Biosecurity Inflatable Sealed Door
- Biosafety Inflatable Seal Door suitable for high-level biosafety laboratories such as BSL-/4 and ABSL- 3/4, meeting high airtightness requirementsAvailable in single-bladder and dual-bladder configurations. The dual-bladder modelis equipped with on-site airtightness self-test function.
Working principle: After the dooris closed, the inflatable sea strip is inflated and expanded to form a tight seal between the door and the frame: before thedoor is opened, the seal strip automatically deflates and retracts to avoid wear.
Constructed with ful stainless steel seamless welding, it is resistantto corrosion by disinfectants such as formaldehyde, vaporized hydrogen peroxide, and chlorine dioxide. It supports single-door independent control or multi-door interlocking, ensuring safety and reliability.
Product Description
Product Introduction
The biosafety airtight door is a special airtight protection equipment developed for high-risk biological protection scenarios. It serves as a core isolation barrier for biosafety laboratories, medical isolation areas, sterile pharmaceutical workshops and other sites. It is mainly applicable to high-level biosafety laboratories such as BSL-3, BSL-4, ABSL-3 and ABSL-4, and is also widely used in places with strict requirements on air tightness, cleanliness and biosafety, including infectious disease isolation wards, disinfection and sterilization rooms, biological preparation production workshops, and emergency nucleic acid detection cabins.
Its core function is to accurately block the diffusion and leakage of pathogenic microorganisms, viral aerosols, harmful biological spores and toxic gases, and stably maintain the positive and negative pressure gradient of regional environments. It completely isolates clean areas from contaminated areas, which not only protects the safety of experimental operators and medical staff and avoids biological infection risks, but also prevents external environmental pollution caused by experimental operations. It ensures the compliance and safety of the whole process of biological experiments, pharmaceutical production and medical isolation, acting as the final core protection barrier for high-level biosafety scenarios.
At present, mainstream biosafety airtight doors are divided into two categories: inflatable sealing type and mechanical compression type. Among them, the inflatable sealing type has become the preferred choice for high-level biosafety laboratories due to its adaptive sealing, intelligent control and zero-leakage advantages. The equipment is composed of an integrated door frame, high-strength door leaf, special inflatable sealing components, intelligent inflation and deflation control system, mechanical locking mechanism and intelligent interlocking system, realizing automatic sealing, opening, closing and detection to meet high-standard biosafety management and control requirements.
Technical Features
1.Multiple Closed-Loop Airtight Sealing for Zero-Leakage Protection
Adopting the industry-leading multiple composite sealing system, it thoroughly solves the gap leakage problem of traditional doors and windows. The door leaf is embedded with high-quality EPDM inflatable sealing strips, which feature excellent aging resistance, corrosion resistance and elastic resilience, and can adapt to the corrosive environment of various disinfection gases. Equipped with a dedicated inflation and deflation control system, the equipment realizes automatic operation: after the door leaf is completely closed, the system automatically inflates, and the sealing strip expands rapidly to fill tiny gaps, corner voids and assembly tolerance gaps between the door frame and door leaf; before door opening, the air is automatically discharged and the strip retracts into the door leaf groove to avoid wear and scratch damage.
High-grade models are equipped with a dual-airbag sealing structure, which realizes main pressure-bearing sealing and auxiliary dust-proof and anti-leakage sealing. It supports on-site independent air tightness detection and real-time sealing status monitoring. All corners adopt integrated vulcanization seamless processing technology, and hardware penetration holes and pipeline openings are specially sealed and blocked without any leakage channels. It can stably withstand positive and negative pressure differences of 100Pa and above, fully complying with ISO 14644 cleanliness standards and air tightness requirements of high-level biosafety laboratories.
2.High-Strength Integrated Structure with Stable Deformation Resistance
The door frame and door leaf are made of thickened high-strength stainless steel with integral full-weld forming technology, featuring no splicing gaps or welding defects. The structure has high rigidity and excellent bearing capacity, which can resist long-term positive and negative pressure difference loads and air impact in laboratories, and eliminate sealing failure caused by door leaf deformation and door frame loosening. Compared with ordinary clean doors, the door body has greatly improved wind pressure resistance and deformation resistance, maintaining long-term stability without deformation or warping to ensure consistent fitting of the sealing structure.
Equipped with a multi-point synchronous mechanical locking mechanism, the door leaf is tightly pressed by mechanical tension after closing, which assists the inflatable sealing system to eliminate leakage risks under high pressure differences. The dual guarantee ensures sealing stability, adapts to long-term and high-frequency opening and closing scenarios, and greatly extends the service life.
3.Intelligent Automatic Control with Safe and Linked Operation
Adopting an intelligent electrical control system, the equipment operates fully automatically without manual intervention. It supports automatic inflation after door closing, automatic deflation before door opening, real-time sealing status monitoring and automatic fault alarm. The system accurately controls inflation pressure to maintain constant sealing tension of the strip, avoiding aging caused by over-inflation and leakage caused by under-inflation.
It is equipped with professional door interlock function, realizing independent single-door control and multi-door linkage interlock. Adjacent airtight doors cannot be opened simultaneously, which effectively prevents cross-contamination caused by pressure difference imbalance and air flow communication, and stably maintains the regional pressure gradient. Optional functions including access control linkage, delayed opening and closing, acousto-optic alarm and data traceability can be connected to the laboratory intelligent management system to realize real-time operation status monitoring and data retention, meeting the traceability management specifications of biosafety laboratories.
4.Corrosion Resistance and Easy Cleaning for Harsh Disinfection Environments
The stainless steel surface of the door body is precisely polished with a smooth and dense finish without dead corners or dust accumulation grooves, which is not easy to attach bacteria, viruses and dust pollutants and facilitates daily cleaning. The core sealing strip is made of modified EPDM material, which resists corrosion from various laboratory common disinfectants and disinfection gases such as formaldehyde, vaporized hydrogen peroxide and chlorine dioxide. With excellent oxidation resistance, acid and alkali resistance and aging resistance, it can adapt to high-frequency disinfection operations without hardening, cracking or failure in long-term use.
The overall structure has no sanitary dead corners, adapting to the harsh biosafety operating environment with high temperature, high humidity and frequent strong disinfection. It can maintain long-term cleanliness and air tightness, in line with the cleanliness control standards of biosafety laboratories and sterile workshops.
5.High-Safety Protection Design with Excellent Compliance
Designed in strict accordance with the construction specifications of high-level biosafety laboratories, the equipment is equipped with a complete safety protection mechanism. It can automatically lock and maintain the sealed state in case of power failure or fault to prevent leakage of biological factors under emergency conditions. An emergency manual opening and closing device is configured for quick unlocking and opening in emergencies, balancing safety and emergency accessibility.
The door operates stably with low noise and no impact vibration, avoiding disturbance to laboratory air flow and pressure balance. All accessories adopt special biosafety-grade materials with no harmful substance precipitation and no environmental pollution, which is fully applicable to high-risk scenarios such as pathogenic microorganism experiments and biological preparation R&D and production, featuring leading compliance, safety and stability.
6.Wide Adaptability and Convenient Installation and Maintenance
The product supports multiple structural forms such as single and double doors, with customizable sizes and configurations according to on-site space, pressure difference requirements and protection levels. It can be used independently or combined to build a partition protection system. The standardized modular design simplifies installation procedures and adapts to new and renovated biosafety projects. Meanwhile, the equipment has a low failure rate with detachable and replaceable core components, enabling simple daily maintenance and effectively reducing later maintenance costs and shutdown losses.
