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Tube Fitting Reducing Union
Truelok Ordering Number |
T Tube O.D. |
Tx Tube O.D. |
A |
D |
Dx |
E Minimum Opening |
F Hex Flat |
G Hex Flat |
Gx Hex Flat |
H |
|
inch |
inch |
inch |
inch |
inch |
inch |
inch |
inch |
inch |
inch |
RU-125-062 |
1/8 |
1/16 |
1.22 |
0.50 |
0.34 |
0.05 |
7/16 |
7/16 |
5/16 |
0.81 |
RU-250-125 |
1/4 |
1/8 |
1.52 |
0.60 |
0.50 |
0.09 |
1/2 |
9/16 |
1/16 |
0.97 |
RU-375-125 |
3/8 |
1/8 |
1.61 |
0.66 |
0.50 |
0.09 |
5/8 |
11/16 |
7/16 |
1.06 |
RU-375-250 |
3/8 |
1/4 |
1.70 |
0.66 |
0.60 |
0.19 |
5/8 |
11/16 |
9/16 |
1.12 |
RU-500-125 |
1/2 |
1/8 |
1.78 |
0.90 |
0.50 |
0.09 |
13/16 |
7/8 |
7/16 |
1.12 |
RU-500-250 |
1/2 |
1/4 |
1.85 |
0.90 |
0.60 |
0.19 |
13/16 |
7/8 |
9/16 |
1.16 |
RU-500-375 |
1/2 |
3/8 |
1.91 |
0.90 |
0.66 |
0.28 |
13/16 |
7/8 |
11/16 |
1.22 |
RU-750-250 |
3/4 |
1/4 |
1.93 |
0.96 |
0.60 |
0.19 |
1-1/16 |
1-1/8 |
9/16 |
1.25 |
RU-750-375 |
3/4 |
3/8 |
2.0 |
0.96 |
0.66 |
0.28 |
1-1/16 |
1-1/8 |
11/16 |
1.31 |
RU-750-500 |
3/4 |
1/2 |
2.11 |
0.96 |
0.90 |
0.41 |
1-1/16 |
1-1/8 |
7/8 |
1.31 |
RU-1000-500 |
1 |
1/2 |
2.49 |
1.23 |
0.90 |
0.41 |
1-3/8 |
1-1/2 |
7/8 |
1.61 |
RU-1000-750 |
1 |
3/4 |
2.47 |
1.23 |
0.96 |
0.62 |
1-3/8 |
1-1/2 |
1-1/8 |
1.59 |
Material:
Truelok standard Compression Tube Fittings are manufactured by using SS316 Bar Stock in accodance with ASTM A-479 and SS316 Forging in accordance with ASTM A-182. Fittings in other materials are available at customer's request.
Operating Temperature:
Truelok Compression Tube Fittings provide safe and reliable performance from cyrogenic temperature to high temperature upto 380 °C.
Working Pressure:
The maximum working pressure of standard Compression Tube Fittings when used in conjunction with annealed SS316 seamless tubing per ASTM A-213 or equivalent is shown below:
Tube O.D. |
Wall Thickness (inch) | |||||
0.020 | 0.028 | 0.035 | 0.049 | 0.065 | 0.083 | |
1/8" | 6863 | 9967 | 12641 | |||
1/4" | 4600 | 5891 | 8602 | 11688 | ||
3/8" | 3777 | 5460 | 7571 | |||
1/2" | 2768 | 3976 | 5423 | 7162 |


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Truelok ® a business unit of cMAX-2000, Inc.
4295 Jurupa Street, Unit 114, Ontario, CA 91761
Tel:
(909) 605-9000
Fax:
(909) 605-9002
Email:
info@truelok.us