Emergency
smoke exhaust systems are designed to remove smoke and heat from
buildings in the event of a fire. These systems play a crucial role in
increasing occupant safety and allowing rescue personnel to safely
enter burning buildings. Twin City Fan offers a full line of smoke and
heat fans capable of withstanding a minimum temperature of 500°F
for four hours or 1,000°F for 15 minutes. Our inline smoke and heat
fans are also available in a vertical roof mount configuration
featuring a discharge cap with butterfly dampers and an optional
fusible link designed to stay open in the event of a fire. Since July
1, 2003, equipment manufactured for operation in potentially explosive
environments has been required to comply with the European Directive
94/9/EC. This directive, commonly referred to as the ATEX Directive,
applies to all countries in the European Union (EU) and the European
Economic Area (EEA). The ATEX Directive is a collection of EU
directives outlining equipment installed and operated in potentially
explosive atmospheres. The ATEX directive coordinates various technical
and legal conditions throughout Europe to ensure a high level of safety
for the end-user by reducing the explosion risk through established
design methods. The European Committee for Standardization (CEN)
published EN 14986 as a standard specifically for the manufacture of
fans for use in hazardous areas. This standard is a guide specifically
for fan manufacturers to comply with the ATEX Directive.
The reversible propeller incorporates specifically engineered airfoil
sections and hub size for optimal efficiency and physical strength.
Alternate adjustable pitch propeller blades are turned 180 degrees to
one another and a double orifice is attached to the fan panel.
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