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ROKAFLEXROKAFLEX
ROKAFLEXROKAFLEX
  • Home
  • Products
    • Fittings
    • Ducts
    • Dampers
    • Diffusers & ventilation grilles
    • Flexible ducts & tubes
    • Rooftop
      • Angular roof hoods
      • Round roof hoods
      • Round roof transitions
      • Angular roof transitions
    • Silencers
    • Volume flow controllers
    • Accessories
  • Catalogue
  • Solutions
    • Wholesale
    • Duct construction
    • Industry
    • Shipbuilding
    • Residential Ventilation
  • Company
    • Production
    • Quality
    • Logistics
    • Careers
    • History
    • Locations
  • Service
    • Documents
    • Rokaflex Rooftop
    • Rokadim
  • Contact
  • EN
    • DE – German
    • FR – French

Spiral duct, perforated

Home ShopDuctsSpiral duct, perforated

Spiral duct, perforated

SRP.

perforated spiral duct,
according to DIN EN 1506 or DIN EN 12237.
Length Tolerance: ±0.005L,
Outer diameter over the fold is approx. d + ~ 8 mm,
round perforation in staggered rows,
hole width 5 mm, hole spacing 7 mm,
Free cross-section approx. 34%,
drag coefficient ζ = 11.6,
Uniform radial flow at ΔPst ≥ 80 Pa,
corresponding to ≥ 24 m/s with an air density ϱ 1.2 kg/m3,

Material

aluminium, sheet steel (galvanized)

Nennweiten (mm)

100, 125, 140, 150, 160, 180, 200, 224, 250, 280, 300, 315, 355, 400, 450, 500, 560, 600, 630, 710, 80, 800

order example

SRP+DN+length (m)

Standard length (mm)

2000, 3000

duct box hood

YHF3000, for duct length up to 3 m

Category: Ducts.
  • Technical data

 

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