Halton & Flamgard Pressure-Relief and Non-Return Dampers
Pressure dampers are used to control pressure levels in adjacent zones/areas. They are selected and installed to maintain a higher pressure than surrounding areas to prevent the ingress of hazardous gases. They are typically used in escape routes – fire fighting stairwells etc. – to assist in safe escape and to help the authorities deal with the emergency.
Backdraft dampers are used to prevent recirculation of ventilation air. Particularly useful as a low cost solution to prevent air recirculation through an idle standby fan of a duty and standby ventilation fan configuration.
CBD-01 – Heavy Duty Backdraught Damper
Flamgard type CBD-01 Backdraught Damper has been designed to give maximum efficiency under arduous conditions and is suitable for fitting with the air flow in one direction only.
Flamgard type CPR-01 Pressure Relief Damper has been designed to give maximum efficiency under arduous conditions and is suitable for the air outlets of electrical equipment rooms, control rooms and living quarters. These areas are maintained at a higher pressure than surrounding areas to prevent the ingress of hazardous gases. The differential pressure is usually 63 N/m² although this may be increased to provide a greater safety margin.