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Circular roof cowl

WD-CS
Photo of product WD-CS

 

WD- CS circular roof cowls are made from
galvanized steel sheet in the standard version. The bottom
part is a male connector for mounting to the roof base.
The roof cowl is available on request with a female connection
and/or made from stainless steel or aluminium sheet.

Sprawdź parametry techniczne produktu

Round roof intake and exhaust vents - Products range
Miniature picture Product code Name of product Files to download
Photo of product Exhaust/supply roof cowl VHLA-S

Exhaust/supply roof cowl

VHLA-S Exhaust/supply roof cowl is made of segments, its
modern and sleek design enhances the aesthetics of any project.
Stainless steel and aluminium versions are now available as
well as wider range of diameters thanks to newly implemented
technology processes. VHLA-S exhaust/supply roof cowls can
be powder coated in any RAL colour on special order.

Exhaust/supply roof cowl
Photo of product Exhaust air tower VHLA-ST

Exhaust air tower

VHLA-ST Supply air/ exhaust air tower is manufactured
of segments, designed for ventilation duct installation.
Thanks to a higher housing base in comparison to e.g.
VHLA-S model, the ventilation tower does not supply air
near ground. VHLA-ST design and a multitude of material
versions - galvanised sheet, powder-coated, stainless steel
or aluminum - make this model architecturally fit into the
landscape of a modern housing estate or office complex or
home installation of a ground heat exchanger.

Exhaust air tower
Photo of product Circular lamella hood VHLA

Circular lamella hood

 

VHLA roof air intakes/exhaust vents are made from galvanized
steel. The carefully designed form and finish provide a
great visual impact and a splendid match for the building's
architectural style.
The VHLA roof air intakes/exhaust vents fit ducts with Ød.
The standard diameter Ød is a male connection size, and the
standard diameter ØD is a double-sided female connection
size for installation of VHLA units on SPRI pre-insulated ducts
with 50 mm of mineral wool.
The product can also be painted in any RAL colour.

Circular lamella hood
Photo of product Rotating chimney cowls WD-TURBO

Rotating chimney cowls

 

WD-TURBO roof turbine ventilators cap the exhaust end of
ventilation ductwork or a flue stack.
They spin by the force of wind. By this effect and the specially
designed geometry of the turbine bell vanes, the ventilator
sucks out the air (or flue gas, as the case may be) to the
outside.
The roof turbine ventilators enhance the stack draught effect
and provide protection against ingress of rain, snow and
condensation.

Rotating chimney cowls
Photo of product Roof air intake CD-CS

Roof air intake

 

Roof cowls for the extraction/ supply of air are made of galvanized
steel sheet as a standard. The bottom part is a male connector
for mounting to the roof base.
The product is available on request with a female connection
and/or made from stainless steel or aluminium sheet.

NOTE!

Extract roof cowls are fitted with a protection
mesh that prevents birds, insects, leaves and
others from entering into the ductwork.

Roof air intake
Photo of product Circular roof cowl WD-CS

Circular roof cowl

 

WD- CS circular roof cowls are made from
galvanized steel sheet in the standard version. The bottom
part is a male connector for mounting to the roof base.
The roof cowl is available on request with a female connection
and/or made from stainless steel or aluminium sheet.

Circular roof cowl
Photo of product Round roof exhaust vent WD-C1

Round roof exhaust vent


A roof exhaust vent serves as a roof ventilator installed over the
roof surface. The unit is usually mounted to a roof base, and
both parts of the assembly are mated with FLS steel flanges
which make the joint and the whole assembly very sturdy and
stiff to resist strong gusts of wind. Other available versions
of roof exhaust vents include male and female connection
sizes for direct connection with spiral ducts and fittings or
matching roof bases. The roof exhaust vent can be made from
aluminium sheet or stainless steel sheet, whenever special
performance or material is required.

Round roof exhaust vent
Photo of product Round roof air intake unit WD-C2

Round roof air intake unit

WD-C2 roof exhaust vents are designed to minimize the
ingress of rain into the ventilation ductwork. The available
installation methods do not differ from those used for WD-C1
units, and the sloped design allows a larger cap for better
protection against rain.

Round roof air intake unit
Photo of product Vertical roof exhaust vent WD-D

Vertical roof exhaust vent


The type D roof exhaust vents are available in galvanized steel
in the standard version. The bottom part features an FLS steel
flange for connection with the roof base.
Other connection types and sheet materials are available.
The base has a deflector for protection against snow and
drainage of water to the outside of the vent. The roof exhaust
vent requires bracing with side stays.
Since WD-D units have no standard drip features, they must
only be used in continuous air flow ventilation systems.

Vertical roof exhaust vent
Photo of product Roof exhaust vent WD-E

Roof exhaust vent


WD-E roof exhaust vents are used for rooftop termination
of the ductwork to evacuate air to the outside. The outlet is
protected against rain and snow by a sloping flange which
deflects the water onto the side walls to drain it to the roofing.
The standard roof exhaust vent is made from galvanized steel
sheet and provided with an FLS steel flange.
The product is available on request with a male or female
connection, and/or made from stainless steel or aluminium
sheet.

Roof exhaust vent
Photo of product Vertical roof exhaust vent WD-G

Vertical roof exhaust vent


The type G roof exhaust vent provides the ventilation system
with a vertical air exhaust flow. Given the overall product
height, a standard connection method is recommended, by
mating the FLS steel flanges and bracing with side cable stays.
The inner standing edge of the roof exhaust vent provides an
efficient output for the exhaust air. The standing edge also
provides a drainage surface for rain and snow water which
flows off onto the roof exhaust vent walls and then down
to the roofing surface. This eliminates any hazard of water
ingress into the ventilation ductwork.
The available versions can be made from stainless steel sheet
or aluminium sheet and with various connection styles. The
roof exhaust vent requires bracing with side stays.

Vertical roof exhaust vent
Photo of product Cylindrical roof ventilator WD-B

Cylindrical roof ventilator

The type B cylindrical roof exhaust vents are made from
galvanized steel sheet in the standard version. The bottom part
features an FLS steel flange for connection with the roof base.
Other connection types and materials are available.

Cylindrical roof ventilator
Photo of product Take-off bends with wire mesh BSAV-90

Take-off bends with wire mesh


Take-off bends are air exhaust pieces for termination of
ventilation ductwork made of spiral coiled ducts or other
round duct types. They are made of BS or BSL segmented
bends (depending on the length size) coupled by factory-made
seal and hem with an ASV-45 angle take-off provided
with wire mesh. The flared top of the take-off helps protect
against ingress of rain and snow, and the 12.7x12.7 mm
mesh protects against birds and large insects. The product is
designed for exhaust ventilation systems in which the bend
has a male connection size for joining with other compatible
ductwork pieces. Versions provided with an FLS steel flange
connection and made from stainless steel / aluminium are
available on request.

Take-off bends with wire mesh
Photo of product Outdoor vent take-off bend with wire mesh BSILN-135

Outdoor vent take-off bend with wire mesh


Round segmented take-off bends serve as roof exhaust vents
in mechanical, heat-recovery and gravity ventilation systems.
The 135-degree angle of the mouth helps protect against
ingress of rain, snow and water. The 12.7x12.7 mm mesh
protects against leaves, debris and birds. The take-off bend
can be used as an exhaust vent or an air intake unit. The male
connector fits spiral ducts and type B1 round roof bases. The
product is available on request with an FLS steel flange or a
female connector size for combining with ventilation fittings.

Outdoor vent take-off bend with wire mesh
Photo of product Straight roof air intake CD-C1

Straight roof air intake


A standard roof air intake to be installed on type B1, B2 and
B3 round roof bases. The 12.7x12.7 mm mesh protects against
leaves, debris and birds. The cap at the top protects against
rain, snow and water. The standard connection for this product
is an FLS steel flange which can be replaced with a male
connector for spiral ducts or a female connector suitable for
fittings and roof bases (with a male connection size). Such
replacement is recommended only for small diameter sizes.
The versions available in stainless steel or aluminium enable
using the air intake in non-standard ventilation systems.
The roof air intake is provided with 12.7x12.7 mm galvanized
steel wire mesh made of 1 mm wires for protection against
debris.

Straight roof air intake
Photo of product Flared roof air intake unit CD-C2

Flared roof air intake unit


The type C2 flared roof air intake units are made from
galvanized steel sheet in the standard version. The bottom part
features an FLS steel flange for connection with the roof base.
The roof air intake is available on request with other connection
styles and/or made from stainless steel or aluminium sheet.
The roof air intake is provided with 12.7x12.7 mm galvanized
steel wire mesh made of 1 mm wires for protection against
debris.

Flared roof air intake unit
Photo of product Roof cowl with mesh CD-O-P / CD-S-P / CD-P-P

Roof cowl with mesh

CD-S-P / CD-O-P / CD-P-P Supply air roof cowl is designed to
be placed on roof of residential buildings. The roof cowl has
aesthetic design made of perforated metal sheet (square holes)
and 3 types of top hats - pitched, round and flat. The mesh
ensures proper airflow and simultaneously prevents birds,
leaves and others from entering into the duct termination
point. CD-S-P / CD-O-P / CD-P-P Supply air roof cowl has few
types of connection fitted for different duct terminations.

Roof cowl with mesh
Photo of product Chimney ventilation cowls RHA

Chimney ventilation cowls

The ventilation chimney cowl is the easiest, simplest and most
budget-friendly all-rounder of all possible vertical air exhaust
ends in installation systems built with round ducts and fittings.
The product is available in 3 different sizes, each for a specific
diameter range. The product is installed by bending down the
3 or 4 legs to fit the connected spiral duct, inserting the legs
down to the stop, and fastening them with WGO screws or
blind rivets. Optional versions are available on request, made
from stainless steel sheet or aluminium sheet.

Chimney ventilation cowls
Photo of product Chimney venitlation cowls VHK

Chimney venitlation cowls

VHK ventilation chimney cowls offer a great solution for roof air
intakes or exhausts in industrial or housing ventilation systems.
They are made from galvanized steel sheet in the standard
version; non-standard versions in stainless steel sheet,
aluminium sheet or plastic-coated steel sheet (in various
colours) are available on request. The intake mouth is protected
by a steel mesh. The standard version has a connector port;
a flanged version is available on request.

Chimney venitlation cowls
Photo of product Jet cowls HAN / HAF

Jet cowls

HAN/HAF roof exhaust units are suitable for both industrial
and housing ventilation systems.
The air is exhausted in a vertical stream to avoid contamination
of the air and the nearby roof surface. This roof exhaust unit is
so efficient that roof air intakes can be installed very close by.
The standard version is made from galvanized steel sheet;
non-standard versions in stainless steel sheet, aluminium sheet,
or plastic-coated steel sheet (in various colours) are available
on request. The roof exhaust unit is topped with a 1/2-inch
wire mesh and has an inner deflector flange for protection
against snow and drainage of water to the outside of the vent.
Standard HAN roof exhaust units are manufactured with male
flanges, female flanges, and double-sided female connections
(for sliding over a duct).
Standard HAF roof exhaust units come with FLS steel
flanges.

Jet cowls
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