U-Flex Seismic Omega Hose
U-Flex Loop Seismic Omega Connection Hoses are extremely critical accessories and used for protecting vital installations such as sprinkler systems from seismic motion like earthquakes.
U-Flex Seismic Omega Connection Hoses provide flexibility to piping systems and used to absorb possible seismic movements in three axis.

Seismic Omega (Loop) Connection Hoses
In addition to seismic protection, installation cost is lower comparing to conventional expansion joints considering lesser need for space and fixing points and ability for nested installations.
Comparing to use expansion joints and conventional piping to absorb vibrations, imposing lesser load to main pipeline is one of their significant advantages.
Seismic Omega (Loop) Connection Hoses
U-Flex Seismic Omega Connection Hoses Material Specifications
Hose | AISI 321 - 304L Staninless Steel |
Braid Wire | AISI 304 Stainless Steel |
Connections | Carbon Steel / AISI 304 Stainless Steel (Optional) |
U-Flex Seismic Omega Connection Hoses Product Specifications
Nominal Diameter | DN25 (1”) - DN200 (8”) |
Operating Pressure | 16 Bar |
Operating Temperature | -80 ºC - +600 ºC |
Connection Types | Flanged, Welding Neck, Grooved, Threaded |
U-Flex Dimensions and Movements

DN | Movements (±) 50mm (X.Y.Z) | Movements (±) 100mm (X.Y.Z) | |||||||
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(mm) | (inch) | A (mm) | L (mm) | Tol.(mm) | d (mm) | A (mm) | L (mm) | Tol.(mm) | d (mm) |
025 | 1" | 370 | 155 | ± 5 | 33.7 | 500 | 225 | ± 5 | 33.7 |
032 | 11/4" | 400 | 190 | ± 5 | 42.4 | 530 | 255 | ± 5 | 42.4 |
040 | 11/2" | 430 | 230 | ± 5 | 48.3 | 580 | 295 | ± 5 | 48.3 |
050 | 2" | 490 | 310 | ± 5 | 60.3 | 630 | 325 | ± 5 | 60.3 |
065 | 21/2” | 550 | 380 | ± 10 | 76.1 | 710 | 405 | ± 10 | 76.1 |
080 | 3” | 600 | 460 | ± 10 | 88.9 | 760 | 460 | ± 10 | 88.9 |
100 | 4" | 730 | 620 | ± 10 | 114.3 | 890 | 620 | ± 10 | 114.3 |
125 | 5" | 830 | 780 | ± 10 | 139.7 | 1020 | 780 | ± 10 | 139.7 |
150 | 6" | 960 | 920 | ± 10 | 168.3 | 1170 | 920 | ± 10 | 168.3 |
200 | 8" | 1240 | 1230 | ± 10 | 219.1 | 1470 | 1240 | ± 10 | 219.1 |
XYZ Axis Details of Movement Abilities
Axial Compression - Axial Extension ( ± 50 / ± 100) | |
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X Axis Movements ( ± 50 / ± 100) | Z Axis Movements ( ± 50 / ± 100) |
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Y Axis Movements ( ± 50 / ± 100) | |
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Seismic Omega (Loop) Connection Hoses
Seismic Omega (Loop) Connection Hoses