Union Couplings
| Nom. pipe Size | Pipe End Min. | Socket Bore Dia. (Max-min) | Socket Wall Min. | Water Way Bore (Max-min) | Laying Length (Max-min) | Male Flange Min. | Nut Min. | Thrds. per 25.4 mm | Bearing Min. | Depth of Scoket Min. | Lenght Assem. Nom. | Clear Assem. Nut |
| A | B | C | D | E | F | G | H | J | K | L | N | |
| 1/8" | 21.8 | 10.92-10.67 | 3.17 | 6.83-6.43 | 22.4-19.0 | 3.17 | 3.17 | 16 | 1.24 | 9.6 | 41.4 | 49.0 |
| 1/4" | 21.8 | 14.22-13.97 | 3.30 | 9.85-9.45 | 22.4-19.0 | 3.17 | 3.17 | 16 | 1.24 | 9.6 | 41.74 | 49.0 |
| 3/8" | 25.9 | 17.78-17.53 | 3.48 | 13.92-13.51 | 26.9-20.6 | 3.43 | 3.43 | 14 | 1.37 | 9.6 | 46.0 | 55.0 |
| 1/2" | 31.2 | 21.84-21.59 | 4.06 | 17.47-17.07 | 26.9-20.6 | 3.68 | 3.68 | 14 | 1.50 | 9.6 | 49.0 | 57.0 |
| 3/4" | 37.1 | 27.18-26.92 | 4.27 | 21.79-21.39 | 31.8-25.4 | 4.06 | 4.06 | 11 | 1.68 | 12.7 | 56.9 | 67.0 |
| 1" | 45.5 | 34.04-33.78 | 4.95 | 28.14-27.74 | 34.3-26.2 | 4.57 | 4.44 | 11 | 1.85 | 12.7 | 62.0 | 79.0 |
| 1-1/4" | 54.9 | 42.67-42.42 | 5.28 | 35.76-35.36 | 40.6-32.5 | 5.33 | 5.21 | 11 | 2.13 | 12.7 | 71.1 | 94.0 |
| 1-1/2" | 61.5 | 48.77-48.51 | 5.54 | 41.61-41.20 | 42.2-34.0 | 5.84 | 5.59 | 10 | 2.31 | 12.7 | 76.5 | 111.0 |
| 2" | 75.2 | 61.47-61.21 | 6.05 | 52.53-52.12 | 45.5-37.3 | 6.60 | 6.35 | 10 | 2.69 | 15.8 | 86.1 | 132.0 |
| 2-1/2" | 91.7 | 74.17-73.66 | 7.65 | 64.272-64.31 | 61.7-52.1 | 7.49 | 7.11 | 8 | 3.07 | 15.8 | 102.4 | 148.0 |
| 3 | 109.2 | 90.17-89.66 | 8.31 | 77.67-77.27 | 63.8-53.6 | 8.25 | 8.00 | 8 | 3.53 | 15.8 | 109.0 | 175.0 |
| Unit : MM | ||||||||||||