Full coupling ,half coupling,reducing coupling and cap Threaded Threaded Class 3000-1/4 (DN6) to 4 (DN100) Class 6000-1/4 (DN6) to 4 (DN100) Specification: ASME B16.11 ASME B1.20.1 (NPT) Threaded DN Nom.pipe size W P D G B L2 3000&60003000 6000300060003000 6000 6 1/8" 32 19 16 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