Inflatable sealing
The seal works at the closure interface to limit air passing around the blade when the branch is isolated.
PRODUCT / TECHNICAL DATA Cleanroom Ductwork & AccessoriesSpecifications / Configurations / Procurement
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Cleanroom Ductwork & Accessories
Biosafety Airtight Damper
Product specifications
| Brand | ST |
|---|---|
| Body material | 304 or 316L stainless steel |
| Operating pressure | −1000 to +1000 Pa |
| Leakage | ≤1.0 Pa·m³/h |
| Opening time | ≤30 s |
| Actuation | Electric or pneumatic; manual emergency operation |
| Seal configuration | Inflatable seal |
| Power supply | 220 V, 50 Hz |
| Status indication | Red: closed; green: open |
| Control | Touch control; ventilation interlock; timeout alarm |
| Duct format | Circular or rectangular |
Customization availableSpecifications can be customized to your requirements.
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Biosafety Airtight Damper isolates a ventilation branch during planned shutdown, maintenance or a controlled decontamination sequence. The inflatable seal closes the duct boundary while the position indication helps operators see whether the damper is open or closed.
Electric and pneumatic actuation options allow the isolation point to follow the ventilation controls, with manual emergency operation available in the listed assembly.
FEATURES AND BENEFITS
How it helps
Visible operating state
Red and green indications distinguish closed and open positions; the timeout alarm draws attention to an incomplete movement.
Ventilation interlock
Linking damper position to the ventilation sequence helps avoid operating the branch in the wrong isolation state.
APPLICATIONS
Where it is used
Containment ventilation branches
Use at isolation points in laboratory or pharmaceutical ductwork designed around a sealed shutdown procedure.
Service isolation
Separate a ventilation section while connected equipment is maintained or undergoes a compatible treatment sequence.
SELECTION GUIDANCE
Choosing the configuration
Actuation choice
Electric operation uses the electrical control supply; pneumatic operation needs a matching air supply and control circuit.
Duct interface
Choose the circular or rectangular body and stainless steel grade to match the duct, cleaning process and installed sealing arrangement.
PROCUREMENT / INQUIRY
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