OUR PRODUCTS
Tube Fittings
Pipe Fittings
Quick Connect Couplings
Needle Valves
Manifolds
Ball Valves & Check Valves
Pipe / Tube Clamps
Pressure Gauges
Industries we serve: Marine & Oilfield Industry, Chemical & Petrochemical Industry, Offshore Facility, Gas & Oil Pipelines, Iron Industry & Nuclear...
Tube Fittings - Reducing Union
Fractional Tube to Fractional Tube
Part No. Tube O.D E
Min
h H H1 F F1 G G1 I L1
T T 1
in mm in mm in mm in mm in mm
3AV RU-2 3/16 4.76 1/8 3.17 2.3 7/16 11.11 1/2 12.70 7/16 11.11 13.7 12.7 16.0 15.2 23.4 36.6
4AV RU-2
4AV RU-3
1/4
1/4
6.35
6.35
1/8
3/16
3.17
4.76
2.3
3.0
1/2
1/2
12.70
12.70
9/16
9/16
14.28
14.28
7/16
1/2
11.11
12.70
15.2
15.2
12.7
13.7
17.8
17.8
15.2
16.0
24.6
25.4
38.6
39.4
5AV RU-2
5AV RU-3
5/16
5/16
7.93
7.93
1/8
1/4
3.17
6.35
2.3
4.8
9/16
9/16
14.28
14.28
5/8
5/8
15.87
15.87
7/16
9/16
11.11
14.28
16.3
16.3
12.7
15.2
18.5
18.5
15.2
17.8
25.9
27.4
39.9
42.2
6AV RU-2
6AV RU-4
6AV RU-5
3/8
3/8
3/8
9.52
9.52
9.52
1/8
1/4
5/16
3.17
6.35
7.93
2.3
4.8
6.4
5/8
5/8
5/8
15.87
15.87
15.87
11/16
11/16
11/16
17.46
17.46
17.46
7/16
9/16
5/8
11.11
14.28
15.87
16.8
16.8
16.8
12.7
15.2
16.3
19.3
19.3
19.3
15.2
17.8
18.5
26.9
28.4
29.5
40.9
43.2
44.2
8AV RU-2
8AV RU-4
8AV RU-6
1/2
1/2
1/2
12.70
12.70
12.70
1/8
1/4
3/8
3.17
6.35
9.52
2.3
4.8
7.0
13/16
13/16
13/16
20.63
20.63
20.63
7/8
7/8
7/8
22.22
22.22
22.22
7/16
9/16
11/16
11.11
14.28
17.46
22.9
22.9
22.9
12.7
15.2
16.8
21.8
21.8
17.8
15.2
17.8
19.3
28.4
29.5
31.0
45.2
47.0
48.5
10AV RU-6
10AV RU-8
5/8
5/8
15.87
15.87
3/8
1/2
9.52
12.70
7.0
10.0
15/16
15/16
23.81
23.81
1
1
25.40
25.40
11/16
7/8
17.46
22.22
24.4
24.4
16.8
22.9
21.8
21.8
19.3
21.8
31.8
31.8
49.3
52.1
12AV RU-4
12AV RU-6
12AV RU-8
12AV RU-10
3/4
3/4
3/4
3/4
19.05
19.05
19.05
19.05
1/4
3/8
1/2
5/8
6.35
9.52
12.70
15.87
4.8
7.0
10.0
12.0
1-1/16
1-1/16
1-1/16
1-1/16
26.98
26.98
26.98
26.98
1-1/8
1-1/8
1-1/8
1-1/8
28.57
28.57
28.57
28.57
9/16
11/16
7/8
1
14.28
17.46
22.22
25.40
24.4
24.4
24.4
24.4
15.2
16.8
22.9
24.4
21.8
21.8
21.8
21.8
17.8
19.3
21.8
21.8
31.8
33.3
33.3
33.3
49.3
50.8
53.6
53.6
16AV RU-8
16AV RU-12
1
1
25.40
25.40
1/2
3/4
12.70
19.05
10.0
16.0
1-3/8
1-3/8
34.92
34.92
1-1/2
1-1/2
38.10
38.10
7/8
1-1/8
22.22
28.57
31.2
31.2
22.9
24.4
26.4
26.4
21.8
21.8
40.9
40.9
63.2
62.7
Metric Tube to Metric Tube
Part No. Tube O.D E
Min
Width across flat F F1 G G1 I L
T(mm) T1(mm) h H H1
M6AV RU-M3
M6AV RU-M3
6
6
3
4
2.3
2.3
12.7
12.7
14.3
14.3
11.1
12.7
15.3
15.3
12.9
13.7
17.7
17.7
15.3
16.1
24.6
25.4
38.6
39.4
M8AV RU-M6 8 6 4.8 14.3 15.9 14.3 16.2 15.3 18.6 17.7 27.4 42.3
M10AV RU-M6
M10AV RU-M6
10
10
6
8
4.8
6.4
17.5
17.5
19.1
22.2
14.3
15.9
17.2
17.2
15.3
16.2
19.5
19.5
17.7
18.6
29.5
30.0
44.5
45.1
M12AV RU-M6
M12AV RU-M8
M12AV RU-M10
12
12
12
6
8
10
4.8
6.4
8.0
20.6
20.6
20.6
22.2
22.2
22.2
14.3
15.9
19.1
22.8
22.8
22.8
15.3
16.2
17.2
22.0
22.0
22.0
17.7
18.6
19.5
29.5
30.2
31.0
47.0
47.8
48.7
M16AV RU-M12 16 12 10.0 23.8 25.4 22.2 24.4 22.8 22.0 22.0 31.8 52.0
M25AV RU-M18
M25AV RU-M20
25
25
18
20
15.0
16.0
34.9
34.9
38.1
38.1
30.2
31.8
31.3
31.3
24.4
26.0
26.5
26.5
22.0
22.0
38.6
39.9
61.0
62.3
Metric Tube to Fractional Tube
Part No. Tube O.D E
Min
Width across flat F F1 G G1 I L
D
(mm)
D1 h H H1
in mm
M3AV RU-2 3 1/8 3.17 2.3 11.1 11.1 11.1 12.9 12.8 15.3 15.2 22.1 35.2
M4AV RU-2
M4AV RU-4
4
4
1/8
1/4
3.17
6.35
2.3
2.3
11.1
14.3
12.7
12.7
11.1
14.3
13.7
13.7
12.8
15.3
16.1
16.1
15.2
17.7
23.4
25.4
36.5
39.4
M6AV RU-2
M6AV RU-4
M6AV RU-5
6
6
6
1/8
1/4
5/16
3.17
6.35
7.93
2.3
4.8
4.8
12.7
12.7
14.3
14.3
14.3
14.3
11.1
14.3
15.9
15.3
15.3
15.3
12.8
15.8
16.2
17.7
17.7
17.7
15.2
17.7
18.6
24.6
26.2
27.4
38.5
41.0
42.3
M8AV RU-4 8 1/4 6.35 4.8 14.3 15.9 14.3 16.2 15.3 18.6 17.7 27.4 42.3
M10AV RU-2
M10AV RU-4
M10AV RU-5
M10AV RU-6
10
10
10
10
1/8
1/4
5/16
3/8
3.17
6.35
7.93
9.52
2.3
4.8
6.4
7.0
17.5
17.5
17.5
17.5
19.1
19.1
19.1
19.1
11.1
14.3
15.9
17.5
17.2
17.2
17.2
17.2
16.2
15.3
12.8
15.3
19.5
19.5
19.5
19.5
15.2
17.7
18.6
19.2
27.7
29.5
30.0
31.0
41.8
44.5
45.1
45.9
M12AV RU-5
M12AV RU-6
M12AV RU-8
12
12
12
5/16
3/8
1/2
7.93
9.52
12.70
6.4
7.0
10.0
20.6
20.6
20.6
22.2
22.2
22.2
15.9
17.5
22.2
22.8
22.8
22.8
16.2
16.9
22.8
22.0
22.0
22.0
18.6
19.2
22.0
30.2
31.0
31.0
47.8
48.4
51.2
M15AV RU-8 15 1/2 12.70 10.0 23.8 25.4 22.2 24.4 22.8 22.0 22.0 31.8 52.0
M16AV RU-10 16 5/8 15.87 12.0 23.8 25.4 25.4 24.4 24.4 22.0 22.0 31.8 52.0
M18AV RU-12 18 3/4 19.05 15.0 27.0 30.2 28.6 24.4 24.4 22.0 22.0 31.8 53.5
 
All Dimensions are for reference only, and are subject to change without prior Notice
Sizes and types other than featured above are available on request.