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ST • Spiral ducts

  • Spiral ducts
  • Galvanised steel

Circular spiral ducts with standard length of 3 m, made out of galvanized steel sheet of "Sendzimir" quality, with flat folded joint to obtain rigidity and airthightness. The airthightness class is up to class C according EN 12237. The airthightness class is also determined by the mounting on the construction site.

Application

  • Ducts type ST are used for air supply and exhaust in ventilation and air conditioning systems

Material

  • Galvanized steel

Specifications

  • Minimum pressure of -750 Pa to obtain class C
  • Maximum pressure of 2000 Pa to obtain class C
  • Max temp. of 70°C
  • Galvanized steel Z275 with double zinc layer of 275 g/m² according EN 10142 and EN 10143
  • Zinc Layer with average thickness of 20µ
  • Caution! Due to the fact that spiral ducts are manufactured in different badges, colour difference can occur

Accessories

  • Suspension brackets, type Safe Suspension Ring (without rubber sealing),
  • Connection pieces V (Male).
  • Aluminium tape, type ALUTAPE or cold shrinking tape, type PSB

Text for tender

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  • The ducts for the air conditioning system are made of galvanized steel. The thickness of the ducts depend on the diameter.
  • The connections between two ducts is made with a male connection piece type V. All accessories for the ducts are male

Order example

  • ST, 250 + SPR

Explanation:

  • ST = Duct type L= 3m
  • 250 = Diameter of the duct

Accessories:

  • SPR = Clamp type
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