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ST • Spiral Duct
- Spiral Duct
- Galvanized steel
- 3 Metre Length
Accessories
V • Male Connector SPLIT RING • Split Ring OBDC • Suspension Ring Tek Screw • Self Drilling Screws VF • Female Connector BF90 • 90° Segmented Bend B9 • 90° Pressed Bend BF45 • 45° Segmented Bend B4 • 45° Pressed Bend FT • Fabricated Tee Piece D • End Cap T • Pressed Tee Piece IL • Flanged Spigot FB • Flat Boot KDK • Single blade damper unitCircular spiral duct with standard length of 3M, spiral wound tube rolled from prime steel (certified) hot dipped galvanised, with flat folded joint to obtain rigidity and airtightness.
Structural strength & performance to DW144 classes A, B, C and BS EN 12237 A, B, C.
The airtightness class can also determined by the installation.
Application
- Used for air supply and exhaust in ventilation and air conditioning systems
Material
- Hot dip galvanized steel
Specifications
- Negative pressure -750 Pas to BS12237
- Positive pressure 2000 Pas to DW146
- Max temp. of 70°C
- Hot dipped Galvanized to BS EN 10346 G140/275
- Zinc Layer with average thickness of 20µ
- Caution! Due to the fact that spiral ducts are manufactured in different batches, colour difference can occur
Accessories
- Male Connector V
- Split Ring SPLIT RING
- Suspension Ring OBDC
- Self Drilling Screws SDS
Order example
- ST-250
Explanation:
- ST = Duct type L= 3m
- 250 = Diameter of the duct
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