A cleanroom ventilation system cannot function properly without a reliable network of ducts and dampers. These components act as the “breathing pathways” of the cleanroom, ensuring that clean air is distributed evenly and without contamination across the entire environment. Poor duct design or the use of unsuitable dampers can disrupt the room’s positive pressure and jeopardize GMP compliance.
Abadis Pasargad provides a complete solution by designing and installing customized ducts and dampers to guarantee standardized airflow in cleanrooms.
Why are ducts and dampers important?
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Uniform air distribution: preventing dead zones and particle accumulation. 
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Maintaining positive pressure and differential pressure between rooms. 
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Energy efficiency: optimized design to reduce pressure drop. 
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Extending HVAC system lifespan: minimizing excess load on air handling units. 
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Precise airflow control: adjustment and balancing with dampers. 
Features of Abadis Pasargad ducts
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Manufactured from galvanized sheets or stainless steel. 
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Complete sealing to prevent air leakage. 
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Thermal and acoustic insulation when required. 
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Customized design based on project drawings. 
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Washable and disinfectable for periodic cleaning. 
Types of dampers used
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Volume Control Dampers (VCD): regulating supply or exhaust airflow. 
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Fire Dampers: protection against fire and smoke spread. 
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Constant Pressure Dampers: maintaining pressure differences between rooms. 
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Back Draft Dampers: preventing reverse airflow. 
Real project experience
In a biotechnology project, improper duct design caused loss of positive pressure in certain rooms. The Abadis Pasargad engineering team redesigned the system and installed constant pressure dampers, completely solving the issue. The project then passed GMP audits without any objections.
Applications
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Pharmaceutical and vaccine production industries 
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Food and beverage industries with strict hygiene requirements 
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Manufacturing of sensitive medical devices 
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Electronics and semiconductor industries 
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Hospitals and research centers 
Why choose Abadis Pasargad ducts and dampers?
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Tailored design and implementation based on project requirements 
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Use of durable and hygienic raw materials 
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Full compliance with ISO 14644 and GMP standards 
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Installation, testing, and periodic maintenance services 
