Close
The Straight Union (Metric Tube) is a high-precision instrumentation fitting designed to provide a seamless, leak-proof connection between two lengths of metric-sized tubing. Featuring a robust double-ferrule compression design, it ensures a secure mechanical grip that effectively manages system vibrations and pressure surges without the need for flaring or soldering. These unions are typically crafted from corrosion-resistant 316 stainless steel or durable brass, making them a staple in high-performance fluid systems such as industrial RO plants and instrumentation lines. By offering a torque-free assembly, they provide a reliable, gastight seal that maintains flow continuity in demanding environments where precision and structural integrity are paramount.
| UNION | ||||||
|---|---|---|---|---|---|---|
| Metric Tube | ||||||
| T-Tube O.D. (mm.) | Basic Ordering Number | Dimensions mm (in) | ||||
| L | C | E | G | F | ||
| 2 | VU-SS-2M | 35.6(1.40) | 12.9(0.51) | 12.0(0.47) | 12.0(0.47) | 1.7(0.07) |
| 3 | VU-SS-3M | 35.3(1.39) | 12.9(0.51) | 12.0(0.47) | 12.0(0.47) | 2.4(0.09) |
| 4 | VU-SS-4M | 37.3(1.47) | 13.7(0.54) | 12.0(0.47) | 12.0(0.47) | 2.4(0.09) |
| 6 | VU-SS-6M | 41.0(1.61) | 15.3(0.60) | 14.0(0.55) | 14.0(0.55) | 4.8(0.19) |
| 8 | VU-SS-8M | 43.2(1.70) | 16.2(0.64) | 16.0(0.63) | 15.0(0.59) | 6.4(0.25) |
| 10 | VU-SS-10M | 46.2(1.82) | 17.2(0.68) | 19.0(0.75) | 18.0(0.71) | 7.9(0.31) |
| 12 | VU-SS-12M | 51.2(2.02) | 22.8(0.90) | 22.0(0.87) | 22.0(0.87) | 9.5(0.37) |
| 14 | VU-SS-14M | 52.0(2.05) | 24.4(0.96) | 25.0(0.98) | 24.0(0.94) | 11.1(0.44) |
| 15 | VU-SS-15M | 52.0(2.05) | 24.4(0.96) | 25.0(0.98) | 24.0(0.94) | 11.9(0.47) |
| 16 | VU-SS-16M | 52.0(2.05) | 24.4(0.96) | 25.0(0.98) | 24.0(0.94) | 12.7(0.50) |
| 18 | VU-SS-18M | 53.5(2.11) | 24.4(0.96) | 30.0(1.18) | 27.0(1.06) | 15.1(0.59) |
| 20 | VU-SS-20M | 55.0(2.17) | 26.0(1.02) | 32.0(1.26) | 30.0(1.18) | 15.9(0.63) |
| 22 | VU-SS-22M | 55.0(2.17) | 26.0(1.02) | 32.0(1.26) | 30.0(1.18) | 18.3(0.72) |
| 25 | VU-SS-25M | 65.0(2.56) | 31.3(1.23) | 38.0(1.50) | 35.0(1.38) | 21.8(0.86) |
| 28 | VU-SS-28M | 85.0(3.35) | 36.6(1.44) | 46.0(1.81) | 41.0(1.61) | 21.8(0.86) |
| 30 | VU-SS-30M | 92.7(3.65) | 39.6(1.56) | 50.0(1.97) | 46.0(1.81) | 26.2(1.03) |
| 32 | VU-SS-32M | 97.3(3.83) | 42.0(1.65) | 50.0(1.97) | 46.0(1.81) | 28.6(1.13) |
| 38 | VU-SS-38M | 113.6(4.47) | 49.4(1.94) | 60.0(2.36) | 55.0(2.17) | 33.7(1.33) |