Suppliers of cool air
blowers, high volume air ventilators, air blower motors, pneumatic
blowers, compressed air blowers, suction pressure blowers, air blower
compressores, high pressure axial fans, propeller fans, axial prop
fans, industrial fan motors, big industrial fans, large industrial
ventilators, industrial blower systems, explosion proof ventilation
fans, rooftop fans and ventilators, shop fans, building ventilation
fans. Industrial process ventilation
fans and utility blowers, OEM blower / fan wheel blades, compact
backward inlined and radial blowers and fan ventilators. Quick ship of
centrifugal and axial aluminum and steel centrifugal pressure blowers
and tubeaxial / vaneaxial fan ventilators.
Industrial blowers, fans and ventilators, high temperature blowers,
high pressure fans and blowers. Sales of centrifugal and axial process
fans, blowers and ventilators.
fan blower ventilator pressure industrial centrifugal axial
explosion proof high pressure temperature Buffalo Twin City Greenheck
Northern Canadian Chicago Aerovent TCF Canada NYB New York Garden City
Gas Engineering American Coolair ILG
Distributors of industrial fans, blowers and ventilators: high pressure
blowers, high temperature fans and high air capacity ventilators,
stainless and other alloy construction, explosion proof blowers. Quick
delivery of packaged blowers and fans, fan / blower wheel blades.
The concept of venting smoke and heat was first outlined by Industrial
Risk Insurers (IRI). Use of powered ventilation could eliminate the
problems experienced with gravity vents. Specially designed roof
mounted exhaust fans would mechanically vent heat and smoke under
emergency fire conditions.
Buffalo Fan Co. engineers various models of Heat and Smoke Removal
Power Roof Ventilators. These PRVs are especially designed, built and
proven by independent test to meet the need of venting hot gases and
smoke in the event of fire in commercial and industrial buildings, such
as factories, warehouses, parking garages, shopping malls and
Type HS PRVs reliably extract large volumes of hot gases and smoke
regardless of building configuration, location and weather conditions.
They withstand high temperatures for long periods of time.
A reliable ventilation system that can operate during a fire is both
vital and essential. It prevents smoke logging, allows people to escape
quickly, minimizes damages to property and contents and enables firemen
to attack the fire without hindrance. These power roof ventilators have
the added advantage of providing normal day to day ventilation and in
many cases can also be fitted with duct work for use in multi storey
In addition to the reliability and effectiveness of this powered
ventilation concept, the use of HS PRVs to vent heat and smokes has
these specific advantages:
* It is not dependent on air temperature differential or wind direction
and velocity to create air movement.
* It does not rely on heat itself to activate the system. Smoke
detectros and water-flow devices also may be utilized.
* It provides for normal ventilation needs of the building as well as
for emergency use as a vital component of the fire protection system.
* There is ususally a substantial cost saving in the purchase and
installation of the dual purpose system.
* Maintenance cost for building and equipment is frequently reduced.
* The system can be effectively used in multi storied and below grade
* Reliability of operations is assured because powered ventilators are
in daily use and receive regular inspection and maintenance.
The unique Type HS power roof ventilators provide a solution for
emergency heat and smoke venting that is dependable under the most
All critical components of HS PTV that exposed to the airstream are
ferrous construction to withstand high temperature conditions. These
heavy gauge materials prevent warping of fan parts and malfunction at
high temperatures. This also insures years of trouble-free service in
normal daily operation of the PRV.
The wind shroud is made of galvanized steel; an exterior finish coat of
epoxy can be specified. Painted parts are coated with epoxy to provide
a protective coating rated excellent for hardness, impact
resistance, adhesion and chemical resistance.
Belt and bearings are protected from the air stream by enclosing them
in a ventilated tube. Design of HS fan incorporates a heat
slinger/impeller. It isolates the fan bearings from damaging heat and
draws cooler outside air through the motor compartment and over the
belt and bearings. A spring loade, fusible link activated device
automatically opens dampers when temperature at the fan reaches 165 F.
Thei enables the fan to function as a gravity ventilator prior to
A safety disconnect switch is mounted to the PRV housing. This feature
protects maintenance personnel from an accidental fan start when the
unit is being serviced.
Type HC Power Roof Ventilators have been tested to operate:
- conituously at 650 F;
- 3 Hours at 800 F;
- 1.5 Hours at 1000 F;
- 1/2 Hour at 1,200 F.