Products
Air ducts
Forged, welded or brazed: Each line is created for a specific project—in the size, material and sealing class required by your system.
All air ducts from one source
We manufacture bent air duct systems in all variants, as well as welded ducts and pipes.
Energy-saving and hygienic
High air tightness reduces leakage losses and supports energy-efficient plant operation.
Quality from Trier
Development and production at our site in Trier. Short distances and well-established processes ensure reliable quality and timely delivery.
01 Fled
From the idea to the finished component
Standard version according to DIN EN 1505, 1507 and DIN 18379 — in all pressure levels and sealing classes.
Gradation of flange profiles
20 mm – 1000 mm edge length
30 mm – 2000 mm edge length
40 mm from 2001 mm edge length
Materials/Components
Steel sheet
Stainless steel (1.4301 + 1.4571)
Aluminum
Standard version
Design according to DIN EN 1505, 1507 and DIN 18379
Pressure levels: Low pressure, medium pressure and high pressure according to VDI 3803
Sheet quality: Cold-rolled fine sheets, quality D x 51D + Z275 MA, Z275 MA-C, zinc coating at least 275 g/sqm on both sides
Connection with lightweight profile frame, with 4-screw corner connection, spot welded, corners sealed
Standard firing range: 1500 and 1000 mm
Shot length: 3000 mm max.
Reinforcement according to BLH standard
Light-duty assembly according to DIN 1505
Soundproofing of walls using beads with a length of 400 mm or more
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bent ventilation channels
Special versions
Ventilation ducts for export
Especially channels in an L-shape
Form parts with snap-fastening
Space-saving transport in wooden boxes, assembly on-site
Ventilation ducts for industry
For special requirements regarding rigidity, self-stability and oversized sizes. Design: 40 mm profile frame and raised edge | Variable sheet thickness
Individual bracing for large dimensions
Additional reinforcement inside and/or outside with Z-profile/hat profile
Coated channels
Channels with powder coating or wet paint
Special coatings for chlorine-containing exhaust air or process air
Isolated, double-walled ventilation channels
Insulation made of non-combustible mineral wool,
e.g. 20-50 mm thickness
e.g. 20-50 mm thickness
Alternatively, with Armaflex inner insulation
Reinforcement according to BLH standard
Soundproofing of the walls using beads
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02 Smoke extraction
MX smoke extraction ducts
Reliable extraction of smoke and combustion gases – tested and certified according to EN 12101-7.
Certificate
CE 0761-CPR-0513 according to EN 12101-7:2011
Examination
600 °C at 500 Pa pressure below to 120 min
Performance statement
MX smoke extraction ducts protect against toxic smoke gases in the event of a fire
In the event of a fire, smoke and hot combustion gases must be reliably removed from the building. MX smoke extraction ducts are specially designed for this task and ensure the safe removal of smoke even under high thermal loads.
Additionally tested at room temperature with 1500 Pa of negative pressure
Proof according to DIN 18232-6, prEN 1366-9 and CE marking
Custom-fit flame gas compensators, gratings and silencers are also supplied by us.
Connecting the channels to the compensators via a SBM 30 frame profile
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03 Welded
Welded channels & shaped elements
For demanding industrial and process air applications – welded, robust and manufactured specifically to the project requirements.
Applications
Industry
Kraftwerk
Process air
Sealing class
ATC 2 (D) according to DIN EN 16798-3
Channel length
Standard 1380 mm at
formed frame 40/20
formed frame 40/20
Performance statement
Standard version
Oil and grease-proof version available
Additional reinforcement through welded pipe supports or welded profiles depending on the differential pressure
Frame recess according to BLH standard, hole spacing 100 mm — adjustment possible
Black sheet metal also has corrosion protection through surface treatment
Pressure range up to +6000 / –2500 Pa
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Flange variants
1
Modular container
Formed flange with back pocket in 40/20 to 60/40. Perforation with 100 mm spacing
2
Circulately welded
Formed flange with back pocket in 40/20 to 60/40. Perforation with 100 mm spacing
3
Compiled, redistributed
Flange marked according to DIN 1028 (resistance spot welding), channel ends rounded off to 10 mm according to DIN 24192-W2, corners welded.
We also manufacture welded channels in the following materials:
Materials
Stainless steel
1.4301, 1.4404, 1.4571 Surface 2B according to DIN EN 10088
After processing, bleached and neutralized, passivated on request
Surface brushed (q according to DIN 17440)
Welded seams locally brazed and neutralized or brushed
Steel sheet
S 235, DX51D+Z275 MA-C
Without surface coating
Interior/exterior primed, painted with a top coat or powder coated
Fully galvanized in the bath according to DIN 50976 or banded galvanized
Aluminum
Aluminium and alloys
Aluminium foil AL 99.5
ALMg3 (resistant to seawater)
Interior and/or exterior additionally coated with a protective paint
04 Piping
Welded pipe lines & fittings
Round pipes for industrial processes - tightly welded
Material
Galvanized steel
Stainless steel
Black steel
Strang length
Up to 14m with round weld seam
Standard version
Individual pipe sizes and grade numbers for segment bends with diameters of 100 – 2,500 mm
Air tightness class D according to DIN EN 12237
Flanges loose behind the ship or welded tightly
Wall thicknesses 1.5 to 5 mm
Corrosion protection through surface coating possible
Special version
Density test: Nekal test, color penetration test, through-beam test, etc.
Material configuration according to DIN 50049 · Individual packaging upon request
Higher tolerances and weld seam quality, according to EN 25817/D
Welding process: Hand welding seams MAG or optional WIG
Manufacturing tolerances according to DIN 24151 or DIN 8570 C/G
Longitudinal welds are automated (plasma or WIG)
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Gallery
Impressions of our air ducts
Also from our hall
This complements their facility
Contact
Let's talk about your project.
Schedule an appointment with us now – Ventilation with a system
Whether it’s an initial idea or a concrete project – we will advise you personally and together find the appropriate solution. Within two working days, we will get back to you.