Spring hangers and spring supports

Application

Spring hangers and spring supports are used to balance slight vertical displacements in the pipe system. These components work on the basis of pre-set helical coil springs which exert a variable supporting load over the range of movement in accordance with their specified spring characteristics. Load variations resulting from this are limited through the stress analysis calculations, depending on the sensitivity of the piping.

Scope of performance

LISEGA Benefits

Users of our spring hangers and spring supports benefit from many special features:

360 Degree view

• Rückansicht

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  • No welding (types 20, 21, 27).

  • Fully galvanised surfaces.

  • The cold or blocking position is marked on the travel scale (white arrow).

  • Fully adjustable blocking system.

  • On the spring hangers, the pre-set values are noted on the riveted name plate.

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  • Special pre-relaxed springs with a CDP (cataphoretic dip painting) finish prevent any significant loss in load capacity.

  • Integrated connecting elements.

  • Variable connection possibilities within the load group selected and the possibility of later adjustment for load setting.

  • The theoretical hot position (operating position) is marked on the travel scale (red arrow).

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Handle

• Five travel ranges from 0 to 400 mm / 0 to 15.75 in, load group C to load group 9.
• Torque-free load application by covering the load and symmetry axis.
• Favourable power-weight ratios for reduced installation loads.
• Modular system simplifies selection (load groups and travel ranges).
• Readily adaptable to the installation situation due to suitable designs and standardised accessories.
• Secure connection of load chains due to load- and connection-compatible modular components.

Designs

Spring hangers type 21

Spring hangers type 21

This design is most commonly used and equipped with an upper connection for suspension. It is utilised where the surrounding structure offers a suitable connection point and sufficient installation space.

Spring hangers type 25

Spring hangers type 25

This version is used if the permissible deflection of a support chain would be exceeded when using type 21, or if there is insufficient installation space for a type 21 spring hanger.

Spring supports type 29

Spring supports type 29

If the surrounding conditions do not permit suspensions, this design offers a suitable alternative as a support. For larger horizontal displacements of the support-bearing load, we recommend the use of LISEGA slide plates.

Angulating spring supports type 20

Angulating spring supports type 20

This type is able to absorb lateral displacements practically free of friction forces. The resulting forces are thus almost completely eliminated in all planes, in vertical as well as horizontal directions of movement.

Sway braces type 27

Sway braces type 27

These special components act in compression and tension directions, and are used to stabilise the position of pipe systems and other plant equipment.

Spring hanger trapezes type 79

Spring hanger trapezes type 79

These commonly used components combine the advantages of spring hangers with the easy-to-install, weld-free plug-in trapezes.

Mounting examples