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Fittings \ Tube Fittings \ Tube to Tube Union \ Union

Union (CUA)


Connects Fractional Tubes

Part
Number
Dimension
A
Dimension
B
Min. d Dimension
L
Dimension
I
Tube O.D.
(D)
Width Across
Flat H
Width Across
Flat h
CUA-1 8.63 mm 10.92 mm 1.27 mm 25.15 mm 17.50 mm 1/16"
1.58 mm
5/16"
7.93 mm
5/16"
7.93 mm
CUA-2 12.70 mm 15.24 mm 2.28 mm 35.56 mm 22.35 mm 1/8"
3.17 mm
7/16"
11.11 mm
7/16"
11.11 mm
CUA-3 13.71 mm 16.00 mm 3.04 mm 37.33 mm 24.13 mm 3/16"
4.76 mm
1/2"
12.70 mm
7/16"
11.11 mm
CUA-4 15.24 mm 17.78 mm 4.82 mm 40.89 mm 26.16 mm 1/4"
6.35 mm
9/16"
14.28 mm
1/2"
12.70 mm
CUA-5 16.25 mm 18.54 mm 6.35 mm 42.92 mm 28.19 mm 5/16"
7.93 mm
5/8"
15.87 mm
9/16"
14.28 mm
CUA-6 16.76 mm 19.30 mm 7.11 mm 44.95 mm 30.22 mm 3/8"
9.52 mm
11/16"
17.46 mm
5/8"
15.87 mm
CUA-8 22.86 mm 21.84 mm 10.41 mm 51.30 mm 30.98 mm 1/2"
12.70 mm
7/8"
22.22 mm
13/16"
20.63 mm
CUA-10 24.38 mm 21.84 mm 12.70 mm 52.07 mm 31.75 mm 5/8"
15.87 mm
1"
25.40 mm
15/16"
23.81 mm
CUA-12 24.38 mm 21.84 mm 15.74 mm 53.59 mm 33.27 mm 3/4"
19.05 mm
1 1/8"
28.57 mm
1 1/16"
26.98 mm
CUA-14 25.90 mm 21.84 mm 18.28 mm 55.37 mm 35.05 mm 7/8"
22.22 mm
1 1/4"
31.75 mm
1 3/16"
30.16 mm
CUA-16 31.24 mm 26.41 mm 22.35 mm 64.77 mm 40.38 mm 1"
25.40 mm
1 1/2"
38.10 mm
1 3/8"
34.92 mm
CUA-20 41.14 mm 38.86 mm 27.68 mm 92.20 mm 48 mm 1 1/4"
31.75 mm
1 7/8"
47.62 mm
1 3/4"
44.45 mm
CUA-24 50.03 mm 45.21 mm 34.03 mm 107.95 mm 53.60 mm 1 1/2"
38.10 mm
2 1/4"
57.15 mm
2 1/8"
53.97 mm
CUA-32 67.56 mm 62.73 mm 45.97 mm 149.35 mm 74.70 mm 2"
50.80 mm
3"
76.20 mm
2 3/4"
69.85 mm

Connects Metric Tubes

Part
Number
Dimension
A
Dimension
B
Min. d Dimension
L
Dimension
I
Tube O.D.
(D)
Width Across
Flat H
Width Across
Flat h
CUA-2M 12.9 mm 15.3 mm 1.7 mm 35.6 mm 22.4 mm 2 mm 12 mm 12 mm
CUA-3M 12.9 mm 15.3 mm 2.4 mm 35.3 mm 22.1 mm 3 mm 12 mm 12 mm
CUA-4M 13.7 mm 16.1 mm 2.4 mm 37.3 mm 24.1 mm 4 mm 12 mm 12 mm
CUA-6M 15.3 mm 17.7 mm 4.8 mm 41.0 mm 26.2 mm 6 mm 14 mm 14 mm
CUA-8M 16.2 mm 18.6 mm 6.4 mm 43.2 mm 28.2 mm 8 mm 16 mm 15 mm
CUA-10M 17.2 mm 19.5 mm 7.9 mm 46.2 mm 31.0 mm 10 mm 19 mm 18 mm
CUA-12M 22.8 mm 22.0 mm 9.5 mm 51.2 mm 31.0 mm 12 mm 22 mm 22 mm
CUA-15M 24.4 mm 22.0 mm 11.9 mm 52.0 mm 31.8 mm 15 mm 25 mm 24 mm
CUA-16M 24.4 mm 22.0 mm 12.7 mm 52.0 mm 31.8 mm 16 mm 25 mm 24 mm
CUA-18M 24.4 mm 22.0 mm 15.1 mm 53.5 mm 33.3 mm 18 mm 30 mm 27 mm
CUA-20M 26.0 mm 22.0 mm 15.9 mm 55.0 mm 34.8 mm 20 mm 32 mm 30 mm
CUA-22M 26.0 mm 22.0 mm 18.3 mm 55.0 mm 34.8 mm 22 mm 32 mm 30 mm
CUA-25M 31.3 mm 26.5 mm 21.8 mm 65.0 mm 40.4 mm 25 mm 38 mm 35 mm
CUA-28M 36.6 mm 36.6 mm 21.8 mm 85.0 mm 43.4 mm 28 mm 46 mm 41 mm
CUA-32M 42.0 mm 41.6 mm 28.6 mm 97.3 mm 51.3 mm 32 mm 50 mm 46 mm
CUA-38M 49.4 mm 47.9 mm 33.7 mm 113.6 mm 58.4 mm 38 mm 60 mm 55.0 mm
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