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Threaded Couplet
Nominal Pipe Size Outside Diameter Couplet, E Weld Ring Length, Q Wled Ring Diameter, N Minimum Length of Thread [Note (1)]
3000 6000 Tol ± 3000/6000 Tol ± 3000/6000 Tol ± 3000/600
B L2
1/8 6.4 6.7
1/4 23.8 25.4 ±1.5/-0.0 9.5 0.8 17.5 ±1.5/-0.0 8.1 10.2
3/8 27.0 31.8 ±1.5/-0.0 9.5 0.8 20.7 t1.5/-0.0 9.1 10.4
1/2 33.4 38.1 ±1.S/-0.0 9.5 0.8 23.8 ±1.5/-0.0 10.9 13.6
3/4 38.1 44.5 ±1.5/-0.0 9.5 0.8 27.0 ±1.5/-0.0 12.7 13.9
1 46.1 57.2 ±1.5/-0.0 9.5 0.8 33.4 ±1.5/-0.0 14.7 17.3
114 55.6 63.5 ±1.5/-0.0 9.5 0.8 42.9 t1.5/-0.0 17.0 18.4
11/2 63.5 76.2 ±1.5/-0.0 9.5 0.8 49.2 ±1.5/-0.0 17.8 18.4
2 79.4 79.4 ±1.5/-0.0 9.5 0.8 61.9 ±1.5/-0.0 19.0 19.2
21/2 92.1 92.1 ±1.5/-0.0 9.5 0.8 73.0 ±1.5/-0.0 23.6 28.9
3 111.1 111.1 ±1.5/-0.0 9.5 0.8 114.3 ±1.5/-0.0 25.9 30.5
4 141.3 141.3 ±1.5/-0.0 9.5 0.8 114.3 ±1.5/-0.0 27.7 33.0