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Fibrous acoustic material must be separated from the air path.
The film liner adds a continuous barrier beneath the perforated facing.
STJH-RECTANGULAR-ELBOW-SILENCER-90FL-FILM
Rectangular Elbow Silencer 90-Degree Film-Lined
An acoustic elbow with an added barrier around its fibrous absorber.
- The liner adds a barrier between the absorber and moving air.
- An integral turn reduces the need for a separate elbow and straight attenuator.
Product Introduction
A thin protective film separates the glass-fibre fill from the perforated air-facing metal. The curved passages still turn the duct through a right angle, while the film-lined construction addresses applications that require additional separation of the media from the airstream.
Key Features
- The liner adds a barrier between the absorber and moving air.
- An integral turn reduces the need for a separate elbow and straight attenuator.
Technical Parameters
| Turn | 90 degrees |
|---|---|
| Duct Shape | Rectangular |
| Acoustic Construction | Film-lined dissipative |
| Absorber Material | Acoustic glass fibre |
| Air-Side Protection | Film liner behind perforated metal |
| Baffle Form | Curved aerodynamic splitters |
| Outer Material | Galvanized sheet steel |
| Joining Options | Flanges or slip connection |
| Operation | Passive attenuation |
| Customization | Available for the intended air cleanliness needs and elbow geometry. |
Applications
- Clean supply duct bends
- Return systems requiring media separation
Solutions for Your Application
Adding a separate attenuator would extend the duct route.
The lined acoustic elements occupy the bend itself.
Available Options
- Film liner specification
- Stainless steel construction
- Access provision
Planning a Rectangular Elbow Silencer 90-Degree Film-Lined specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
