Tube to Tube Union

Union

DU (Union)



Connects fractional tube

Part No. Tube O.D.

Inch (mm)

E

Min.

Width across flat A B l L
h H
Inch (mm) Inch (mm)
DU-1 1/16 (1.59) 1.27 5/16 (7.93)  5/16 (7.93)  8.63  10.92  17.50  25.15
DU-2 1/8 (3.17) 2.28 7/16 (11.11)  7/16 (11.11)  12.70  15.24  22.35  35.56
DU-3 3/16 (4.76) 3.04 7/16 (11.11)  1/2 (12.70)  13.71  16.00  24.13  37.33
DU-4 1/4 (6.35) 4.82 1/2 (12.70)  9/16 (14.28)  15.24  17.78  26.16  40.89
DU-5 5/16 (7.93) 6.35 9/16 (14.28)  5/8 (15.87)  16.25  18.54  28.19  42.92
DU-6 3/8 (9.52) 7.11 5/8 (15.87)  11/16 (17.46)  16.76  19.30  30.22  44.95
DU-8 1/2 (12.70) 10.41  13/16 (20.64)  7/8 (22.22)  22.86  21.84  30.98  51.30
DU-10 5/8 (15.87) 12.70 15/16 (23.81) 1 (25.40) 24.38 21.84 31.75 52.07
DU-12 3/4 (19.05) 15.74 1-1/16 (26.98) 1-1/8 (28.58) 24.38 21.84 33.27 53.59
DU-14 7/8 (22.22) 18.28 1-3/16 (30.16) 1-1/4 (31.75) 25.90 21.84 35.05 55.37
DU-16 1 (25.40) 22.35 1-3/8 (34.92) 1-1/2 (38.10) 31.24 26.41 40.38 64.77
DU-20 1-1/4 (31.75) 27.68 1-3/4 (44.45) 1-7/8 (47.63) 41.14 38.86 48.00 92.20
DU-24 1-1/2 (38.10) 33.90 2-1/8 (53.97) 2-1/4 (57.15) 50.03 45.21 53.60 107.95
DU-32 2 (50.80) 45.97 2-3/4 (69.85) 3 (76.20) 67.56 62.73 74.70 149.35

Connects metric tube

Part No. Tube O.D.
D
E
Min.
Width across flat A B l L
h H
DU-2M  2  1.7  12  12  12.9  15.3  22.4  35.6
DU-3M  3  2.4  12  12  12.9  15.3  22.1  35.3
DU-4M  4  2.4  12  12  13.7  16.1  24.1  37.3
DU-6M  6  4.8  14  14  15.3  17.7  26.2 41.0
DU-8M  8  6.4  15  16  16.2  18.6  28.2  43.2
DU-10M  10  7.9  18  19  17.2  19.5  31.0  46.2
 DU-12M  12  9.5  22  22  22.8   22.0   31.0  51.2
 DU-14M  14  11.1  24 25  24.4  22.0  31.8  52.0
DU-15M 15 11.9 24 25 24.4 22.0  31.8 52.0
DU-16M 16 12.7 24 25 24.4 22.0  31.8 52.0
DU-18M 18 15.1 27 30 24.4 22.0 33.3 53.5
DU-20M 20 15.9 30 32 26.0 22.0 34.8 55.0
DU-22M 22 18.3 30 32 26.0 22.0 34.8 55.0
DU-25M 25 21.8 35 38 31.3 26.5 40.4 65.0
DU-28M 28 21.8 41 46 36.6 36.6 43.4 85.0
DU-30M 30 26.2 46 50 39.7 39.3 49.5 92.9
DU-32M 32 28.6 46 50 42.0 41.6 51.3 97.3
DU-35M 35 31.5 50 55 42.1 41.7 51.3 97.6
DU-38M 38 33.7 55 60 49.4 47.9 58.4 113.6
DU-42M 42 36.8 60 65 49.3 47.8 58.4 113.4
DU-50M 50 45.2 70 76 67.2 62.5 74.7  149

Union Elbow

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Union Tee

Union Cross

Bulkhead Union

Bulkhead Retainer

Bulkhead Elbow Union

Reducing Union

Reducing Union Elbow

Reducing Union Cross

Reducing Union Tee

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