Biosafety Isolation Damper
An electric (or manual) airtight damper for isolating airflow in high-risk environments and for sealing HVAC ducts during room decontamination and BIBO filter change-out.
Overview
The Fenggu Biosafety Isolation Damper is an electric (or manual) airtight damper for isolating airflow in high-risk environments — nuclear plants and BSL-3/4 laboratories — and for sealing HVAC ducts during room decontamination and BIBO filter change-out. Available as an airflow-shutoff or airflow-regulating type, and in round or square bodies, it uses a high-density EPDM seal for strong corrosion and oxidation resistance and an integral welded structure with minimal seams for low leakage risk.
Sizes are fully customisable — up to Ø1200 mm round or 2500 × 1200 mm square — and an explosion-proof version is available.
Key Features
- Airflow-shutoff or airflow-regulating type; round or square body
- High-density EPDM seal — strong corrosion and oxidation resistance
- Integral welded structure with minimal seams for low leakage risk
- Fully customisable size up to Ø1200 mm round / 2500 × 1200 mm square
- Electric or manual actuation
- Optional explosion-proof configuration
Technical Parameters
| Leak rate | ≤ 0.25% vol/h @ ±2500 Pa (initial) | Cycle endurance | ≥ 5000 open/close, no leak for ≥ 60 min at ±2500 Pa |
|---|---|---|---|
| Max round size | Ø1200 mm | Max square size | 2500 × 1200 mm |
| Seal | High-density EPDM | Options | Electric / manual, explosion-proof |
Fenggu vs. Industry Benchmark
| Metric | Fenggu FG-LOCK-BCV | Typical industry requirement |
|---|---|---|
| Leak rate @ ±2500 Pa | ≤ 0.25% vol/h | ≤ 0.5% vol/h common |
| Durability | 5000 cycles, still bubble-tight | Often unrated |
Applications
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