Inflatable-Seal Airtight Door
The high level of sealing required by BSL-3/4 and ABSL-3/4 rooms during decontamination and fumigation — an inflatable gasket forms a strict airtight seal and locks the door in one motion.
Overview
The Fenggu Inflatable-Seal Airtight Door provides the high level of sealing required by BSL-3/4 and ABSL-3/4 rooms during decontamination and fumigation. An inflatable gasket set into the door leaf deflates into its groove when the door opens and inflates against the frame when closed, forming a strict airtight seal that simultaneously locks the door. The high-density EPDM gasket resists formaldehyde, vaporized hydrogen peroxide and chlorine dioxide, so the door can be exposed to the fumigants used in high-containment work.
A fully sealed electrical interlock box (serviceable online), emergency-stop buttons and manual pressure-relief valves on both sides, plus on-board airtightness self-check, make the door safe and reliable; single-door or multi-door interlock configurations are available.
Key Features
- Inflatable gasket forms a strict airtight seal and locks the door in one motion
- High-density EPDM resists formaldehyde, VHP and chlorine-dioxide fumigation
- Fully sealed electrical interlock box, serviceable online
- Emergency-stop buttons and manual pressure-relief valves on both sides
- On-board airtightness self-check
- Single-door or multi-door interlock configurations
Technical Parameters
| Structural pressure resistance | ≥ 2500 Pa | Airtightness | < 0.25% vol/h leak @ +500 Pa |
|---|---|---|---|
| Seal inflate/deflate time | ≤ 5 s | Seal cycles | > 10,000 |
| Door-leaf plate | ≥ 2.0 mm stainless steel | Working environment | −30 to +50 °C, < 90% RH |
| Power | 220 V / 50 Hz | Inflation pressure | 1.5 kg/cm² |
Fenggu vs. Industry Benchmark
| Metric | Fenggu FG-LOCK-GDI | Typical industry requirement |
|---|---|---|
| Leak rate @ +500 Pa | < 0.25% vol/h | ≤ 0.5% vol/h common |
| Seal durability | > 10,000 inflate/deflate cycles | Often unrated |
| Structural resistance | ≥ 2500 Pa | ≥ 500 Pa typical |
Applications
Request a datasheet or quotation
Tell us your containment level, door size and interlock requirements, and our engineers will prepare a configuration and quotation.
Contact Our Team