High-performance flexible ventilation ducts designed to move large volumes of fresh air. They are essential for safe operations in infrastructure construction, mining, industry, and large-scale facilities.
DLD’s flexible forced-air ducts stand out in the market for their high-quality construction and technical specifications.
Our flexible ventilation ducts undergo rigorous quality control. Thanks to the materials and technological solutions used, they are ideal for applications where standard ventilation systems cannot be used.
Thanks to specialized fabrics, the hoses are designed to operate at discharge pressures of up to 15,000 Pa.
Guaranteed flexibility and durability under extreme temperature conditions ranging from -10°C to +80°C.
Flame-retardant material (VTM-0 / self-extinguishing), ensuring high standards of fire protection.
They do not produce sparks or accumulate static electricity (surface resistance < 1×10⁹ Ω). They are safe for use in potentially explosive atmospheres (ATEX-compliant).
DLD ventilation ducts undergo regular strength tests in certified laboratories, ensuring safe use even in the most demanding conditions (mining or tunnel construction) and uninterrupted operation.
We manufacture ducts with the largest diameters on the market. Our standard product range includes pressure ducts with diameters up to 2,900 mm. In addition, we can manufacture ducts with even larger diameters upon request.
300-1000
millimeters
Standard, most commonly selected sizes for mobile industrial exhaust systems, shipyards, and dust collectors.
1200-2000
millimeters
Large-diameter ducts designed for mining, tunnel construction, and the operation of large tunnel boring machines (TBMs).
do 2900
millimeters
The largest ventilation duct cross-sections on the market, manufactured immediately without the need for non-standard configurations of our production lines.
Other
diameters
As a manufacturer, we can produce ducts with even larger diameters upon special request.
What size do you need for your project?
Each DLD forced duct is designed to provide reliable ventilation even under the most demanding conditions.
Our ducts are essential for the construction of road and rail tunnels as well as subway stations. Designed to withstand high pressures, they deliver large volumes of fresh air over long distances (working in conjunction with TBMs, among other equipment).
Ducting is ideal for use as flexible distribution lines for heaters. Its high-temperature resistance (+80°C) allows for the safe transport of warm air to halls, tents, and buildings undergoing dehumidification.
Build your ventilation system
Building an efficient ventilation system requires various components. Check out other DLD products that can be easily connected to the forced-air ducts.
As a direct manufacturer, we provide support at every stage – from selecting the diameter and material to custom suspension systems. Fill out the form, and we’ll prepare a quote tailored to your needs.
