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Biosafety Inflatable Airtight Door
Cigeair
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Engineered specifically for environments demanding absolute atmospheric containment, the inflatable airtight door is mainly used in rooms with airtightness requirements in high-level biosafety laboratories (BSL-3, BSL-4, ABSL-3, ABSL-4), which can solve the problem of door airtightness. When handling critical pathogens or maintaining strict isolation, standard barriers are insufficient; this specialized pneumatic system provides an impenetrable seal that facility managers can rely on to protect both personnel and the surrounding environment. To accommodate diverse architectural layouts and security protocols, the inflatable airtight doors are divided into single-airbag and double-airbag inflatable airtight doors, among which the double-airbag inflatable airtight doors have the on-site airtightness self-test function. This allows operators to instantly verify seal integrity before commencing hazardous procedures, ensuring zero leakage risk. The working principle is: when the door is opened, the inflatable seal is deflated and contracted in the groove; and when the door is closed, the inflatable seal inflates and expands to create a tight seal between the door and the door frame while the door is locked tightly. The physical construction is exceptionally resilient; the inflatable airtight door adopts all stainless steel seamless welded structure, offering a smooth, cold metallic surface with excellent airtight performance, and resistant to formaldehyde, vaporized hydrogen peroxide, gas chlorine dioxide and other disinfectants. It can be used independently or in combination, enjoying such features as single door control, multiple-door interlocking, safe and reliable operation. |
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Meeting the most rigorous international containment standards, our biosafety pneumatic sealing system undergoes stringent testing to validate its mechanical and structural capabilities. The following metrics demonstrate the precise engineering dedicated to maintaining absolute environmental control:
1. Structural pressure resistance: ≥2500Pa; ensuring exceptional physical integrity under extreme differential pressures within the facility.
2. Inflation and deflation time of the inflatable sealant: ≤ 5s; facilitating rapid personnel access without compromising strict containment protocols.
3. Inflation and deflation times of the inflatable sealant: ≥ 10000 times; guaranteeing long-term operational stability without bursting or leaking during high-frequency daily use.
4. Airtightness: Keep an airtight space airtight under the pressure of +500Pa, with the leakage rate <0.25% vol/h; delivering absolute atmospheric isolation for critical high-risk zones.
5. Safety redundancy: Both sides of the airtight door are equipped with E-stop button and manual air release valve, which can effectively avoid the airtight door opening failure due to electrical or gas circuit failure; prioritizing human safety in emergency scenarios.
6. Material thickness: The thickness of the stainless steel plate of the door body is not less than 2.0 mm, with firm structure and the structural stress resistance of 22,500Pa; providing a heavy, unyielding barrier against physical impacts.
7. Corrosion resistance: The product is made of high-quality stainless steel, resistant to disinfectants, cleaning agents and acids, alkalis and other chemical reagents; ensuring the surface remains pristine and easy to sterilize.
8. Interlocking mechanism: An electromagnetic lock is equipped to realize double door interlocking function; preventing simultaneous breaches in airlock configurations.
9. Access management: The access control password device can be set according to the user's requirements, offering flexible security integration for restricted zones.
To further minimize facility downtime and enhance operational security, the system incorporates advanced maintenance and safety features:
1. The electrical interlocking device box is fully sealed and can be repaired online, allowing technicians to perform diagnostics without disrupting the room's containment status.
2. E-stop button and manual air release valve are equipped, enjoying higher safety standards and preventing any risk of personnel entrapment during power outages.
3. Double-airbag inflatable airtight door has the on-site airtightness self-test function, empowering facility managers to verify seal integrity instantly and confidently.
4. Non-standard products can be customized, ensuring that unique architectural dimensions and specialized access requirements are perfectly accommodated.
At the core of its containment capability, the biosafety airtight door (hereinafter referred to as “airtight door”) mainly consists of the heavy-duty door frame, the precision-engineered door leaf, the resilient inflatable seal, and the highly responsive inflatable/deflatable control system, where the inflatable seal is embedded in the groove of the door leaf frame. The working principle is remarkably efficient and reliable: when the door is opened, the inflatable seal is deflated and contracted in the groove, emitting a faint, controlled hiss as the air evacuates, allowing the heavy steel door to glide open smoothly; and when the door is closed, the inflatable seal inflates and expands to create a tight seal between the door leaf and the door frame while the door is locked tightly. This dynamic pneumatic action actively compensates for any microscopic surface irregularities, guaranteeing an impenetrable barrier against airborne pathogens.
Leveraging advanced manufacturing techniques, the structural framework utilizes a proprietary seamless internal welding process. This eliminates microscopic crevices where biological contaminants might otherwise accumulate, providing a visually flawless finish that is exceptionally easy to sterilize. The critical inflatable seal is made of high-density corrosion-resistant material, which is rigorously tested to be fully resistant to formaldehyde, vaporized hydrogen peroxide, gas chlorine dioxide and other harsh disinfectants frequently utilized in decontamination cycles. Offering exceptional architectural flexibility, it can be used independently or in combination, enjoying such features as single door control, multiple-door interlocking, safe and reliable operation. Designed for the most demanding environments, the product is widely used in high-level biosafety laboratories, disinfection room, isolation room and other critical health and safety fields where absolute atmospheric isolation is non-negotiable.
Our engineering team has meticulously refined every aspect of this containment system to deliver superior performance and ease of use:
● Enhanced Containment: Features an inflatable high-density sealing strip, with stronger sealing performance that dynamically fills gaps to prevent microscopic particle leakage.
● Clear Observation: Equipped with a flush-mounted stainless steel disc type viewing window, allowing personnel to safely monitor the interior environment visually without compromising the isolation barrier.
● Operational Security: Integrates intelligent interlocking to avoid wrong operation, ensuring that multiple access points cannot be breached simultaneously during critical procedures.
● Streamlined Integration: Engineered with a door frame with matching framework design for easy installation, significantly reducing onsite labor and facility downtime during setup.
● Optimized Geometry: Incorporates a specialized round corner design of the door leaf for better airtight effect, eliminating sharp angles where stress concentrations or seal failures typically occur.
To assist facility engineers and procurement specialists in their planning, the core operational specifications are detailed below. These metrics reflect the system's capability to maintain rigorous isolation under continuous daily use:
Power supply: Single-phase AC power supply 220V/50HZ
Operating ambient temperature: -30°C to 50°C; relative humidity: less than 90%
Inflation pressure: 1.5KG/cm2; inflation time: <5s; deflation time: <5s, no blasting and gas leakage phenomenon after repeated inflation and deflation for more than 10000 times.
