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Forged Threaded Fittings

Threaded fittings are one of the oldest jointing methods used in piping systems. Similar to socket weld fittings, they are designed for small pipe diameters no more than NPS 2. Such threaded fittings are normally made in stainless steel or carbon steel. We can divide them into three pressure classes: 2000, 3000, and 6000. Forged threaded fittings are a kind of high pressure forged fittings widely used in low cost, noncritical applications like water&fire protection, industrial cooling water systems, ect. Currently, forged threaded fittings made in our company are 45° elbow, 90° elbow, tee, cross, half couplings, full couplings, ect. Below are the detailed dimension sheet for forged threaded fittings we have developed:


DN
Nom.
Pipe
Size
Center to End
Elbows.Tees.Cross
A
Center to End
45° Elbow
C
Outside Diameter
of Band
H
Minumum Wall
Thickness G
Length of 
Thread.
Min.(1)
2000 3000 6000 2000 3000 6000 2000 3000 6000 2000 3000 6000 B L2
6 1/8 21 21 25 17 17 19 22 22 25 3.18 3.18 6.35 6.4 6.7
8 1/4 21 25 28 17 19 22 22 25 33 3.18
 3.30 6.60 8.1 10.2
10 3/8 25 28 33 19 22 25 25 33 38 3.18
 3.51 6.98 9.1 10.4
15 1/2 28 33 38 22 25 28 33 38 46 3.18
 4.09 8.15 10.9 13.6
20 3/4 33 38 44 25 28 33 38 46 56 3.18
 4.32 8.53 12.7 13.9
25 1 38 44 51 28 33 35 46 56 62 3.68 4.98 9.93 14.7 17.3
32 1-1/4 44 51 60 33 35 43 56 62 75 3.89 5.28 10.59 17.0 18.0
40 1-1/2 51 60 64 35 43 44 62 75 84 4.01 5.56 11.07 17.8 18.4
50 2 60 64 83 43 44 52 75 86 102 4.27 7.14 12.09 19.0 19.2
65 2-1/2 76 83 95 52 52 64 92 102 121 5.61 7.65 15.29 23.6 28.9
85 3 86 95 106 64 64 79 109 121 146 5.99 8.84 16.64 25.9 30.5
100 4 106 114 114 79 79 79 146 152 152 6.55 11.18 18.67 27.7 33.0


DN
Nom.
Pipe 
Size
End to End
Couplings 
W
End to End
Caps
P
Outside 
Diameter 
D
End Wall 
Thickness 
G Min.
Length of 
Thread.
Min.(1)
3000&6000 3000 6000 3000 6000 3000 6000 B L2
6 1/8 32 19 ... 16 22 4.8 ... 6.4 6.7
8 1/4 35 25 27 19 25 4.8
 6.4 8.1 10.2
10 3/8 38 25 27 22 32 4.8
 6.4 9.1 10.4
15 1/2 48 32 33 28 38 6.4 7.9 10.9 13.6
20 3/4 51 37 38 35 44 6.4
 7.9 12.7 13.9
25 1 60 41 43 44 57 9.7 11.2 14.7 17.3
32 1-1/4 67 44 46 57 64 9.7
 11.2 17.0 18.0
40 1-1/2 79 44 48 64 76 11.2 12.7 17.8 18.4
50 2 86 48 51 76 92 12.7 15.7 19.0 19.2
65 2-1/2 92 60 64 92 108 15.7 19.0 23.6 28.9
80 3 108 65 68 108 127 19.0 22.4 25.9 30.5
100 4 121 68 75 140 159 22.4 28.4 27.7 33.0


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