Metal Bellows Expansion Joints

Omega U-Flex Expansion Joints

Omega U-Flex Expansion Joints

Omega U-Flex is a flexible loop made of two parallel braided metal hoses joined by a U return, absorbing movement in all directions at building joints and moving connections.

It is used at building joint crossings, fire systems, heating-cooling and equipment connections. The product range includes flanged, weld neck and grooved models from DN25 to DN200 in 40 mm and 100 mm movement series.

DN25 – DN200size (product range)
U shapemulti-directional movement
40 / 100 mmmovement series (product name)
3 connectionsflanged, welded, grooved

Main Applications

  • Building joint crossings
  • Fire system joint crossings
  • Heating and cooling lines
  • Tank and equipment connections
  • Lines in seismic zones
  • Flexible crossings in tight spaces

Technical Data

TypeOmega U-Flex flexible expansion loop
SizesDN25 – DN200 (product range)
Movement series40 mm and 100 mm (product name)
ConnectionFlanged, weld neck, grooved (product range)
Flexible elementBraided metal hose (depending on model)
Pressure classDepending on model
TemperatureDepending on model
V-shaped alternativeOmega V-Flex

Material Options

PartOmega U-FlexOmega V-Flex
GeometryParallel legs with U returnV-shaped legs
MovementMulti-directionalMulti-directional
ConnectionFlanged, welded, groovedFlanged, welded
Typical useLarge lateral movement, jointsCompact spaces, joints

Which material? Omega elements absorb joint movement by flexing their legs; hangers and supports should be planned to allow free movement of the U return. Pressure and temperature ratings are verified for the chosen element.

Advantages

Movement in All Directions

  • Axial, lateral, vertical

Three Connection Types

  • Flange, weld, groove

Seismic Flexibility

  • Prevents line breakage

Compact Application

  • At joint crossings

Construction and Design Features

  • Two parallel flexible hoses
  • U return piece
  • End connections
  • Hanger point (depending on model)

Send the size, connection type, joint movement and fluid; we will confirm a suitable Omega U-Flex element.

How to Choose?

  1. Size and connectionChoose DN and flanged, welded or grooved ends.
  2. PressureConfirm line pressure per model.
  3. MovementChoose the 40 or 100 mm series for joint movement.
  4. LayoutPlan hanger and clearance for the U return.

Complementary Products

Why ORFA?

Since 1985Over 40 years of experience in supplying industrial piping equipment.
Technical ConsultancyTechnical support on Omega element selection and layout.
Delivery from StockOmega U-Flex elements are shipped from stock.
Compatibility CheckSliding Support for the hanger layout is planned together.
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