products
and solutions

DL suction and exhaust air vents are suitable as an easy alternative for outside air intake and routing exhaust air.

DL suction and exhaust air vents are suitable as an easy alternative for outside air intake and routing exhaust air.

DL suction and exhaust air nozzles in a square design are suitable for exhaust and incoming air; they are deployed in ventilation systems and building facades.

DL suction and exhaust air nozzles in a round design are suitable for exhaust and incoming air; they are deployed in ventilation systems and building facades.

DL roof ducts and roof curbs in a square design are used to route air ducts and to securely attach roof mounts and air ducts – and are suitable for installation in both flat and sloping roofs.

DL roof ducts in a round design are used to route air ducts and to securely attach roof mounts and air ducts – and are suitable for installation in both flat and sloping roofs.  

DL roof hoods in a square design serve to route exhaust air and facilitate the intake of outside air.

DL roof hoods in a round design serve to route exhaust air and facilitate the intake of outside air.

DL deflector hoods in a square design are used on roofs to conduct away used air containing harmful substances.

DL deflector hoods in a round design are used on roofs to conduct away used air containing harmful substances. 

DL throttle dampers in a square design are used to regulate pressure and volumetric flow rate in ventilation systems.

DL multi-leaf dampers in an insulated design are suitable for closing off channels and openings in walls and ceilings in order to counteract the influence of cold/heat and minimise the required energy consumption.

DL multi-leaf dampers are suitable for regulating pressure and volumetric flow rate in ventilation systems and closing off channels and openings in walls and ceilings.

Filter housing designed to hold filter mats and metal meshing (grease filters). Stable duct housing with lateral inspection opening, star-shaped grips and handle to enable speedy replacement of filter mats. 

DL expansion joints in a round design are used as flexible connections in air ducts and as junctions with fire dampers.  

DL expansion joints in a square design are used as flexible connections in air ducts and as junctions with fire dampers.

DL splitter attenuators in a square design are used to reduce noise in ventilation systems and construction work openings.

DL slatted hoods in a square design serve to route outgoing and incoming air while protecting channel ducts. They feature a stable substructure onto which the covered slats are mounted.

DL rain traps in a square design have been developed for a vertical airflow and are mainly used for outgoing air, but are also suitable as an outdoor air unit.

DL VSG bird protection grilles or WDG corrugated wire grilles in a square design are used in ventilation systems and building facades.

In order to ensure optimum ambient air quality, it is necessary to filter the outside air, removing pollen, dust and particles from this air before it is released into ventilated areas.

DL high-/low-pressure multi-leaf dampers in a square design are suitable for wall and channel installation and are used to prevent the entry of unwanted air against the planned flow direction.

DL weather protection grilles in a square design for sloping roofs are suitable for incoming and outgoing air; they are used in roof areas to close off ventilation openings.

DL weather protection grilles in a square design are suitable for incoming and outgoing air. They are installed within ventilation systems and building facades in order to reduce drops in pressure and flow noise, as well as to protect channel ducts against foreign bodies and prevent the infiltration of precipitation.

Smoke extraction ducts without fire-resistance specifications that chiefly comprise factory-made ducts, accessories and expansion joints.

Air ducts with lock-seam joints, plus accessories. This tested system can achieve airtightness class D/ATC 2.

Air ducts in a welded design in accordance with DIN EN 1505, 1507 and VDI 3803.

Ventilation towers are suitable for use with outdoor and exhaust air. The model and design are tailored to customer specifications.