Shanghai Queli Biotechnology Co., Ltd. independently developed biological airtight doors include mechanical clamping type and inflation sealing type. These doors offer excellent airtightness, with high-density EPDM seals that withstand corrosion from disinfectants such as formaldehyde, gasified hydrogen peroxide, and chlorine dioxide gas. They can be used individually or in sets, featuring single-door control or multi-door interlocking capabilities. Known for their safety and reliability, they are widely applied in high-level biosafety laboratories, disinfection rooms, isolation rooms, and other health and safety sectors.

Mechanical Clamp-Type Biological Airtight Door

Product Features:

Door frames and door panels fully welded as a single unit.

2. The sealing strips are made of EPDM material, offering superior resistance to corrosion, oxidation, and acid and alkali; they have a long service life.

3. The door opening mechanism features either a disc-type wheel or a straight-bar handle, with a 45° opening angle. It employs a mechanical structure internally for easy and effortless operation. Maintenance is simple, and risks are minimal.

4. The windows are made of 12mm thick tempered glass, featuring a circular protective structure for safety, elegance, and ease of cleaning.

5. The clamping mechanism utilizes a linkage design, achieving simultaneous clamping at six points, ensuring uniform distribution of force at the clamping points and excellent sealing performance.

Technical Benefits:

The door frame and door leaf are made of 304 stainless steel, with a thickness of 3mm and fully welded.

2. Window thickness not less than 12mm.

3. The mechanical clamping mechanism uses multi-point clamping (with not less than 6 clamping points to ensure the stability of the mechanism).

4. Seals are made of high-density material, featuring built-in interlocking and alarm signal lines on the door.

5. Sealing: Initial positive and negative pressure test above 1500 Pa, with a leakage rate not less than 0.1% of the sealed cavity volume.

Section 2: Inflatable Sealed Biological Airlock Door

The inflatable seal door is mainly composed of the door frame, door leaf, inflatable sealing strip, and air inflation/exhaust control system, with the inflatable sealing strip embedded in the groove of the door leaf frame. Its working principle is as follows: when the door is opened, the inflatable sealing strip releases air and shrinks within the groove. When the door is closed, the inflatable sealing strip inflates, creating a tight seal between the door leaf and the door frame, while the door is securely locked.

Technical Benefits:

Sealability: Initial positive and negative pressure test at 2500Pa, leakage rate not less than 0.1% of the volume.

2. The door frame and door leaf are made of 304 stainless steel, with the door frame thickness not less than 2.5mm and the door leaf thickness not less than 1.5mm.

3. The overall process uses a full welding structure to ensure the door surface flatness is no more than 1mm within a 1-meter range.

4. Air-filled sealing strips imported from Europe, size: 32*16mm, material: high-density EPDM.

5. Reserved signal lines for control system door status, pressure alarm, etc.