SDR • Rectangular ducts

• Rectangular ducts type SDR are used for air supply and exhaust in ventilation and air conditioning systems

• Galvanized steel

• Minimum pressure of -750 Pa to obtain class C et D
  
• Maximum pressure of 2000 Pa to obtain class C et D
• Max temp. of 70°C
• Galvanized steel Z275 with zinc layer of 275 g/m² according EN10.142 und EN 10.143
• Zinc Layer with average thickness of 20µ
• Caution! Due to the fact that rectangular ducts are manufactured in different badges, colour difference can occur
• Standard airthightness class C according to EN 12237 determined by the mounting on the construction site

• 150 - 700 mm: 0,8 mm with profil C20
• 701 - 1000 mm: 0.8 mm with profiel C30
• 1001 - 2000 mm: 1 mm with profiel C30

• Aluminium tape, type ALUTAPE 40, ALUTAPE 40S PREMIUM or cold shrinking tape, type PSB, type ASP
  
• Sliding cleats, type SL
  
• Screw clamps, type SKC
• Gasket tapes, type GAS
  
• Version with airthightness class D available upon request

• SDR, 400 x 250 mm AxB

Explanation:

SDR = Duct type L= 1.5m

400 = Dimension A

250 = Dimension B