BioAir Damper Valves
Control, Isolation, and Backdraft Damper Valves constructed from FRP in accordance with AMCA Standards
Damper valves are an essential accessory for most air treatment applications, critical for balancing airflows, preventing air from going in the wrong direction, and isolating equipment for maintenance or operation. BioAir is pleased to offer premium quality damper valves so that our customers have a single-source supplier for their air treatment equipment.
BioAir Solutions takes Quality Assurance and Control seriously. All our FRP Dampers are manufactured to strict Quality Control Standards in conformance with BioAir’s ISO 9001:2015 Quality Management Certification. The damper valves’ FRP fabrication meets ASTM D3982 and ASME RTP-1 standards, and all isolation dampers meet the AMCA leakage test requirements.
Damper Valve Types
Control Damper Valve (CDV-Series)
Control dampers are used for airflow balancing when full isolation or airflow stoppage is not required. They are often used to balance airflow from multiple ventilated sources.
Isolation Damper Valve (IDV-Series)
Isolation Dampers are used when there is a need to isolate a ventilated source or airflow from an adjoining portion of the system with “zero” leakage requirement. Isolation is achieved through increased fabrication tolerance between the damper blade and body, and the blade is equipped with a special corrosion-resistant EPDM seal to meet AMCA leakage test requirements.
Backdraft Damper Valve (BDV-Series)
Often referred to as Non-return Valves, backdraft dampers are used to prevent air from flowing in the wrong direction in the duct and are mostly used around the fans that are mounted in a duty/standby configuration.
Standard Construction
Resin
Isophthalic (structural) with premium epoxy vinyl ester (corrosion barrier). Also available in full vinyl ester or fire-retardant vinyl ester construction.
Damper Shaft Material
316 stainless steel.
Corrosion Protection
All material in contact with airstream is either FRP or 316SS.
Position Adjustment
Locking lever quadrant or motorized/manual actuator for Control and Isolation Damper Valves. Backdraft Damper Valves uses a lever with adjustable counterweight.
Flange Connection
Flanges could be manufactured to meet any flange standard. Standard flange thickness and bolt hole drillings are prepared to PS 15-69 Ducting Standard.
Bushing Material
Nylon
Shaft Seal
Viton
Available Sizes (Inner Diameter):
- Ø4 inch (Ø100 mm) to Ø20 inch (Ø500 mm) in 2 inch (50 mm) increments
- Ø20 inch (Ø500 mm) to Ø48 inch (Ø1200 mm) in 4 inch (100 mm) increments
- Ø56 inch (Ø1400 mm), Ø60 inch (Ø1500 mm), and Ø72 inch (Ø1800 mm)
- Custom sizes available upon request
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