Impulse Ventilation System
The Impulse Ventilation System
Fans -
PVEs range of impulse fan casings
are manufactured from 3mm
mild
steel, roll formed and automatically welded. Our special jointing
arrangement means that no flanges are required to fix attenuators
ensuring a lower profile unit and greater traffic freedom within the
car park.
Impellers - PVE impulse fans are all fitted with adjustable
pitch impellers of true aerofoil shape. Blades are manufactured from high quality
pressure die cast aluminium alloy (LM6). All impeller blades are factory set
to ensure optimum aerodynamic performance and assembled impellers have blades
locked and pinned as
an extra safeguard under high temperature conditions.
Motors - For ease of maintenance and easy replacement worldwide
PVE use totally enclosed metric frame motors to IP 55. Standard
high temperature motors designed and tested for the specific application.
Our motors are designed especially for use under normal day-to-day
ventilation
and will if required run continually in this mode switching to
smoke clearance mode when conditions within the parking facility
dictate for
use at 200°C or 300°C for set length of times.
Motors are of cast iron frame construction with windings of class H insulation. Temperature resistant flying leads are brought out of the casing and connected prior to testing and despatch to a high temperature isolator featuring a lockable On / Off feature.
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