SCF
SCF jet fans are produced only in reversing operation version,
DN 315, 355, 400 mm.
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•
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•
•
•
•
•
•
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Efficient ventilation (air movement not only within the range of
air jet of the grilles
but within the whole cubature of the protected space),
Short response time in case of the fire,
Fast achievable, effective smoke removal in the whole cubature
of protected space,
Easy assembly,
Easy balancing and calibration,
More time-effective design and assembly on site,
Lower assembly costs (elimination of the ductwork and it's
equipment),
Lower operating costs (reduced power consumption due to lower
engine powers
and flexible operating modes),
Larger available room cubature (under the ceiling space), lower
ceiling height
possible,
Improved appearance of the protected space.
Jet fan (impulse) ductless ventilation systems are usually
applied for large volume spaces. Properly designed jet fan system
can be used for:
I. Comfort ventilation : is realized during standard operation
of the system when main purpose is to remove pollutants and harmful
substances (e.g. aldehydes, oxides etc.),
II. Smoke and heat control : is realized in case of a fire when
main purpose is to remove smoke and hot smoky gases in order to
reduce air temperature, enable safe evacuation and improve
conditions of rescue parties,
III. Make-up air supply : consists in supply design volumetric
flow of compensativeair.
Jet fan ventilation system provides (depending on applied
automatics) number of important advantages in comparison to typical
ducted smoke extraction systems i.e.:
Jet fan ventilation systems
Equipment:? two-speeds motors, three-phase motors 400V/50Hz.
International Protection IP55, cooling method
IC418. Fans F300 and F400 use insulation class H motors and
Single-purpose fans use insulation F class motors,
elliptic attenuators L=800 at the inlet and discharge -
standard,
? ?safety nets at the inlet and discharge - standard,
? ?deflectors – option.
•
•
•
•
Intended use:•
•
? single-purpose fans : intended for comfort ventilation and
make-up air supply, operating temperature 40°C,
? fans certified in accordance with standard PN-EN 12101-3:2010:
– – intended for comfort ventilation and smoke and heat control
systems at the maximum
operating temperature of 300°C for 60 minut - Class F300: CWU
1448-CPR-0464/W
– intended for comfort ventilation and smoke and heat control
systems at the maximum operating temperature of 400°C for 120 min -
Class F400: CWU 1488-CPR-0465/W
The casing of SCF type jet fans is made of galvanized steel,
with two mounting brackets. The impeller is welded from alloy
steel. Installation box is mounted on the fan casing.
In the standard application, the 800 mm long, T type silencers
are installed at the inlet and discharge of all SCF type jet fans.
The casing of the silencers has elliptical shape in order to
minimize the distance between the fan and the ceiling.
Normally, there are S type safety nets mounted at the ends of
the silencers. The D type deflectors can be provided as the
additional equipment.
Deflector is used to direct the air jet in order to avoid the
obstacles e.g. ceiling joists. Additionally deflectors can be used
to prevent the Coandã effect (the tendency of the air jet to be
attracted to a nearby surface) by appropriate directing the air
jet.
SMAY company provides comprehensive technical support at any
stage of the project, from design of the ducted comfort and smoke
extraction systems and jet fan systems,
®supply of complete LPG and CO detection systems and CFD
analysis (FDS, Ansys ®Fluent ) ending with assembly and acceptance
tests.
Construction
SCF
SCF jet fans are produced only in reversing operation version,
DN 315, 355, 400 mm.
•
•
•
•
•
•
•
•
•
•
Efficient ventilation (air movement not only within the range of
air jet of the grilles
but within the whole cubature of the protected space),
Short response time in case of the fire,
Fast achievable, effective smoke removal in the whole cubature
of protected space,
Easy assembly,
Easy balancing and calibration,
More time-effective design and assembly on site,
Lower assembly costs (elimination of the ductwork and it's
equipment),
Lower operating costs (reduced power consumption due to lower
engine powers
and flexible operating modes),
Larger available room cubature (under the ceiling space), lower
ceiling height
possible,
Improved appearance of the protected space.
Jet fan (impulse) ductless ventilation systems are usually
applied for large volume spaces. Properly designed jet fan system
can be used for:
I. Comfort ventilation : is realized during standard operation
of the system when main purpose is to remove pollutants and harmful
substances (e.g. aldehydes, oxides etc.),
II. Smoke and heat control : is realized in case of a fire when
main purpose is to remove smoke and hot smoky gases in order to
reduce air temperature, enable safe evacuation and improve
conditions of rescue parties,
III. Make-up air supply : consists in supply design volumetric
flow of compensativeair.
Jet fan ventilation system provides (depending on applied
automatics) number of important advantages in comparison to typical
ducted smoke extraction systems i.e.:
Jet fan ventilation systems
Equipment:? two-speeds motors, three-phase motors 400V/50Hz.
International Protection IP55, cooling method
IC418. Fans F300 and F400 use insulation class H motors and
Single-purpose fans use insulation F class motors,
elliptic attenuators L=800 at the inlet and discharge -
standard,
? ?safety nets at the inlet and discharge - standard,
? ?deflectors – option.
•
•
•
•
Intended use:•
•
? single-purpose fans : intended for comfort ventilation and
make-up air supply, operating temperature 40°C,
? fans certified in accordance with standard PN-EN 12101-3:2010:
– – intended for comfort ventilation and smoke and heat control
systems at the maximum
operating temperature of 300°C for 60 minut - Class F300: CWU
1448-CPR-0464/W
– intended for comfort ventilation and smoke and heat control
systems at the maximum operating temperature of 400°C for 120 min -
Class F400: CWU 1488-CPR-0465/W
The casing of SCF type jet fans is made of galvanized steel,
with two mounting brackets. The impeller is welded from alloy
steel. Installation box is mounted on the fan casing.
In the standard application, the 800 mm long, T type silencers
are installed at the inlet and discharge of all SCF type jet fans.
The casing of the silencers has elliptical shape in order to
minimize the distance between the fan and the ceiling.
Normally, there are S type safety nets mounted at the ends of
the silencers. The D type deflectors can be provided as the
additional equipment.
Deflector is used to direct the air jet in order to avoid the
obstacles e.g. ceiling joists. Additionally deflectors can be used
to prevent the Coandã effect (the tendency of the air jet to be
attracted to a nearby surface) by appropriate directing the air
jet.
SMAY company provides comprehensive technical support at any
stage of the project, from design of the ducted comfort and smoke
extraction systems and jet fan systems,
®supply of complete LPG and CO detection systems and CFD
analysis (FDS, Ansys ®Fluent ) ending with assembly and acceptance
tests.
Construction
