BULKHEAD UNION
DBU
| TUBE (METRIC) TO TUBE (METRIC) | ||||||||||
| PART NUMBER | A TUBE O.D. | D | W HEX FLAT | N | N1 | L | L1 | I | PANEL HOLE DRILL SIZE | MAX PANEL THICKNESS |
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | |
| DBU – 3M | 3 | 2.4 | 14 | 38.1 | 24.6 | 51.3 | 31.2 | 12.9 | 8.3 | 12.7 |
| DBU – 4M | 4 | 2.4 | 14 | 40.4 | 25.4 | 53.6 | 32.0 | 13.7 | 9.9 | 12.7 |
| DBU – 6M | 6 | 4.8 | 16 | 42.9 | 26.2 | 57.7 | 33.6 | 15.3 | 11.5 | 10.2 |
| DBU – 8M | 8 | 6.4 | 18 | 46 | 28.6 | 61.0 | 36.1 | 16.2 | 13.1 | 11.2 |
| DBU – 10M | 10 | 7.9 | 22 | 48.5 | 29.4 | 63.7 | 37.0 | 17.2 | 16.25 | 11.2 |
| DBU – 12M | 12 | 9.5 | 24 | 50.8 | 31.8 | 71.0 | 41.9 | 22.8 | 19.5 | 12.7 |
| DBU – 15M | 15 | 11.9 | 27 | 52.3 | 32.5 | 72.5 | 42.6 | 24.4 | 22.8 | 12.7 |
| DBU – 16M | 16 | 12.7 | 27 | 52.3 | 32.5 | 72.5 | 42.6 | 24.4 | 22.8 | 12.7 |
| DBU – 18M | 18 | 15.1 | 30 | 58.7 | 37.3 | 78.9 | 47.4 | 24.4 | 26.0 | 16.8 |
| DBU – 20M | 20 | 15.9 | 35 | 64.3 | 42.9 | 84.5 | 53.0 | 26.0 | 29.0 | 23.9 |
| DBU – 22M | 22 | 18.3 | 35 | 64.3 | 42.9 | 84.5 | 53.0 | 26.0 | 29.0 | 19.1 |
| DBU – 25M | 25 | 21.8 | 41 | 71.4 | 45.2 | 95.9 | 57.5 | 31.3 | 33.7 | 19.0 |
| DBU – 32M | 32 | 28.6 | 50 | 82.3 | 49.5 | 128.3 | 72.5 | 42.0 | 42.5 | 19.0 |
| DBU – 38M | 38 | 33.7 | 60 | 89.4 | 51.5 | 144.6 | 79.1 | 49.4 | 50.5 | 19.0 |
| TUBE (INCH) TO TUBE (INCH) | ||||||||||||||||||||
| PART NUMBER | A TUBE O.D. | D | W HEX FLAT | N | N1 | L | L1 | I | PANEL HOLE DRILL SIZE | MAX PANEL THICKNESS | ||||||||||
| in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | |
| DBU – 1 | 1/16 | 1.58 | 0.05 | 1.27 | 5/16 | 7.9 | 0.94 | 23.88 | 0.53 | 13.46 | 1.24 | 31.5 | 0.68 | 17.3 | 0.34 | 8.6 | 13/64 | 5.16 | 0.12 | 3.05 |
| DBU – 2 | 1/8 | 3.17 | 0.09 | 2.28 | 1/2 | 12.7 | 1.5 | 38.1 | 0.97 | 24.63 | 2.02 | 51.3 | 1.23 | 31.24 | 0.5 | 12.7 | 21/64 | 8.33 | 0.5 | 12.7 |
| DBU – 3 | 3/16 | 4.76 | 0.12 | 3.04 | 9/16 | 14.3 | 1.59 | 40.38 | 1 | 25.4 | 2.11 | 53.59 | 1.26 | 32 | 0.54 | 13.7 | 25/64 | 9.92 | 0.5 | 12.7 |
| DBU – 4 | 1/4 | 6.35 | 0.19 | 4.82 | 5/8 | 15.9 | 1.69 | 42.92 | 1.03 | 26.16 | 2.27 | 57.65 | 1.32 | 33.52 | 0.6 | 15.3 | 29/64 | 11.5 | 0.4 | 10.16 |
| DBU – 5 | 5/16 | 7.93 | 0.25 | 6.35 | 11/16 | 17.5 | 1.81 | 45.97 | 1.12 | 28.44 | 2.39 | 60.7 | 1.41 | 35.81 | 0.64 | 16.2 | 33/64 | 13.09 | 0.44 | 11.17 |
| DBU – 6 | 3/8 | 9.52 | 0.28 | 7.11 | 3/4 | 19.1 | 1.87 | 47.5 | 1.16 | 29.46 | 2.45 | 62.2 | 1.45 | 36.83 | 0.66 | 16.9 | 37/64 | 14.68 | 0.44 | 11.17 |
| DBU – 8 | 1/2 | 12.7 | 0.41 | 10.41 | 15/16 | 23.8 | 2 | 50.2 | 1.25 | 31.75 | 2.8 | 71.12 | 1.65 | 41.91 | 0.9 | 22.9 | 49/64 | 19.44 | 0.5 | 12.7 |
| DBU – 10 | 5/8 | 15.87 | 0.5 | 12.7 | 1-1/16 | 27 | 2.06 | 52.32 | 1.28 | 32.51 | 2.86 | 72.64 | 1.68 | 42.67 | 0.96 | 24.4 | 57/64 | 22.62 | 0.5 | 12.7 |
| DBU – 12 | 3/4 | 19.05 | 0.62 | 15.9 | 1-3/16 | 30.2 | 2.31 | 58.67 | 1.47 | 37.33 | 3.11 | 78.99 | 1.87 | 47.49 | 0.96 | 24.5 | 1-1/64 | 25.79 | 0.66 | 16.76 |
| DBU – 16 | 1 | 25.4 | 0.88 | 22.35 | 1-5/8 | 41.3 | 2.81 | 71.37 | 1.78 | 45.21 | 3.77 | 95.76 | 2.26 | 57.4 | 1.23 | 31.2 | 1-21/64 | 33.73 | 0.75 | 19.05 |
| DBU – 20 | 1-1/4 | 31.75 | 1.09 | 27.7 | 1-7/8 | 47.6 | 3.11 | 79 | 1.88 | 47.75 | 4.85 | 123.19 | 2.75 | 69.85 | 1.62 | 41.2 | 1-41/64 | 41.67 | 0.75 | 19.05 |
| DBU – 24 | 1-1/2 | 38.1 | 1.34 | 34 | 2-1/4 | 57.2 | 3.34 | 84.8 | 1.94 | 49.28 | 5.48 | 139.19 | 3.01 | 76.45 | 1.97 | 50 | 1-61/64 | 49.61 | 0.75 | 19.05 |
| DBU – 32 | 2 | 50.8 | 1.81 | 45.97 | 2-3/4 | 69.9 | 4.16 | 105.66 | 2.22 | 56.39 | 7.1 | 180.34 | 3.69 | 93.73 | 2.66 | 67.6 | 2-41/64 | 67.07 | 0.75 | 19.05 |
“D” – Dimension is minimum opening – dimensions are for reference only, and are subject to change without notice.