 8.312 0.312 0.469 0.03 1.06 8.75 6.63 1/2 11.50 12 1.12 1.12 1 7.00 7.50 -
8" 10.62 16.50 2.19 5.25 0.25 R49 10.625 0.312 0.469 0.03 1.06 10.75 8.63 1/2 13.75 12 1.25 1.25 1-1/8 7.75 8.25 -
10" 12.75 20.00 2.50 6.00 0.25 R53 12.750 0.312 0.469 0.03 1.06 13.50 10.75 1/2 17.00 16 1.38 1.38 1-1/4 8.75 9.25 -
12" 15.00 22.00 2.62 6.12 0.25 R57 15.000 0.312 0.469 0.03 1.06 15.75 12.75 1/2 19.25 20 1.38 1.38 1-1/4 9.00 9.50 -
14" 16.25 23.75 2.75 6.50 0.25 R61 16.500 0.312 0.469 0.03 1.06 17.00 14.00 1/2 20.75 20 1.50 1.50 1-3/8 9.50 10.00 -
16" 18.50 27.00 3.00 7.00 0.25 R65 18.500 0.312 0.469 0.03 1.19 19.50 16.00 1/2 23.75 20 1.62 1.62 1-1/2 10.25 10.75 -
18" 21.00 29.25 3.25 7.25 0.25 R69 21.000 0.312 0.469 0.03 1.19 21.50 18.00 1/2 25.75 20 1.62 1.62 1-5/8 11.00 11.50 -
20" 23.00 32.00 3.50 7.50 0.25 R73 23.000 0.375 0.531 0.06 1.25 24.00 20.00 1/2 28.50 24 1.75 1.75 1-5/8 11.75 12.50 -
24" 27.25 37.00 4.00 8.00 0.25 R77 27.250 0.438 0.656 0.06 1.44 28.25 24.00 1/2 33.00 24 2.00 2.00 1-7/8 13.25 13.75 -

Notes:

  1. Other NPT sizes may be furnished if required.
  2. Weld neck flanges NPS 3 and smaller are identical to Class 300 flanges and may be so marked.
  3. All other dimensions are in accordance with ASME B16.5.
  4. Bolt lengths include allowance for orifice and gasket thickness of 0.25 in. for NPS 1 - 12 and 0.38 in. for NPS 14 - 24. Bolt lengths for ring type joint flanges include allowance of 0.62 in. for NPS 1 - 10, 0.75 in. for NPS 12 - 18, and 0.88 in. for NP@ 20.
  5. In conformance with ASME B16.5, stud bolt lengths do not include point heights.
  6. Bore is to be specified by the purchaser.
  7. Ring joint flange in NPS 24 will require an angular meter tap as shown in Fig. 3.
300# | 600# | 900# | 1500# | 2500#