The SLEFL flexible silencer is made of the Alnor Flex perforated
duct. The sound insulating layer is 25 mm thick and clad in
aluminium and polyester. The silencer is connected to the
ductwork with male flanges made of metal. The product
is available in two length sizes, 600 mm and 1200 mm.
Other silencer versions are available on request
with EPDM gaskets, female flanges, or in other length sizes.
Insulation
Insulation material glass wool.
Insulation type trimmed from reel, flexible.
Temperature range 20°C to +140°C
Thermal insulation performance of mineral wool
λ = 0.034 W/mK at 24°C
Pressure drop
See the enclosed diagram.
Fire resistance
The silencers are made from fireproof materials.
The IPR access door features a CR EPDM gasket and it is
designed for installation on round duct walls. The design
of the IPR access door and its gasket profile provide a
perfect seal around the duct opening. This ensures a high
air tightness class.
The product provides a very simple, lowcost and extremely
effective solution for closing and sealing access openings
in the ductwork. The openings made in the ductwork for
access doors must be sized to meet the requirements of EN
12097.
Another determinant of the access opening size is how
the interior is cleaned. Some cleaning processes and tools
require access doors as large as 800x400 mm. The access
door is installed in the opening made using the cutting
template supplied with the product.
HRUWALLRC is a bidirectional ventilation unit, often
described as decentralized or pushpull, with regenerative
ceramic heat exchanger. It is intended for single room
installation, usually installed in synchronised pairs. The heat
exchanger material together with its unique honeycomb
structure gives a maximal 82% thermal efficiency ratio (74%
acc. to 1254/2014 EU Directive reference measuring point).
The operating principle is analogous to HRUWALL unit
is working in alternating flow mode, switches the air flow
directions every 40120 seconds (pushpull) and it’s equipped
with energy efficient EC fan (maximum power consumption
is only 6 W for HRUWALLRC15060).
The unit casing is made of ABS plastic. A remote controller with
LCD display is included in the set.
We recommend installing the devices in pairs
The HomEvap adiabatic humidifier is designed for domestic
mechanical ventilation systems with a maximum airflow
600 m3/h. Filtered water (Legiosafe®) naturally evaporates on
a special matrix, and then the humidified air is distributed
to the ventilation duct system and to the connected rooms.
The humidification process is regulated by a wireless room
controller and a duct sensor. Builtin PTC heater compensates
for temperature losses caused by the evaporation process.
The housing is made of EPP, while the matrix is made of fiber
glass.
SPRZSMO SMOKE system spiral circular duct, fire resistance
classE600 120 (ho) S1500 single, designed for singlecompartment smoke extraction systems and combined (dualfunction) systems. Made of galvanized steel sheet DX51D+Z275
according to PNEN103462011, thickness 0.7mm for diameters
from 100710mm, 0.9mm for diameters from 8001000mm.
The maximum length of a straight duct is 6000mm. Spiral ducts
meet the requirements of airtightness class D in accordance
with PNEN 12237.
In the whole range of diameters they are made as spiral
lockseamed ducts made of 137mm wide sheet metal sheet,
additionally, from the diameter of 250 to 1000mm, they are
corrugated;
The FDA212 square fire dampers are designed for use in general ventilation systems to seal off smoke and fire between adjacent fire partitions. The fire dampers are classified according to EN 135013+A12010P (Fire classification of construction products and building elements). The fire resistance was tested as per PNEN 1366 22015 (Fire resistance tests for service installations — Part 2 Fire dampers). The entire manufacturing process meets the requirements of EN 156502010. The FDA212 fire dampers can be installed in horizontal and vertical fire partitions to provide fire resistance of EI 120 (ve ho i↔o) S (which may depend on the actual fire resistance of the partition). The fire dampers are available in the nominal sizes 160x160 – 1000x500 mm. All fire dampers have a torsion spring trip (in FDA212T) or a returnspring actuator coupled with a thermal trip (in FDA212M).
The FLXPLOEPPF plenum boxes are part of the FLXREKU
air distribution system designed for domestic mechanical
ventilation systems, socalled the MVHR system, to which an
air valve and FLXHDPE / FLXHDPEA ducts with a diameter
of Ø75 are mounted.
Due to their small size, they do not require much space or
special installation. This allows achieving a larger usable floor
area of the room.
The FLXPLOEPPF plenum boxes are made of expanded
polypropylene, i.e. EPP, while Ø75 spigots are made of ABS.
The material used allows obtaining an aerodynamic shape of
the inside of the box which leads to low air resistance.
HRUWALL is a singleroom decentralized heat recovery unit
for concealed installation. The unit comes with a ceramic
heat exchanger which boasts a maximum heat recovery ratio
of 90% (the nominal heat recovery ratio is η=74.3% as per EN
1314182011).
The energyefficient EC fan changes the running direction
every 70 seconds to alternate between air supply and
air exhaust. Low energy consumption and extremely low
operating noise make this heat recovery unit a recommended
solution for nonstop operation. The heat recovery unit has
three speed levels to choose from, depending on the size of
the area and indoor demands.
HRUWALL10025 provides a sufficient air change level
in areas up to 19m2.
HRUWALL15060 provides a sufficient air change level
in areas up to 45m2.
We recommend installing the devices in pairs.
The HRUSlimAIR heat recovery unit is designed for
residential buildings. The HRU has a capacity of 250 m3/h
@ 100 Pa, generated by energyefficient EC fans. Thanks
to a counterflow heat exchanger made of a plastic (PET), it
achieves up to 90% heat recovery An ERV version with an
enthalpy exchanger that recovers moisture is also available.
Builtin electric preheater protects heat exchanger against
freezing, wireless radio communication connects controllers
and sensors, and all of it is enclosed inside a selfsupporting,
insulating EPP casing.
HRUSlimAIR can be installed in up to 3 positions, thanks to
a special condensate drain system.
Ventilation bends 45˚ made from expanded polypropylene (EPP).
Bends are produced in diameters 125, 160 and 200 mm. The
standard wall thickness is 15 mm. Each bend has a malefemale
coupling, the connection method eliminates thermal bridges.
Two 45˚ bends connect easily into one 90˚
Thermal conductivity 0.039 W / m*K
Airtightness class ATC2 (old D) @ 90Pa acc. to PNEN 17192201901
The DSQWA rectangular multiblade aluminium dampers can
be used to control and isolate air flow in rectangular ductwork.
The dampers can be installed in ventilation ducts, as wallmounted air flow regulators, or AHU air flow regulating and
shutoff units.
All dampers have a housing made of 4 aluminium profiles and
a closure consisting of aluminium blades. The blade height is
the same for all product sizes.
The blades are fitted with gaskets to provide air tightness
class 2 as per EN 17512003.
The DSQWA damper can have a handoperated
damper mechanism QDMPSAL, an externallymounted actuator, or an actuator mounting.
The damper mechanism is installed on the outer
surface of the housing. The damper blade rotation mechanism
features short and long shafts rotating by intermeshed gears
installed on bearings. The gears are installed on the outer
surface of the housing.
The FDABURML coupling module is a combination of an air
valve and a fire damper, coupled with a single housing. This
is an alternative to typeical fire valves. The main advantages
of the FDABURML are better fire rating and a smaller size
with more product configurations and application options.
The main component of the coupling module is the CFDM
fire damper. The fire damper is available in Ø 100, 125, 160,
and 200 mm. The wing blade of the damper provides a very
low resistance to the air flow. The fire damper can be ordered
with one or two optional limit switches to feed back the
actual blade position.
The FDABURML coupling modules match the most popular
versions of air supply or exhaust valves which can be replaced
with one another, even with the coupling module installed
in a partition or already in use. The entire coupling module is
compact. As a result, the air valves with the mounting frames
cannot exceed 50 mm in height.
The DATL/DAT dampers are designed for cladding with up to
50 mm thick insulation.
The DATL/DAT dampers are a good choice when the ductwork
closure must be airtight. The damper closure position can be
read on the 0° to 90° dial of the control handle. The damper
closure opening ratio can be fixed with a screw.
DAT — airtight shutoff damper
DATL — airtight shutoff damper with gaskets at
flanged ends
All DATL/DAT dampers of diameter 355 mm or greater have
the damper closure pivot provided with extra bracing.
All DATL/DAT dampers of diameter 450 mm or greater are
supplied with the KITDSH damper mechanism control lever.
Standard dampers are made from galvanized steel sheet.
LDBST strut channel are available in 2 to 6 m long and 1.6, 1.9,
2.0, and 2.5 mm thick sections. The STRUT channels are the
main components of HVAC and cooling installation systems
and can come very handy in fastening of any suspended
installations. The serrated inturned edges interlock with
SNP, SNL and SNKL unistrut channel nut washers to hold
the channel and its fastening bolts in place, as installed.
The Strut channels are compatible with the STROF system for
building roof supports and cantilever support arms.
Note
Outdoor roof structures require LDBSO strut channel with
a full hotdip galvanic coating which provides longterms
resistance to outdoor weathering.
The LDS linear slot diffuser are intended for ceiling or wall
installation. The product can supply warm or cold air. The
diffuser can feature from 1 to 4 slots, 495 mm or 990 mm in
length, depending on the product version. Each slot enables
separate air flow direction adjustment and is provided with
two deflector vanes. This design enables easy adaptation of
the air flow diffusion direction according to actual indoor
conditions.
With this easy adjustment functionality, the LDS linear slot
diffusers are ideal for variable air output ventilation systems
Electrostatic precipitator eMOCarz was design for residential
buildings. Compact size and exceptionally low pressure drop
makes it suitable for residential heat recovery systems, with
little impact on system performance. The filtration efficiency
of ePM1 and ePM2.5 particles, the main component of
smog, is as high as 95%.
Polluted air initially passes through a steel mesh prefilter
(which retains larger fractions), then is positively ionized in
an electric field due to the “crown discharge” effect. In the
last stage, the previously charged particles, are pulled by
electrostatic force toward horizontally mounted aluminium
plates (electrodes) and build up on their surface.
Electrostatic filters (precipitators) have low power consumption
(only few Watts), long service life and most of all there’s no
need to exchanged dirty (clogged) filters. It is enough to
clean in with water and detergent once or twice a year. There
is a led status indicator on the casing.
Round plastic ventilation pipes are joined by welding (or PVC
gluing up to ø250). Manufactured in accordance with DIN
8062 standards for ventilation pipes. PVC pipes of larger
diameter than 500mm are made of sheets. Pipes made of
PP, PPs, PE and PPELs are extruded. Other wall thicknesses
are available on request.
The SLC and SRC rectangular duct silencers reduce the noise
level in ventilation and A/C systems. This silencer type is usually
installed between a fan and an air supply or exhaust duct,
and upstream of air supply vents.
All silencers are made of a housing and inner baffles. The
housing is made from galvanized steel sheet and its ends are
framed with steel sheet angles.
All baffles inside the silencer have a round breast at one end
and comprise a galvanized steel frame with a soundinsulating
insert which absorbs the acoustic energy from the air flow.
The soundinsulating insert is a set of nonflammable mineral
wool panels. The outer surface of the soundinsulating insert
is lined with a special abrasionresistant textile to protect the
mineral wool from wear and tear. The mineral wool panels
are finished with a glass fibre lining in black; this lining is
suitable for systems with a maximum air flow rate of 20 m/s.
HRUWALLWI model ductless heat recovery unit comes
equipped with a WiFi module. Its basic parameters, including
max. heat recovery 82%, airflow rate 60 m3/h, and low sound
power level 38 dB (A), are identical to those of the HRUWALL
units.
Methods for pairing devices and controlling them are
different. With the addition of a WiFi module, the device can
be connected to a local wireless network and controlled via a
mobile app. Moreover, the app allows the pairing of devices
by assigning two or more heat recovery units to a group. It is
possible to have many groups so that 1 application can serve
all HRV units in a building.
A temperature sensor and relative humidity sensor are built
into the HRUWALLWI, and the app displays their values.
The RAVAV regulator is dedicated for forced ventilation systems
and is an important component for installations with variable
air flow.
The regulator casing is made of Z 275 galvanized sheet.
Optionally, it is possible to use the 1.4301 stainless steel to build
the casing. Casing sides with factoryinstalled EPDM rubber
gaskets ensure tight connection to ventilation ducts. Inside the
casing, the adjusting damper is also insulated (depending on the
control mechanism). The servomotor is installed on the control
unit casing so as to allow for thermal insulation of the system.
The regulator is also available in the version with preinstalled
50 mm insulation and a galvanised steel shield.
The measuring system based on aluminum impact pressure tubes
and pressure relieve stub pipes ensures reliable measuring of the
air flow.
Sensor, control unit and servomotor are integrated in one device.
The standard duct length is 3000 mm; the sheet thickness
for a given diameter is the same as that for the SPR spiral
coiled ducts.
The ducts of diameter 250 mm or greater feature outer ribbing
to improve the robustness and vacuum pressure strength.
The FDA12 round fire dampers are designed for use in general ventilation systems to seal off smoke and fire between adjacent fire partitions. The fire dampers are classified according to EN 135013+A12010P (Fire classification f construction products and building elements). The fire resistance was tested as per PNEN 136622001P (Fire resistance tests for service installations Part 2 Fire dampers). The entire manufacturing process meets the requirements of EN 156502010. The FDA12 fire dampers can be installed in horizontal and vertical fire partitions to provide fire resistance of EI 120 (ve ho i↔o) S (which may depend on the actual fire resistance of the partition). The fire dampers are available in the nominal diameter sizes DN100, DN125, DN160, DN200, DN250, and DN315. All fire dampers have a pull spring control gear and a fusible thermal trip (in FDA12T) or a returnspring actuator coupled with a thermal trip (in FDA12M).
Pressed bends are designed for building ventilation systems
based on spiral and plain ducts. Seam welds provide air
tightness class D without the need to use any other sealants.
In ventilation and heat recuperation systems, the double
EPDM gasket provides air tightness class D according to EN
12237. The piece is connected with a duct by inserting one
into the other. The pressed form of the ventilation piece helps
to reduce the flow resistance and the pressure loss.
Material:galvanized steel sheet
Degree:90
Round spiral ducts are available in diameters from 80 mm to
1600 mm. The ducts are available as made of 0.4 mm to 1.8
mm thick metal sheet; the ducts in diameters of DN 160 mm
or greater are also available with corrugation for improved
stiffness and vacuum strength. The corrugations are available
as a standard feature for diameters of DN 250 mm to DN
1600 mm. All spiral ducts made from galvanized steel sheet,
stainless steel sheet or aluminium sheet meet requirements
of air tightness class D according to EN 12237.
Round ventilation duct made of expanded polypropylene
(EPP). The most important features of the product are rigid
construction, low weight, easy assembly and good thermal
insulation. EPP ducts, used, for example, as sections of the
supply and exhaust ventilation systems with heat recovery,
do not require additional insulation. The system eliminates
the formation of thermal bridges.
Ducts na fittings do not require additional couplings.
Lenght EPP ducts 1 m sections
Diameters 125, 160 and 200 mm.
Wall thickness 43 mm
Thermal conductivity 0.039 W / m*K
Airtightness class ATC2 (old D) @110Pa
acc. to PNEN 17192201901
The GBL iris dampers are essential for smooth control of the
duct air pressure. The lever and the iris regulating plates
mechanism allow smooth adjustment of the diameter of the
orifice(opening). The iristype closure allows throttling of
the air flow without turbulence or induct noise. The GBL iris
damper can be installed both in air supply and air exhaust ducts.
Each Iris damper is provided with two manometer connections.
The GBL can be opened to the full clear diameter for easier
cleaning of the ductwork. The iris dampers, however, cannot
be sealed shut (the maximum closing ratio is ca. 25% of the
nominal clear diameter).