“Air Ventilator Orange”

$146.50$550.50
Some Sizes Out of Stock Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24

“Air Ventilator Black”

$146.50$550.50
Some Sizes Out of Stock Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24

“Air Ventilator Heavy-Duty”

$183.50$597.50
Temperature Range: -20°F to +180°F Sizes I.D. (in.): 6, 8, 12, 14, 16, & 24

“Air Ventilator Yellow”

$146.50$550.50
Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24

“Air Ventilator White”

$146.50$550.50
Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24

“Wind Handler WS”

$378.25$12,843.88
Lead Time 4-6 Weeks Temperature Range: -65°F to +250°F Sizes I.D. (in.): 4, 5, 6, 7, 8, 10, 12, 14, 16, 18, 20, 24, 28, 30, 36, 40, 42, 48, & 52

“Wind Handler Insulated TU”

$628.40$10,584.06
Lead Time 4-6 Weeks Temperature Range: -40°F to +250°F Sizes I.D. (in.): 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 28, 30, 36, & 40

“Wind Handler”

$324.25$2,855.00
Lead Time 4-6 Weeks Temperature Range: -65°F to +250°F Sizes I.D. (in.): 4, 5, 6, 7, 8, 10, 12, 14, 16, 18, 20, & 24

“Urethane Flex Self Extinguishing”

$360.50$2,787.00
Lead Time 4-6 Weeks Temperature Range: -65°F to +225°F Sizes I.D. (in.): 2, 2.5, 3, 4, 5, 6, 8, 10, & 12

“Tornado Flex Insulated AD”

$616.00$7,086.06
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 24, 28, 30, 36, & 48

“Tornado Flex In Sack”

$448.17$1,501.93
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 6, 8, 10, 12, 14, 16, 18, 20, & 24

“Tornado Flex”

$292.25$8,058.88
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 5, 6, 7, 8, 10, 12, 14, 16, 18, 20, 24, 28, 30, 36, 40, 42, & 48

“PVC Flexduct Heavy-Duty”

$170.50$2,172.50
Lead Time 4-6 Weeks Temperature Range: +20°F to +160°F Sizes I.D. (in.): 1.25, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 7, 8, 10, & 12

“PVC Flex Self Supporting”

$445.25$1,163.25
Lead Time 4-6 Weeks Temperature Range: -10°F to +150°F Sizes I.D. (in.): 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 8, 10, & 12

“Poly Fabric Flex Bridge”

$1,023.75$2,047.50
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 12, 16, 18, 20, 22, & 24

“Neoprene Flex – 2 ply WS”

$320.40$2,607.50
Lead Time 4-6 Weeks Temperature Range: -40°F to +250°F Sizes I.D. (in.): 3, 4, 5, 6, 7, 8, 10, & 12

“Neoprene Flex – 2 ply”

$256.20$12,813.63
Lead Time 4-6 Weeks Temperature Range: -40°F to +250°F Sizes I.D. (in.): 1, 1.25, 1.5, 1.75, 2, 2.25, 2.5, 2.75, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 22, 24, 28, 30, 36, 40, 42, & 48

“Acrylic Flex 325 Air Handler”

$208.30$1,688.00
Lead Time 4-6 Weeks Temperature Range: -20°F to +325°F Sizes I.D. (in.): 8, 10, 12, 14, 16, 18, 20, & 24

“Acrylic Flex 325”

$311.75$1,321.75
Lead Time 4-6 Weeks Temperature Range: -20°F to +325°F Sizes I.D. (in.): 2, 2.5, 3, 4, 5, 6, 7, 8, 9, & 10

“PVC Flexduct Light-Duty Blue”

$141.00$1,136.50
Lead Time 4-6 Weeks Temperature Range: -20°F to +160°F Sizes I.D. (in.): 1.25, 1.5, 1.75, 2, 2.25, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 12, 14, 16, & 18

“Poly Fabric Flex – 2 ply”

$310.25$911.00
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 3, 4, 5, 6, 7, 8, 10, & 12

“Poly Fabric Flex – 1 ply”

$273.25$712.50
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 3, 4, 5, 6, 7, 8, 10, & 12

“Neoprene Flex – 1 ply”

$288.25$1,668.00
Lead Time 4-6 Weeks Temperature Range: -65°F to +250°F Sizes I.D. (in.): 1.5, 1.75, 2, 2.25, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, & 12

Aluminum Connectors

$21.15$69.99
Sizes I.D. (in.): 1.5, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 18, 20, & 24

Stainless Steel Connectors

$30.27$50.59
Sizes I.D. (in.): 2, 3, 4, 5, 6, 7, 8, 10, & 12

Screw Clamps

$9.20$435.97
Sizes I.D. (in.): 1.5, 1.75, 2, 2.25, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 12, 14, 16, 18, & 20

Bridge Clamps

$8.29$21.19
Sizes I.D. (in.): 2, 2.25, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, & 12

J-Lock Connectors

$46.20$70.91
Sizes I.D. (in.): 4, 5, 6, 8, 10, 12, 14, 16, 18, & 20

Fire Data at Industrial Facilities

The National Fire Protection Association (NFPA) notes that an average of 36,800 fires occur yearly at industrial and trade properties. Of these, 8000 fires were structural ones. Structure fires transpired in “manufacturing or processing properties including utility, industrial, defense, agriculture, and mining properties.” Structural fires reported had by far the most civilian injuries and the related losses from these fires include about $1.5 billion in direct property damage. This does not consider lost time and effort that needed to be refocused towards the destructive events.

The use of flame retardant ductwork in facilities that are considered at risk is a smart and inexpensive way of mitigating what could otherwise be very damaging and costly.

Facilities that deal with “combustible dust” and other materials that can easily catch on fire should take precautions to reduce the possibility of fires. A combustible dust is any solid that has the ability to catch fire and explode when exposed to a detonation source. Combustible dusts include powders, flakes, fines, fibers (i.e., cotton), most solid organic materials (such as sugar, flour, grain, wood, etc.). These may not always be considered combustible, but they can burn or explode if the particles are the right concentrate and the environment is ripe for it.

The National Fire Protection Agency (NFPA) defines combustible dust as “a finely divided combustible particulate solid that presents a flash-fire hazard or explosion hazard when suspended in air or the process-specific oxidizing medium over a range of concentrations” in Standard 652-2019, The Fundamentals of Combustible Dust.

Burning Warehouse
Fire In The Warehouse

“Neoprene Flex – 2 Ply WS”

Neoprene Flex 2 ply WS two hoses black and yellow in color both pointing bottom right
Neoprene Flex 2 ply WS hose black and yellow in color U shaped

Material Handling Flame Retardant Ducts

When dry materials like grains and wood dust are processed and moved, they pose serious concerns to the facilities that house them. Dry ingredients are far more prone to combustion because of the lack of moisture in the product. Woodworking dust alone has a plethora of wood varieties and sizes that behave differently when moved or processed. Having flame-retardant parts within processing plants is helpful in mitigating the risk of growth in fires. A fire may happen, but having the resources to quelch it or to keep it to a limited space will reduce the possibility of injury, damage and costs.

We offer fire-rated ductwork that is designed to move dry bulk materials. Our fire retardant hoses range from neoprene dipped polyester ducts that offer greater flexibility and are often demanded by tight spaces. These are very durable canvas-like flexible ducting that have excellent flex-fatigue properties.
Neoprene Flex – 1 Ply Flexible Ducting
Neoprene Flex – 2 Ply Flex Hose
Neoprene Flex – 2 Ply WS Material Transfer Duct

These flame retardant hoses are recommended for light duty, low pressure applications and can be used to move bulk materials and/or light dust. As a class they are extremely flexible, with the thinner walled 1-ply version being more flexible, yet less durable. As the thickness of the duct’s wall increases, so does its durability, which makes for a less compressible and flexible hose.

The Neoprene coating offers excellent abrasion and chemical resistance and these flex ducts are available in sizes from 1.5-inch to 24-iunch in diameter. The Neoprene Flex series have a maximum temperature of 250°F.

“Neoprene Flex – 2 Ply”

Neoprene Flex 2ply Coiled Up

“Neoprene Flex – 2 Ply”

  • Good crush resistance and tensile strength
  • Neoprene coating offers excellent abrasion and chemical resistance

The “Neoprene Flex – 2 ply” industrial duct is recommended for dust control and material transfer applications. The large diameter flexible pipe is made using a strong double-ply neoprene coated polyester fabric with a spring steel wire helix. The intelligent construction and durable 2-ply neoprene wall allows these flex hoses to withstand abrasive dust and other harsh materials. This hose is recommended for use in a vast list of harsh conditions including dust collection, grinders, woodworking and furniture industries.

Each “Neoprene Flex – 2 ply” industrial duct has good crush resistance that allows it to be used in harsh environments. The flexible pipes tensile strength, or the maximum tension the material can withstand without tearing, is complemented by the excellent abrasion and chemical resistance offered by its neoprene coating. The “Neoprene Flex – 2 ply” flexible duct has good flexibility and is more durable than double ply cotton hoses. The flex hoses can handle both positive and negative pressures. Each industrial duct has a working temperature range of -40 F to +250 F and is listed as a UL 94 V-0 flame retardant product.

“Poly Fabric Flex – 1 ply”

$273.25$712.50
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 3, 4, 5, 6, 7, 8, 10, & 12

“Poly Fabric Flex – 2 ply”

$310.25$911.00
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 3, 4, 5, 6, 7, 8, 10, & 12

“Poly Fabric Flex Bridge”

$1,023.75$2,047.50
Lead Time 4-6 Weeks Temperature Range: -20°F to +180°F Sizes I.D. (in.): 12, 16, 18, 20, 22, & 24

Poly Fabric Flex – Series of Fire Rated Ducting

This series of fire rated ducts are made from PVC vinyl coated polyester fabric hose reinforced with a spring steel wire helix & external PVC wearstrip. The ductwork’s wearstrip gives additional external abrasion & drag resistance, which is useful if the hose is being moved around in rough environments. Since it is made with PVC, these fire-retardant hoses offer great chemical & moisture resistance
Poly Fabric Flex – 1 Ply Industrial Ducting
Poly Fabric Flex – 2 Ply Industrial Hose
Poly Fabric Flex (Bridge)

We also offer material handling hoses made with neoprene and polyurethane that are flame retardant materials. Neoprene and polyurethane are chemically resistant materials and offer excellent durability when faced with abrasion. These flexible ducts have excellent resistance to harsh chemicals, which makes a fire resistant hose a great choice for tasks requiring the movement of dry bulk and other abrasive materials. Both duct materials are known for their excellent resistance to weathering as well as their flexibility, providing you with the added benefit of extra protection without sacrificing the flexibility of your fire resistant hose. Wear strips and other reinforced hose safeguards are important because protecting the exterior of your flame retardant duct hose is virtually just as crucial as safeguarding the interior. Even the slightest tears or breaks in the material can lead to drastic losses of performance.

“Poly Fabric Flex – 2 Ply”

Poly Fabric Flex 2 ply Red and Black Cylinder
Poly Fabric Flex 2 Ply Flex U Shaped

“Poly Fabric Flex – 2 Ply”

  • Wearstrip offer additional external abrasion & drag resistance
  • Great moisture, mildew, & chemical resistance

The “Poly Fabric Flex – 2 ply” is a double-ply PVC vinyl coated polyester fabric industrial hose reinforced with a spring steel wire helix & external PVC wear strip. This hose provides efficient air-flow and is recommended for dust control applications. This double-ply commercial duct offers more abrasion resistance, a longer product life, and less down time for material transfer applications. This industrial hose can also be ordered with additional coatings that will provide even more abrasion resistance. The construction of the hose material on this commercial duct also provides great chemical and moisture resistance while the reinforced spring steel wire helix and external PVC wear-strip offers great external abrasion resistance for harsh environments.

The “Poly Fabric Flex – 2 ply” fabric ducting has a working temperature of – 20 to +180 degrees Fahrenheit. This gives users a wider range of temperature resistance in an affordable non-high temp hose! Clogs are prevented since this flexible hose has excellent flow characteristics with low friction loss because of the smooth internal structure. This industrial hose is constructed with UL 94 V-0 flame retardant hose material and is ideal for air, dust, fume, and light material movement.

“PVC Flexduct Heavy-Duty”

PVC Flexduct Heavy Duty Slightly Flexed
PVC Flexduct Heavy Duty Two Hoses

What Facilities are at Risk for Dust Fires?

When fine particulates that are flammable are moved through industrial machinery, they can be exposed to static buildup. Static buildup is when electric charges are exchanged between the surfaces of two objects that come into contact with each other. One entity takes on a positive charge and the other material will take the negative charge. It is due to this that static electricity builds up on the surface of substances. Materials like fertilizer, compost, grain, sugar, plastics, pharmaceuticals and woodworking chips/dust are some examples of at-risk products.

These types of materials are sometimes processed in small pieces like fertilizers and sometimes dust is a byproduct when materials are handled and processed. Dust is also created by abrasive blasting, cutting, crushing, mixing, sifting or screening dry materials. For example, fertilizers are generally sized between 1 and 5 mm. A uniform particle size allows for an even coverage on the field, which is why fertilizer is processed and handled to route the proper sizing. All of this movement of materials could be a source of static buildup or the fertilizer dust suspension in the air.

“PVC Flexduct Heavy-Duty”

PVC Flexduct Heavy Duty coiled up in light blue

“PVC Flexduct Heavy-Duty”

  • Excellent internal and external abrasion resistance
  • Good chemical & moisture resistance
  • Excellent choice for ventilation applications, dust & fume removal
  • Blue listed as UL 94V-0 flame retardant
  • Clear is manufactured with FDA acceptable materials

The “PVC Flexduct Heavy-Duty” is a heavyweight PVC wall hose reinforced with a spring steel wire helix offered in blue or clear. These flexible ducts are designed for light bulk material handling, heavy-duty ventilation applications, dust, and fume removal. This hose provides excellent internal and external abrasion resistance and is resistant to an array of chemicals and moisture. These heavy-duty hoses are great for applications where light materials will be handled and abrasion resistance is a must. Under normal conditions of use, the factor most strongly influencing the durability of PVC ductwork material is its resistance to oxidation by atmospheric oxygen. PVC (i.e., PVC Ductwork), having the molecular structure where the chlorine atom is bound to every other carbon chain, is highly resistant to oxidative reactions and maintains its performance over a long time.

Hose and Duct Accessories Collection

Bridge Clamps

$8.29$21.19
Sizes I.D. (in.): 2, 2.25, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, & 12

J-Lock Connectors

$46.20$70.91
Sizes I.D. (in.): 4, 5, 6, 8, 10, 12, 14, 16, 18, & 20

Screw Clamps

$9.20$435.97
Sizes I.D. (in.): 1.5, 1.75, 2, 2.25, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 12, 14, 16, 18, & 20

Stainless Steel Connectors

$30.27$50.59
Sizes I.D. (in.): 2, 3, 4, 5, 6, 7, 8, 10, & 12

What Does a UL Certification Mean?

UL is an acronym for Underwriters Laboratories, a private testing and certification enterprise that was founded in 1894 in Chicago. Underwriters Laboratories certify products that consumers and companies alike can count on in order to promote and certify safer products for both workers and consumers. Naturally UL approved components should be used where there is a danger or event of a fire. A flexible duct that is part of machinery or installed as an aftermarket hose onto or becomes a part in an apparatus needs to ultimately meet the UL standard for flammability. Using UL approved parts in OEM equipment or in the aftermarket, is good practice maintaining safety standards through the use of tested and certified products.

What is UL 94?
UL 94 is a flammability standard for plastics by Underwriters Laboratories. The standard classifies plastics in various groups according to how they burn. There are six UL 94 classifications. These classifications relate to materials commonly used in manufacturing enclosures, structural parts and insulators found in consumer electronic products (UL 94 5VA, 5VB, V-0, V-1, V-2, HB). The requirement for a UL 94 V-O is that the samples may not burn with flaming combustion for more than 10 seconds after either application of the test flame.

Meaning that the materials that the samples are made of do not act as fuel for the fire. Once the source of the fuel is gone, the fire should die off. Also, it is expected that the samples do not drip flaming bits that can ignite neighboring materials. Flame retardant ducts and their material makeup must follow these guidelines in order to get the UL 94 V-O approval.

“Acrylic Flex 325 Pharma”

Acryllic Flex 325 White laid out in U shape
Acryllic Flex 325 Pharma white laid out from right to left

“Acrylic Flex 325 Pharma”

  • Manufactured with FDA acceptable materials
  • Designed for applications with wide temperature ranges
  • Good abrasion resistance

The “Acrylic Flex 325 Pharma” high temperature hose is recommended for industrial air movement, dust control, and light bulk material handling applications. These white flexible hoses are manufactured with FDA approved materials, making for a food grade hose that is designed for applications with wide temperature ranges. Some unique properties of this product are: the hose is food grade, it is able to withstand up to 325 degrees Fahrenheit, and is available in a large diameter flexible hose size.

The “Acrylic Flex 325 Pharma” is available in a wide range of internal diameters. Otherwise known as I.D., internal diameter refers to the straight-line segment that passes through the center of the circle (i.e. the hose entry.) This hose can be purchased in I.D. sizes from 1.5 inches to 24 inches. Each high temperature hose is custom made to order and has a 2-4 week lead time. The white flexible hoses are sold in standard lengths of 25 ft, although custom lengths are available upon request. This high temperature hose has a plain cut end, but sewn end-cuffs are also available.

“Air Ventilator White”

$146.50$550.50
Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24

“Air Ventilator Orange”

$146.50$550.50
Some Sizes Out of Stock Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24

“Air Ventilator Heavy-Duty”

$183.50$597.50
Temperature Range: -20°F to +180°F Sizes I.D. (in.): 6, 8, 12, 14, 16, & 24

“Air Ventilator Black”

$146.50$550.50
Some Sizes Out of Stock Temperature Range: -20°F to +180°F Sizes I.D. (in.): 4, 6, 8, 10, 12, 14, 16, 18, 20, & 24

How Fires Burn and How We Can Help!

To burn, a fire needs three ingredients: Fuel, oxygen, and ignition. Fuels can comprise anything that is combustible, like wood, paper, and grains. A fire must be in an ecosystem where there is oxygen. Lastly a fire needs a “source of ignition.” Since the source of ignition is more often than not unknown, and since oxygen is a component of all ecosystems, we cannot proactively limit their presence. However, limiting the amount of fuel that the fire will feed on is the goal of UL. 94 V-O through the use of flame retardant materials in industrial and electrical apparatus. At Ducting.com, we offer a wide range of products that are made with materials that are officially classified as fire retardant. Our inventory of ducting products includes hoses intended for light-duty air applications to heavy-duty chemical and abrasive material transfer work. Take a look at our extensive catalog of flame retardant duct hose today to find the right tool for your job. If you have any questions about the classification of fire retardant materials or which ducting product is best for your needs, give one of our ducting experts a call today!

“Air Ventilator Yellow”

Air Ventilator Yellow Coiled up

“Air Ventilator Yellow”

  • Lightweight duct hose.
  • Highly compressible

This PVC flexible ducting hose is lightweight and cost effective. The Air Ventilator hoses are our least expensive hose products and are priced at a fraction of most hoses in their class. All hose material in the “Air Ventilator Yellow” flex duct has a temperature range of-20 to +180 degrees Fahrenheit for industrial air movement. Each section of the hose material is highly compressible and standard lengths are 25 feet. The flex duct can easily retract so it can be compressed from its full length down to just three feet. This makes transportation and storage convenient, especially when the hose is used for seasonal applications. These lightweight hoses are available in several different sizes, including 4, 6, 8, 10, 12, 16, 18, 20, and 24 inch. This flex duct is generally inventoried in the aforementioned sizes and will ship within 24 hours of an order. In addition, all sizes of the “Air Ventilator Yellow” can ship via FedEx Ground, making for a less expensive fulfillment option.

This flexible ducting hose is ideal for mobile chillers, light dust movement and general air ventilation. The flex duct has a place in several different industries from aerospace, air duct cleaning, A/C Ventilation, blowers and chillers, confined space ventilation, dehumidification, mining, pet training hose and smoke ejectors. If you have any questions or need further assistance, please do not hesitate to contact one of our ducting experts today.

Short Length Hoses Interchangeable
Overstock Inventory Interchangeable