Plain and flanged elbow ends
Plain ends suit the matching sleeve or connecting joint; flanged ends provide a bolted connection. The alternative diameters in the table must match the actual mating part.
PRODUCT / TECHNICAL DATA Cleanroom Ductwork & AccessoriesSpecifications / Configurations / Procurement
PRODUCT GALLERYST
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Cleanroom Ductwork & Accessories
Duct Elbows and Tees
Product specifications
| Brand | ST |
|---|---|
| Product type | Ventilation duct elbows, tees and transition fittings |
| Material options | Galvanized steel, stainless steel and carbon steel; other materials customisable |
| Standard sheet thickness | 0.5–2.0 mm; other thicknesses customisable |
| Elbow angles | 45° and 90° |
| Tee options | Reducing tee and welded tee |
| Transition options | Reducer and square-to-round transition |
| Other items shown | Extraction hood, spiral duct and welded tube |
| Connection forms shown | Circular connecting ends and flanged ends |
| Uses | Ventilation, dust extraction, air-cleaning and smoke-extraction duct systems |
| Customisation | Sheet thickness, diameter, connection type, shape, branch sizes and fitting lengths |
Customization availableSpecifications can be customized to your requirements.
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Specify the quantity and configuration in your inquiry.
Duct Elbows and Tees connect changes of direction and branches in a ventilation or extraction network. Reducers and square-to-round transitions bridge different equipment openings, avoiding poorly matched joints where the duct route changes shape.
The range also includes extraction hoods, spiral duct and welded tube. Material, sheet thickness and connection details can be matched to the installation.
MODELS AND DIMENSIONS
Galvanized elbow size options
| Nominal diameter (mm) | Sheet thickness (mm) | Connection | Alternative diameter (mm) |
|---|---|---|---|
| Ø100 | 0.5 | Without flanges | — |
| Ø150 | 0.5 | Without flanges | — |
| Ø200 | 0.5 | Without flanges | Ø196 |
| Ø250 | 0.5 | Without flanges | Ø246 |
| Ø300 | 0.5 | Without flanges | Ø296 |
| Ø200 | 0.5 | Flanges at both ends | — |
| Ø250 | 0.5 | Flanges at both ends | — |
| Ø300 | 0.5 | Flanges at both ends | — |
| Ø400 | 0.6 | Flanges at both ends | — |
| Ø450 | 0.6 | Flanges at both ends | — |
| Ø500 | 0.6 | Flanges at both ends | — |
Diameter, sheet thickness, connections and shape can be customised.
MODEL DIFFERENCES
Which configuration fits the task
Bends, branches and transitions
An elbow changes direction, a tee creates a branch, and a reducer or square-to-round fitting changes the opening; selecting the fitting by its role avoids unnecessary transitions.
FITTING OPTIONS
A fitting for each change in the route
45° and 90° elbows
Change the direction of a duct run to follow the available installation space.
Reducing and welded tees
Connect a branch to the main run, with reducing tees joining different duct sizes.
Reducers and square-to-round transitions
Connect duct sections or equipment outlets with different opening sizes and shapes.
Extraction hood
Collect air at an extraction point and direct it into the connected duct.
APPLICATION ENVIRONMENTS
For connected ventilation and extraction routes
Building ventilation
Connect duct runs around ceiling obstructions and into branch routes serving separate spaces.
Equipment connections
Join circular and rectangular openings where ventilation equipment and the adjoining duct have different connections.
Local extraction points
Connect an extraction hood and its branch duct to the main extraction route.
Dust extraction and air cleaning
Link collection branches and changes in duct size to the associated dust-extraction or air-cleaning equipment.
Smoke-extraction duct routes
Form bends and branches in the specified smoke-extraction layout.
CUSTOM FITTINGS
Match the fitting to the adjoining duct
Opening sizes and direction
Match each connecting opening to the duct and select the required bend angle or branch direction.
Joint details
Coordinate flanges and connecting ends across the assembled run for consistent installation.
PROCUREMENT / INQUIRY
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