This website uses cookies. Find out why they are used read our privacy policy. x
By browsing this website you agree to use cookie files, in accordance with the current browser settings.

Rectangular ducts and fittings made of plastics

Photo of product family: Rectangular ducts and fittings made of plastics


Rectangular ducts are manufactured from the highest quality
thermoplastics. Properly selected type of sheet (extruded,
pressed or foamed), material thickness or welding method
(hot air, welding, extrusion welding) allow to meet the various
installation expectations.

Different welding parameters are used for different materials.
Ventilation ducts and fittings are made according to DIN
4740 and DIN 4741 and Alnor factory standards.

For more information on types of plastics and their feature please
refer to our technical catalogue.

Rectangular ducts and fittings made of plastics - Products range
Miniature picture Product code Name of product Files to download
Photo of product Plastic rectangular ventilation ducts 
PVC-QDNF

Plastic rectangular ventilation ducts

 

Rectangular ducts and fittings made of plastics are
manufactured from sheet using the welding method. The
sheet thickness of which the ducts are made depends on
the length of the side and the circumference of the duct.
The thicknesses are selected in such a way as to ensure the
appropriate rigidity of the duct. On top of this, additional
reinforcements are applied. The dimension of the duct is the
external dimension.

Depending on the type of termination,
the system of ducts made of plastic materials is joined by
welding (female end), screwing (flanges) or gluing (only PVC).
Minimum duct size: 300 x 280 mm.
Standard duct lengths: 1000, 1500, 3000 mm.
Other lengths available upon request.

Plastic rectangular ventilation ducts
Photo of product Plastic rectangular ventilation elbow 
PVC-QBFF

Plastic rectangular ventilation elbow


90˚ elbow welded from plastic sheets. Fitting intended for
low-pressure systems. All fittings are made with a flange or a
female end. The dimension given in the catalogue constitutes
the external dimension of the fitting.

Plastic rectangular ventilation elbow
Photo of product Symmetric square-square reducer made of plastics 
PVC-QPR6F

Symmetric square-square reducer made of plastics

 

Symmetric reducer for joining two rectangular ducts with
different sections. Manufactured from plastic sheets with
the wall thickness suitable for the dimensions of the fitting.
The dimension given in the catalogue constitutes the external
dimension of the fitting.

Symmetric square-square reducer made of plastics
Photo of product Asymmetric square-square reducer made of plastic materials 
PVC-QPR2F

Asymmetric square-square reducer made of plastic materials


Asymmetric reducer for joining two rectangular ducts with
different sections. Except changing the duct dimensions it
allows for an offset along the axis. The fitting is manufactured
using modern welding tools. The dimension given in the
catalogue constitutes the external dimension of the fitting.

Asymmetric square-square reducer made of plastic materials
Photo of product Symmetric square-to-round reducer made of plastics
PVC-PR7F

Symmetric square-to-round reducer made of plastics


The asymmetric reducer serves the purpose of changing of
the system’s cross-section from the rectangular cross-section
to the round cross-section. Manufactured from plastic sheets
with the wall thickness suitable for the dimensions of the
fitting. The dimension given in the catalogue constitutes the
external dimension of the fitting

Symmetric square-to-round reducer made of plastics
Photo of product Symmetric rectangular tee made of plastics
PVC-TRF

Symmetric rectangular tee made of plastics


Symmetric tee with the branch-off at 90˚, made of welded
plastic sheets. Manufactured using high-quality welding
equipment. The dimension given in the catalogue constitutes
the external dimension of the fitting.

Symmetric rectangular tee made of plastics
Photo of product Plastic single-blade damper PVC-DSQ

Plastic single-blade damper

The single-blade damper is used to control and isolate air flow in rectangular ductwork.
The DSQ damper can have a hand-operated damper mechanism, an externally-mounted
actuator, or an actuator mounting. In the case of manual control, the rotation is carried
out using the handle. It is possible to lock the position of blade by two locking screws.
The standard version of DSQ is manual mechanism.

Plastic single-blade damper
Photo of product Rectangular multi-blade damper made of plastics PVC-DSQW

Rectangular multi-blade damper made of plastics

The DSQW rectangular multi-blade dampers can be used to control and
isolate air flow in rectangular ductwork. Rectangular multi-blade dampers
is made of plastic. The DSQW damper can have a hand-operated damper
mechanism, an externally-mounted 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.

Rectangular multi-blade damper made of plastics
REKUPERACJA
PROJEKTOWANIE
`