Compression Tube Unions and Reducing Unions
 
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Tube Union - Imperial
Tube
Size 1		 Tube
Size 2		 A B C D E Part No
1/8 " 1/8 " 35.5 15 - 22.5 9.52  SI2-TU-T2-T2-6K
1/4 " 1/4 " 41 17 - 26.2 12.7 SI2-TU-T4-T4-6K
5/16 " 5/16" 43 18 - 28.2 14.3 SI2-TU-T5-T5-6K
3/8 " 3/8" 45 18.3 - 30 17 SI2-TU-T6-T6-6K
1/2 " 1/2 " 51.3 21.6 - 31 22 SI2-TU-T8-T8-6K
3/4 " 3/4 " 53.5 21.8 - 33 30 SI2-TU-T12-T12-6K
1 " 1 " 65 26.7 - 40.5 36 SI2-TU-T16-T16-6K
1  1/4 " 1  1/4 " - - - - - SI2-TU-T20-T20-6K
1  1/2 " 1  1/2 " 107.5 45 - 53.5 54 SI2-TU-T24-T24-6K
2 " 2 " 150 64 - 75 70 SI2-TU-T32-T32-6K
Threads are UNF, Dimensions in mm
Specifications subject to change without prior notification
Tube Union - Metric
Tube
Size 1		 Tube
Size 2		 A B C D E Part No
3 mm 3 mm 35.5 15 - 22.5 9.52 SM2-TU-T3-T3-6K
6 mm 6 mm 41 17 - 26.2 12.7 SM2-TU-T6-T6-6K
8 mm 8 mm 43 18 - 28.2 14.3 SM2-TU-T8-T8-6K
10 mm 10 mm 45 18.3 - 30 17 SM2-TU-T10-T10-6K
12 mm 12 mm 51.3 21.6 - 31 22 SM2-TU-T12-T12-6K
20 mm 20 mm 53.5 21.8 - 33 30 SM2-TU-T20-T20-6K
25 mm 25 mm 65 26.7 - 40.5 36 SM2-TU-T25-T25-6K
28 mm 28 mm - - - - - SM2-TU-T28-T28-6K
32 mm 32 mm 107.5 45 - 41 54 SM2-TU-T32-T32-6K
50 mm 50 mm 150 64 - 75 70 SM2-TU-T50-T50-6K
Threads are UNF, Dimensions in mm
Specifications subject to change without prior notification
                   
Tube Reducing Union - Imperial
Tube
Size 1		 Tube
Size 2		 A B C D E Part No
1/4 " 1/8 " 38.3 17 15 24 12.7 SI2-TRU-T4-T2-6K
5/16 " 1/8 " 39.3 18 15 25.2 14.3 SI2-TRU-T5-T2-6K
1/4 " 42 18 17 27.2 14.3 SI2-TRU-T5-T4-6K
3/8 " 1/8" 40.5 18.3 15 26 17 SI2-TRU-T6-T2-6K
1/4 " 43 18.3 17 28 17  SI2-TRU-T6-T4-6K
5/16 " 44 18.3 18 29 17 SI2-TRU-T6-T5-6K
1/2 " 1/4" 46.2 21.6 17 28.5 22 SI2-TRU-T8-T4-6K
5/16 " 47.2 21.6 17 29.5 22 SI2-TRU-T8-T5-6K
3/8 " 48.2 21.6 18.3 30.5 22 SI2-TRU-T8-T6-6K
3/4 " 3/8 " 49.5 21.8 18.3 31.5 30 SI2-TRU-T12-T6-6K
1/2 " 52.7 21.8 21.6 32 30 SI2-TRU-T12-T8-6K
1 " 1/2 " 58 26.7 21.6 36 36 SI2-TRU-T16-T8-6K
3/4 " 59.5 26.7 21.8 37 36 SI2-TRU-T16-T12-6K
1 1/4" 1 " - - - - - SI2-TRU-T20-T16-6K
1  1/2 " 1 " 86.5 45 26.7 47 54 SI2-TRU-T24-T20-6K
2 " 1  1/2 " 129 64 45 64 70 SI2-TRU-T32-T24-6K
    - - - - - -
Threads are UNF, Dimensions in mm
Specifications subject to change without prior notification
Tube Reducing Union - Metric
Tube
Size 1		 Tube
Size 2		 A B C D E Part No
6 mm 3 mm 53 28 68 22 26 SM2-TRU-T6-T3-6K
8 mm 3 mm 53 28 68 22 26 SM2-TRU-T8-T3-6K
6 mm 53 28 68 22 26 SM2-TRU-T8-T6-6K
10 mm 3 mm 57 30 71 27 32 SM2-TRU-T10-T3-6K
6 mm 57 30 71 27 32 SM2-TRU-T10-T6-6K
8 mm 57 30 71 27 32 SM2-TRU-T10-T8-6K
12 mm 6 mm 57 30 71 27 32 SM2-TRU-T12-T6-6K
8 mm 57 29 68 22 26 SM2-TRU-T12-T8-6K
10 mm 57 29 68 22 26 SM2-TRU-T12-T10-6K
20 mm 10 mm 57 30 71 27 32 SM2-TRU-T20-T10-6K
12 mm 57 30 71 27 32 SM2-TRU-T20-T12-6K
25 mm 12 mm 64 29 73 32 38  SM2-TRU-T25-T12-6K
20 mm 64 29 73 32 38  SM2-TRU-T25-T20-6K
28 mm 25 mm 71 29 78 41 49  SM2-TRU-T28-T25-6K
32 mm 25 mm 71 29 78 41 49  SM2-TRU-T32-T28-6K
50 mm 32 mm 71 29 78 41 49  SM2-TRU-T50-T32-6K
    71 29 78 41 49  SM2-TRU-T50-T32-6K
Threads are UNF, Dimensions in mm
Specifications subject to change without prior notification