Sam Products, an ISO 9000: 2001 organisation, offers a Pass Box for Clean Rooms. The pass box is installed on the wall between a clean room and any other room. It is used for transfer of materials from and into the clean room without disturbing the clean room environment. This assists in preventing contamination of clean room without having to open room door by using interlocking type doors of pass box. The pass box has two doors at its extreme ends. One door opens in the clean room and other door opens in the other room. These doors are electrically interlocked so that any other door can be operated at a time. This avoids direct flow of air from the clean room to the other room or vice versa. This also restricts the need to open the clean room door frequently for transferring of materials, thereby achieving the aim of material transfer without disturbing the cleanliness level of the clean room. The pass box with air flow has an air velocity of 0.45 ±0.1 m/sec for air cleanliness level of ISO 5 (as per ISO 14644-1). Specifications: type of pass box – with/without air flow; materials of construction – commercial board with white laminates, mild steel sheets, galvanised sheets and stainless steel sheets; standard size – 24” x 24” x 24”; doors – aluminium glass door (except for SS); electrical –electrical interlocking of doors; and optional items – fluorescent/ultra violet light, filters – pre and terminal, and magnehelic differential pressure gauge. The company also manufactures other clean room related products like: air curtains, clean room garment cubicles, clean room modules, laminar flow tables, etc. It also undertakes turnkey projects to achieve clean room conditions and regular upgradation of products backed by strong after sales service.
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