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Forged Fitting >> Union

Nominal
Diameter
Outside Diameter Wall Thickness

Socket

Bore

Water way

Bore

Depth of

Socket

Length

Assem

Nominal

Dmin Cmin d1 d2 Jmin L
DN

NPS

(inches)

Socket Threaded Socket Threaded Socket

Socket &

Threaded

Socket

Socket &

Threaded

6 1/8 21.8 14.7 3.2 2.5 10.65 6.43 10 41.4
8 1/4 21.8 19 3.3 3.1 14.1 9.45 10 41.4
10 3/8 25.9 22.9 3.5 3.2 17.55 13.51 10 46
15 1/2 31.2 27.7 4.1 3.8 21.7 17.07 10 49
20 3/4 37.1 33.5 4.3 4 27.05 21.39 13 56.9
25 1 45.5 41.4 5 4.6 33.8 27.74 13 62
32 11/4 54.9 50.5 5.3 4.9 42.55 35.36 13 71.1
40 11/2 61.5 57.2 5.6 5.1 48.65 41.2 13 76.5
50 2 75.2 70.1 6.1 5.6 61.1 52.12 16 86.1
65 21/2 91.7 85.3 7.7 7.1 73.8 64.31 16 102.4
80 3 109.2 102.4 8.4 7.7 89.8 77.27 16 109

 



1/8" to 3" class 3000 & 1/2" to 2" class 6000

Class 3000

Inches 1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2 2 1/2 3
A 1 11/16 1 11/16 1 27/32 2 2  5/16 2  7/16 2 7/8 3 3 1/2 4 1/2 4  7/16
B 1 31/64 1 31/64 1 11/16 1 15/16 2 3/8 2 25/32 3 23/64 3 23/32 4 27/64 5 15/64 6  5/32
C 53/64 53/64 1 1  3/16 1 15/32 1 25/32 2  7/32 2 35/64 3  1/16 3  9/16 4  9/32
D 25/32 25/32 31/32 1  3/32 1  5/32 1 3/8 1 45/64 1 7/8 2  1/16 2 3/8 2  7/16
E 7/16 7/16 7/16 7/16 9/16 9/16 9/16 9/16 11/16 7/8 1
F 0.42 0.555 0.69 0.855 1.065 1.33 1.675 1.915 2.406 2.906 3.535
  0.43 0.565 0.7 0.865 1.075 1.34 1.685 1.925 2.416 2.921 3.55
 
Class 6000 Inches 1/8 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2  
A 1 11/15 1 27/32 2 2  5/16 2  7/16 2 7/8 3 3 1/2 4 1/8
B 1 31/64 1 11/16 1 15/16 2 3/8 2 25/32 3 23/64 3 23/32 4 27/64 5 15/64
C 53/64 1 1  3/16 1 15/32 1 25/32 2  7/32 2 35/64 3  1/16 3  9/16
D 25/32 31/32 1  3/32 1  5/32 1 3/8 1 45/64 1 7/8 2  1/16 2 3/8
E 7/16 7/16 7/16 9/16 9/16 9/16 9/16 11/16 7/8
F 0.42 0.555 0.69 0.855 1.065 1.33 1.675 1.915 2.406
  0.43 0.565 0.7 0.865 1.075 1.34 1.685 1.925 2.416

Note:
"C" dimension is across octagon corners or a diameter as applicable.The 2.1/2" and 3" 3000LB and 2" 6000LB sizes have octagonal male and female ends; the other sizes are round.