High-speed doors play a key role in maintaining clean operations in pharmaceutical plants. They are designed to address facility needs for environmental control, productivity and safety (as well as cleanliness). In cleanroom applications, they are used to maintain correct room pressures, air circulation rates and optimal operating efficiency and to prevent cross-contamination. High operating speeds are critical to minimize air infiltration when staff members enter or exit.
Cleanrooms are classified into 2 categories of air pressurization, positive and negative air pressure cleanroom HVAC (Heating, Ventilating and Air Conditioning) systems. Positive air pressure cleanrooms systems are normally used for Electronics, Aerospace, Optics, Military and Defense applications, and Research, etc., where the air escaping from doors, ceilings, or walls, due to the positive air pressure, is not hazardous and not creating safety or health concerns. The amount of particulate cleanliness required determines the cleanroom design concept, amount of air filtration, CFM (cubic feet per minute) and total HVAC. Our positive pressure cleanroom designs are based on years on experience in air pressurization in a vast variety of applications.
Positive Air Pressure Cleanrooms normally operate in an air pressure range of 0.02 in. to 0.2 in water column (H20). Positive air pressure means the cleanroom or rooms are "pumped up” with more filtered air then the surrounding space outside the cleanroom(s). There are different cascading levels of positive air pressure from the cleanest rooms at the highest pressure down to the gown room/or airlock room.
The cleanroom classification needed depends on specifications for operations to be conducted within. Research in your specific field will probably provide a specification or at least a general guideline.
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