Constant hangers and constant supports

Application

Constant hangers are used for piping and related components where higher levels of vertical travel occur. Their job is to transfer the working load over the whole travel area while keeping it constant, i.e. without any considerable deviations. The functional precision of the constant hangers is decisive for favourable long term behaviour of the components involved.

Mode of operation

The mode of operation is based on the lever principle, according to which variable spring forces are transformed into a constant support force by way of lever mechanics. This allows for a lower installation height compared to the conventional LISEGA constant hanger.

Scope of performance

LISEGA Benefits

Users of LISEGA constant hangers benefit from many special features:

360 Degree view

• front view
• rear view

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  • Name plate contains complete technical specifications.

  • Load scale with permanent marking of adjustment load.

  • Principle-based constancy by way of a special mode of operation.

  • Pre-relaxed springs eliminate any significant loss of load-bearing capacity.

  • Directly readable travel scale with marking for hot/cold load positions.

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  • Torque-free load application due to a single suspension point.

  • Reduced friction due to minimised number of bearing points.

  • Blocking is adjustable to practically any travel position through fine-tooth notching.

  • Turnbuckle function allows re-adjustment of pipe installation position.

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Handle

• Symmetrical design ensures direct flow of forces through axis of symmetry.
• Favourable power-weight ratios for reduced installation loads.
• Arranged by load groups and travel ranges to simplify selection (modular system).
• Consistent functional behaviour due to high-quality corrosion protection and maintenance-free, chemically nickel-plated finishes.
• Readily adaptable to the installation situation due to suitable designs and standardised accessories.
• Double load-tube guiding of constant supports for transmission of side loads.
• Secure connection of load chains due to load- and connection-compatible modular components.

Designs

Low profile constant hangers type 18

Low profile constant hangers type 18

Serial standard design in special low profile version as an alternative suspension instead of type 11 where the installation height is limited.

Low profile constant supports type 19

Low profile constant supports type 19

Serial standard design for use as support where constant support from below is required.

Angulating constant supports type 19

Angulating constant supports type 19

For large horizontal displacements in the pipe system, the constant supports can be equipped with ball bushing joints.

Constant hanger trapezes type 79

Constant hanger trapezes type 79

Standard design

Mounting examples