Spring band clamps

W.TEC®FBS - spring band clamps for the industrial sector

Hose-tube connections are often fastened with fixed clamps, referred to as hose clamps. Irrespective of the design of the clamp, e.g. worm drive hose clamps for screwing or ear clamps for clamping, a fixed force is transferred to the hose. However, this force changes because of vibrations and temperature changes: with increasing coldness, the connection becomes looser and untight; with increasing heat, the connection becomes tighter and damages the hose.

However, spring band clamps are self-tightening fasteners for hose-support combinations. Due to the use of tempered spring band steel, they have a very high degree of flexibility. They therefore continually adapt to the changing properties (changing operating temperatures and pressure ratios) of the hose and support. With a virtually consistent clamping force, spring band clamps ensure a constant, leak-free sealing without any damage to the hose or support. The large number of different assembly and locking variants ensures a maximum number of possible applications.

Spring band clamps

Why spring band clamps?

  • High flexibility
    Continuous adaptation to the changing properties of the hose and supports thanks to the use of tempered spring band steel
  • Constant, even clamping force
    Constant, leak-free sealing between -40°C and 210°C without any damage to the hose-support connection
  • Easy, quick and reliable assembly
    Assembly time reduced even further thanks to the use of spring band clamps with handy clip
  • No maintenance required
    No subsequent re-tightening of the connection required
  • Environmentally-friendly surface protection
    Chrome (VI)-free zinc flake surface with exceptional resistance to chemicals and corrosion
  • Can be reused
    Spring force does not diminish when used several times

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Technical features

Material
  • High-strength, alloyed spring steel 51CrV4
  • High level of protection against brittle fracture, especially at low temperatures
Surface
  • Multi-layered & environmentally friendly chrome (VI)-free coating
  • Zinc-containing, inorganic base coating and organic top coat
  • Complies with the guidelines of the German Automobile Act (RoHS-compliant)
Corrosion protection
  • Exceptional resistance to corrosion, temperature (up to 210°C) and chemicals
  • Guaranteed 720 hours of salt spray resistance in accordance with DIN EN ISO 9227
Available nominal diameters and band widths
  • Nominal diameter 9.0 mm - 90 mm
  • Band widths 8.4 mm, 10 mm & 12 mm
Pressure
  • Depending on the hose-support combination, connections of up to a maximum of 11 bar can be fastened
Standardisation
  • DIN 3021: Hose clamps – Spring band clamps
  • DIN 3021-1: Dimensions, marking, materials, types
  • DIN 3021-2: Technical delivery conditions
  • DIN 3021-3: Spring band clamp-hose-spigot

Application/sectors

Spring band clamps can be used in the following sectors in particular:

  • Großküchen/Industriegeschirrspüler
  • Industrieklimaanlagen
  • Landmaschinen/Traktoren
  • Bodenreinigungsmaschinen
  • Wohnmobile
  • Wärmepumpen
  • Heizung/Klima
  • Sanitär (z.B. Toiletten für Schiffe, Bahn, Flugzeug)
  • Lebensmittelindustrie (z.B. Backautomaten/Kaffeeautomaten )
  • Solarthermie
  • Druckindustrie
  • Weiße Ware
  • Baumaschinen
  • Autogasanlagen
  • Kompressoren
  • Flurförderfahrzeuge
  • Getränkeindustrie (z.B. Abfüllanlagen)
Contact
Contact for C-Parts management

We are there for you!

We will be pleased to advise you personally.
Contact us at T +49 7931 91-0 or by e-mail at produktmarketing@wuerth-industrie.com produktmarketing@wuerth-industrie.com.

 

 

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