SU Unions
Superlok’s Tube Fitting SU Unions are the epitome of precision and reliability in tube connection solutions. These unions are engineered to provide a secure and leak-free connection in a wide range of applications. With Superlok, you can trust that your critical fluid systems are in safe hands.Our SU Unions are meticulously designed to ensure a perfect fit, whether it’s for instrumentation, hydraulic, or pneumatic systems. Precision is the cornerstone of Superlok’s engineering, and these unions are no exception. They offer a tight and dependable connection that meets the most stringent industry standards.
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- Tube Fittings and Adapters
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- 316 Stainless Steel
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- Connection Size
- 1/16 in
- 1/8 in
- 3/16 in
Safe Product Selection
The SU Unions are a testament to Superlok’s commitment to providing superior tube fittings. When you choose Superlok, you choose precision, reliability, and peace of mind for your fluid system connections. Whether it’s in research, manufacturing, or any other industry, trust Superlok to deliver the quality and performance you need. The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection.
| SU-1 | SU 1/16 in. Tube Outside Diameter D Union |
 | 1.27 mm | 5/16 in | 8.63 mm |
| SU-2 | SU 1/8 in. Tube Outside Diameter D Union |
| 2.28 mm | 7/16 in | 12.70 mm |
| SU-2-TM | SU 1/8 in. Tube Outside Diameter D Union with Bored Through |
| 2.28 mm | 7/16 in | 12.70 mm |
| SU-3 | SU 3/16 in. Tube Outside Diameter D Union |
| 3.04 mm | 7/16 in | 13.71 mm |
| SU-4 | SU 1/4 in. Tube Outside Diameter D Union |
| 4.82 mm | 1/2 in | 15.24 mm |
| SU-4-TM | SU 1/4 in. Tube Outside Diameter D Union with Bored Through |
| 4.82 mm | 1/2 in | 15.24 mm |
| SU-5 | SU 5/16 in. Tube Outside Diameter D Union |
| 6.35 mm | 9/16 in | 16.25 mm |
| SU-6 | SU 3/8 in. Tube Outside Diameter D Union |
| 7.11 mm | 5/8 in | 16.76 mm |
| SU-8 | SU 1/2 in. Tube Outside Diameter D Union |
| 10.41 mm | 13/16 in | 22.86 mm |
| SU-8-TM-132L | SU 1/2 in. Tube Outside Diameter D, 6 in. Overall Length Coax Union with Bored Through |
| 10.41 mm | 13/16 in | 22.86 mm |
| SU-10 | SU 5/8 in. Tube Outside Diameter D Union |
| 12.70 mm | 15/16 in | 24.38 mm |
| SU-10-TM-132L | SU 5/8 in. Tube Outside Diameter D, 6 in. Overall Length Coax Union with Bored Through |
| 12.70 mm | 15/16 in | 24.38 mm |
| SU-12 | SU 3/4 in. Tube Outside Diameter D Union |
| 15.74 mm | 1-1/16 in | 24.38 mm |
| SU-12-TM-132L | SU 3/4 in. Tube Outside Diameter D, 6 in. Overall Length Coax Union with Bored Through |
| 15.74 mm | 1-1/16 in | 24.38 mm |
| SU-14 | SU 7/8 in. Tube Outside Diameter D Union |
| 18.28 mm | 1-3/16 in | 25.90 mm |
| SU-16 | SU 1 in. Tube Outside Diameter D Union |
| 22.35 mm | 1-3/8 in | 31.24 mm |
| SU-16-TM-132L | SU 1 in. Tube Outside Diameter D, 6 in. Overall Length Coax Union with Bored Through |
| 22.35 mm | 1-3/8 in | 31.24 mm |
| SU-20 | SU 1-1/4 in. Tube Outside Diameter D Union |
| 27.69 mm | 1-3/4 in | 41.15 mm |
| SU-24 | SU 1-1/2 in. Tube Outside Diameter D Union |
| 34.04 mm | 2-1/8 in | 50.04 mm |
| SU-32 | SU 2 in. Tube Outside Diameter D Union |
| 45.97 mm | 2-3/4 in | 67.56 mm |
| SU-4M | SU 4 mm Tube Outside Diameter D Union |
| 2.4 mm | 12 mm | 13.7 mm |
| SU-6M | SU 6 mm Tube Outside Diameter D Union |
| 4.8 mm | 14 mm | 15.3 mm |
| SU-8M | SU 8 mm Tube Outside Diameter D Union |
| 6.4 mm | 15 mm | 16.2 mm |
| SU-10M | SU 10 mm Tube Outside Diameter D Union |
| 7.9 mm | 18 mm | 17.2 mm |
| SU-12M | SU 12 mm Tube Outside Diameter D Union |
| 9.5 mm | 22 mm | 22.8 mm |
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Quality Parts, Available in Stock, Exceptional Service