Pass-through Chamber

A pass-through chamber is an integral component of barrier enclosure systems designed to facilitate the safe transfer of materials, tools, or samples between the interior and exterior environments without compromising the enclosure's integrity. It typically features interlocking doors or hatches that prevent simultaneous opening, ensuring that contamination is contained within the enclosure. This component is critical in applications requiring strict environmental control, such as cleanrooms, biological safety cabinets, or hazardous material handling systems. The chamber is constructed from materials such as stainless steel (grades 304 or 316L), with tempered glass viewing panels and silicone gaskets for sealing. It is available in a range of internal dimensions (W×H×D) from 300 to 1200 mm, with door openings from 200 to 800 mm. Load capacity ranges from 50 to 500 kg. Leak rate is ≤0.01 Pa·m³/s (ISO 10648-2), ensuring high containment integrity. The operating temperature range is -40 to 85°C, with relative humidity up to 95% non-condensing. Ingress protection is rated IP54 to IP65 (IEC 60529), and surface finish ranges from 0.4 to 1.6 μm Ra (ISO 4287). Electrical supply is 220–380 V AC, 50/60 Hz, three-phase, with power consumption between 0.5 and 2.5 kW. The unit weight varies from 150 to 800 kg depending on size and material. All specifications are reference ranges; verify model-specific values with the manufacturer. The chamber is designed for integration into barrier systems, with options for custom sizes and reinforced frames for larger openings. It includes interlocks and lighting as standard features. For corrosive media, 316L stainless steel is recommended. Electropolished surfaces are available for cleanroom use. The chamber is not a standalone device but a component that must be properly installed and validated within the overall containment system. Always confirm compliance with relevant standards and application requirements before procurement.

The pass-through chamber operates on an interlock mechanism where only one door can be opened at a time. Items are placed in the chamber from one side, the door is closed and sealed, and then the opposite door can be opened to retrieve the items. This sequential operation maintains the barrier between environments, preventing cross-contamination and preserving controlled conditions. The interlock ensures that both doors cannot be opened simultaneously, which is critical for maintaining containment integrity. The chamber's sealing system, including silicone gaskets, ensures a leak-tight enclosure when doors are closed. The transfer process is manual, with the operator placing items inside and closing the door before opening the other side. This principle is fundamental to applications requiring strict environmental control, such as cleanrooms or hazardous material handling.