Flexible exhaust duct hose assemblies for workshop fumes, portable extraction, process-air routing and industrial blower systems—specified around the actual pressure direction, temperature, media, fan connection and installation route.
An industrial exhaust hose is a flexible conduit used to move contaminated air, fumes, smoke, warm process air or other permitted gas streams from a capture point toward a fan, filtration device or designated discharge path. In many industrial systems the hose works between a hood, machine or portable extractor and the larger ventilation system.
The critical difference is how the hose is used. A suction hose must resist collapse under negative pressure; a positive-pressure blower duct may use a more collapsible structure. Temperature, chemistry, abrasion, sparks, condensate, bend radius and repeated movement can also change the correct material and reinforcement.
Define the airflow duty first, then match the coated textile, reinforcement, seam, cuff and optional performance treatments. This produces a more comparable RFQ than asking only for “industrial exhaust hose price.”
Search results for exhaust hose often mix ambient-air ducting, vehicle exhaust tubing, high-temperature fabric hose and general ventilation hose. These product families are not interchangeable.
Flexible PVC-coated polyester ducting for ambient or moderate-temperature air, workshop ventilation, portable blower connections and many temporary extraction tasks. Spiral wire or rings can be added when the bore must remain open under suction.
A shape-retaining exhaust duct with helical reinforcement for negative-pressure extraction, bends and equipment connections. Wire gauge, pitch and wall construction should be coordinated with diameter, fan pressure and route geometry.
Hot-air and hot-fume service requires a separate material review, such as silicone-coated fiberglass or another project-matched construction. Standard PVC ventilation hose should not be assumed suitable for direct high-temperature exhaust.
Use the following fields to build a comparable quotation. Values shown are selection references from DERFLEX's existing flexible industrial duct range; the final approved data should be stated on the quotation, drawing, sample or technical document for the exact construction.
| Specification item | DERFLEX configuration direction | Why buyers should confirm it |
|---|---|---|
| Product format | Flexible industrial exhaust hose / fume extraction duct / blower exhaust duct | Clarifies whether the product is designed for air movement rather than liquid or bulk-material transfer. |
| Wall material | PVC-coated polyester for many general-duty applications; high-temperature technical textiles reviewed separately | Temperature, chemistry, flex life and abrasion resistance depend strongly on the selected wall system. |
| Reinforcement | Helical wire, support rings or project-specific structure | Negative pressure can collapse an unsupported hose; reinforcement also affects bending and packed volume. |
| Diameter | Approx. 100–2000 mm reference range; custom sizes can be reviewed | Diameter influences air velocity, pressure loss, fan compatibility and handling weight. |
| Section length | 5 m / 10 m / custom | Long sections reduce joints; shorter sections can simplify installation, replacement and storage. |
| Temperature | Standard PVC ducting reference: about -20°C to +80°C; other heat zones require another construction review | Continuous, peak and radiant heat should be separated instead of relying on one generic maximum value. |
| Pressure direction | Positive pressure / suction / reversible duty to be stated | Pressure direction determines whether layflat or shape-retaining reinforcement is appropriate. |
| Connections | Clamp cuffs, drawstring cuffs, rings, zippers, belts, adapters or custom fan interfaces | Correct interfaces reduce leakage and jobsite modification. |
| Optional treatments | Flame-retardant, antistatic, wear protection or other requirements by named test/specification | Safety-related claims should be tied to the exact construction and requested test method. |
| OEM details | Color, printed identification, labels, storage bags and packing can be reviewed | Useful for distributors, rental fleets, equipment makers and repeat replacement programs. |
PVC-coated polyester can provide a flexible air barrier, moisture resistance and a weldable surface for many general industrial ventilation duties.
Spring-steel or specified wire reinforcement helps the hose retain its bore during suction and controls bend behavior.
Welded or otherwise engineered seams are selected around the chosen textile, diameter, pressure and handling load.
Cuffs, rings, clamps, zippers, belts and adapters can be matched to fan outlets, hoods, machines or replacement duct sections.
Application names are only the starting point. The actual temperature, contaminants, spark or particulate load, chemical exposure, pressure and ventilation design should be reviewed before a hose is confirmed.
Flexible routing between capture hoods or extraction arms and a ventilation/filtration system. Confirm heat, sparks, metal particulate and required fire performance.
Local air and fume extraction around production equipment, enclosures and process stations where flexible routing simplifies connection or maintenance.
Temporary suction or air removal for maintenance, shutdowns, drying and mobile ventilation kits. Reinforcement should match the fan's negative-pressure duty.
Engine exhaust can be very hot. Direct exhaust connections require a dedicated high-temperature construction and system review; standard PVC duct should not be used by assumption.
Chemical compatibility depends on the actual substance, concentration, temperature and exposure time. Supply this information before material selection.
Flexible ducting can connect extraction points to dust/fume control systems. Abrasive particulate, condensate and cleaning method should be considered in the hose design.
| Selection point | PVC-coated flexible duct | Spiral-reinforced exhaust hose | High-temperature composite duct |
|---|---|---|---|
| Typical role | General ventilation, blower air, moderate-temperature exhaust | Suction, fume extraction, bends, shape-retaining connections | Hot-air and hot-fume routing after thermal review |
| Negative pressure | Only with suitable reinforcement | Common selection direction | Depends on helix and finished construction |
| Temperature basis | Polymer grade and assembly limit | Wall material + reinforcement + seam limit | Continuous, peak and radiant heat considered separately |
| Packed volume | Can be compact | Usually higher due to shape-retaining support | Depends on composite and wire architecture |
| Best RFQ input | Fan, diameter, length, pressure, temperature | Fan curve/pressure, route, bend radius, diameter, cuff | Heat profile, media, pressure, movement, diameter, connections |
A useful RFQ gives engineering and purchasing teams enough information to compare the same product architecture across suppliers.
For industrial exhaust projects, the hose wall and the finished assembly cannot be separated. DERFLEX's relevant advantage is the ability to discuss coated technical textiles together with reinforcement, welding, cuffs, identification and packing for repeat B2B supply.
Positive-pressure and negative-pressure hoses are reviewed as different structures instead of one generic duct.
Diameter, length, wire pitch, cuffs, adapters and connection details can be reviewed from actual equipment data.
Approved construction, markings and packing details can be retained to support replacement and repeat-order programs.
Fire, static and temperature statements are tied to the selected material, construction and applicable test route rather than broad universal claims.
These related pages help buyers move from a broad exhaust-hose search to the correct pressure, diameter and ventilation architecture.
It is a flexible air-conveyance hose used to route contaminated air, fumes, smoke, warm process air or other permitted gas streams from a capture point to a fan, filtration unit or discharge path. The correct construction depends on pressure direction, temperature, media and the complete ventilation system.
Yes, in suitable general industrial and moderate-temperature exhaust applications. For suction, it normally needs shape-retaining reinforcement. For direct hot engine exhaust, furnaces or other high-temperature sources, a different heat-resistant construction should be reviewed rather than assuming standard PVC is suitable.
A spiral-wire or otherwise reinforced flexible hose is usually the starting construction because it must resist collapse when the fan pulls air through it. The final wire pitch, wall material and diameter should be matched to the fan pressure and route.
Diameter should be selected with airflow volume, target transport velocity, pressure loss, fan capability, hood or machine connection and total route length. Increasing or reducing diameter without checking the system can change capture performance.
DERFLEX can review clamp cuffs, drawstring cuffs, rings, zippers, belts, adapters and other project interfaces. Sending the fan outlet dimensions, photos or drawings helps reduce fitting errors.
Send the application, media, pressure direction, fan data, diameter, route length, temperature profile, bends, connection style, chemical or abrasion exposure, required test standards, quantity and destination. This allows the quotation to describe a specific construction instead of a generic hose.
Send the pressure direction, temperature, media, diameter, length, bend route and connection details. DERFLEX can review a practical coated-textile and reinforced-duct construction for sampling and quotation.