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  • FLEXIBLE DUCTING PRODUCT1duct™

    All-PTFE Flexible Duct with Wear-Resistant Metal Coil

    Extreme flexibility with a 6:1 compression ratio. Manufactured with FM 4910 Listed Materials. Galvanized or stainless metal coil exterior.

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    FM 4910 Listed · Temp up to 600°F (316°C) · 3"–12" diameters

    1duct flexible duct
  • FLEXIBLE DUCTING PRODUCTChemduit®

    The Only FM 4923-Approved Flexible Fume Exhaust Duct

    Smooth PTFE inner wall with encapsulated metal coil. The only flexible ductwork product with FM 4923 Approval for Fume Exhaust Duct Systems. Rated for aggressive chemical environments.

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    FM 4910 Listed · FM 4923 Approved · Smooth inner wall · Chlorine-rated

    Chemduit flexible fume exhaust duct
  • FLEXIBLE DUCTING PRODUCTTFE Duct™

    100% PTFE Flexible Duct — Zero Metal Contact

    No metal components anywhere in the construction. PTFE support rings eliminate corrosion risk in chlorine and high-purity environments. Ideal for semiconductor, pharmaceutical, and chlor-alkali applications.

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    FM 4910 Listed · Temp up to 600°F (316°C) · All-PTFE construction · No metal components

    TFE Duct all-PTFE flexible duct

Industries Served

TCI flexible ducting solutions are engineered for demanding environments across multiple sectors.

Semiconductor

Ultra-pure fluoropolymer ducting for corrosive chemical vapor handling in semiconductor fabrication.

fab · ultra-pure · chemical resistance

Chemical Processing

Chemical-resistant ducting for corrosive fume and vapor transport.

acid fumes · solvent vapors · corrosion resistant

Aerospace

Lightweight, flexible solutions meeting stringent aerospace specifications.

mil-spec · lightweight · low-flammability

HVAC & Ventilation

High Purity air handling.

air handling · exhaust · supply air

Food & Beverage

FDA-compliant materials for hygienic air and fume handling in food production.

FDA · food-safe · hygienic

Pharmaceutical

Clean-room compatible ducting for controlled environments.

GMP · clean room · contamination control

Versatile reliability for flexible ducting

See how 1duct™, Chemduit®, and TFE Duct™ each solve different installation and performance challenges — from cleanrooms to chemical processing to the most demanding industrial environments.

See Full Spec Sheet →

Certifications & Standards

Our products comply with leading international standards. Click any badge to download the certificate.

ASTM E84 / UL 723Flame and Smoke Rated FM SpecifiedFM 4910 FM 4923 approvedFor Fume Exhaust ISO 9001Quality Mgmt NFPA 318Compliance

Technical Comparison

Find the right TCI product for your application.

 
 
1duct™
 
Chemduit®
 
TFE Duct™
Temperature
-425°F to 600°F
-425°F to 600°F
-425°F to 600°F
Chemical Resist.
Moderate - Excellent
Excellent
Superior
Compliance
FM 4910 Specified Material
ASTM E84 / UL 723 Flame & Smoke Rated
UBC 8-1 · NFPA 318
FM 4923 Approved
FM 4910 Specified Material
ASTM E84 / UL 723 Flame & Smoke Rated
UBC 8-1 · NFPA 318 · FDA
FM 4910 Specified Material
ASTM E84 / UL 723 Flame & Smoke Rated
UBC 8-1 · NFPA 318 · FDA
Min Bend Radius
Small bend radius
Small bend radius (smooth wall design)
Larger bend radius
Flexibility
Extreme flexibility, 6:1 compression ratio
Extreme flexibility
Good flexibility, crush-proof
Unit Weight
Medium
Light
Medium
Size Offering
3" - 12"
1.5" - 24"
3" - 24"
Support Structure
Galvanized or Stainless Steel crimped strip and wire
Stainless Steel wire
PTFE Rings
 
Data Sheet
Data Sheet
Data Sheet
1duct™
Temperature-425°F to 600°F
Chemical Resist.Moderate - Excellent
ComplianceFM 4910 Specified Material, ASTM E84 / UL 723 Flame & Smoke Rated, UBC 8-1 · NFPA 318
Min Bend RadiusSmall bend radius
FlexibilityExtreme flexibility, 6:1 compression ratio
Unit WeightMedium
Size Offering3" - 12"
Support StructureGalvanized or Stainless Steel crimped strip and wire
↓ Data Sheet
Chemduit®
Temperature-425°F to 600°F
Chemical Resist.Excellent
ComplianceFM 4923 Approved, FM 4910 Specified Material, ASTM E84 / UL 723 Flame & Smoke Rated, UBC 8-1 · NFPA 318 · FDA
Min Bend RadiusSmall bend radius (smooth wall design)
FlexibilityExtreme flexibility
Unit WeightLight
Size Offering1.5" - 24"
Support StructureStainless Steel wire
↓ Data Sheet
TFE Duct™
Temperature-425°F to 600°F
Chemical Resist.Superior
ComplianceFM 4910 Specified Material, ASTM E84 / UL 723 Flame & Smoke Rated, UBC 8-1 · NFPA 318 · FDA
Min Bend RadiusLarger bend radius
FlexibilityGood flexibility, crush-proof
Unit WeightMedium
Size Offering3" - 24"
Support StructurePTFE Rings
↓ Data Sheet

Resources

1duct™
Chemduit®
TFE Duct™

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40+Years in BusinessTrusted expertise across industrial sectors
5,000+Products ShippedGlobal clients served annually
3Patented InnovationsIndustry-first flexible duct technologies

“TCI’s 1duct™ solved our airflow challenges in a way no other product could. The installation was seamless and the performance has been outstanding for three years running.”

James R. SullivanChief Engineer, Meridian Industrial Systems

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Material

Frequently Asked Questions

Everything you need to know about TCI flexible ducting products and ordering.

Chemical Processing

TCI's PTFE flexible duct product is resistant to all chemicals on the pH scale.

Often times chemical deposits can buildup inside the metal ducts causing corrosion and the ultimate breakdown of the metal wall.

All chemicals on the pH scale.

For most situations the duct will far exceed the life of the equipment pending proper cleaning and maintenance.

Incorrect selection of the proper duct design. For high corrosive environments we recommend TCI's TFE duct which is 100% PTFE or our Chemduit duct that utilizes a stainless steel support wire that is fully encapsulated between two layers of PTFE CrossFilm. We also have our 1duct flexible duct design with a stainless steel support helix for corrosive applications.

Food & Pharmaceutical

TCI's high purity PTFE flexible ducts.

TCI's PTFE CrossFilm flexible ducts are FDA compliant.

Contamination can be prevented by using TCI's high purity PTFE CrossFilm ducts with the most leak free connection options.

TCI's high purity PTFE CrossFilm that is used to construct our flexible duct designs is best to use with food manufacturing.

Yes, TCI's PTFE flexible ducts can be cleaned and sanitized.

Industrial Applications

TCI's PTFE flexible duct product that has a maximum operating temperature of 600°F (316°C).

PTFE flexible duct can withstand all chemicals on the pH scale and has a higher temp limit as opposed to silicone flexible ducting.

You should replace flexible ducting when the duct wall breaks down due to corrosion or flex cracking causing holes or weak sections in the duct making it unstable.

You should select your flexible duct based on the media that is traveling through the duct along with the environment that the duct is being used in. Other considerations include temperature exposure, UV exposure, and flame and smoke ratings.

Ducts generally fail due to the improper selection of the correct duct material for the application to adequately handle extreme chemical, temperature, and UV exposure.

Semiconductor

TCI's Chemduit and TFE ducts.

FM 4910 is a fire safety standard developed by Factory Mutual (FM Approvals) for materials used in cleanroom and semiconductor manufacturing environments, designed to limit flame spread and smoke contamination in case of fire. FM 4923 is a FM Global standard that sets performance requirements for fume exhaust ducts used in industrial and cleanroom environments.

Use the correct flexible duct for the application. For high corrosive environments we recommend TCI's TFE duct which is 100% PTFE or our Chemduit duct that utilizes a stainless steel support wire that is fully encapsulated between two layers of PTFE CrossFilm. We also have our 1duct flexible duct design with a stainless steel support helix for corrosive applications.

TCI's PTFE CrossFilm that is used as the duct wall in all of our flexible duct products.

You should select your flexible duct based on the media that is traveling through the duct along with the environment that the duct is being used in. Other considerations include temperature exposure, UV exposure, and flame and smoke ratings.

Cleanrooms

TCI's PTFE flexible ducting is preferred in cleanroom environments because it is a high purity product specifically designed for harsh chemical and temperature applications.

TCI's PTFE flexible ducts cannot generate particles in cleanrooms because they are produced with 100% PTFE CrossFilm duct walls that contain no fiberglass woven fabric material that could contaminate these applications.

TCI's PTFE CrossFilm is the best duct material for these applications because it is a high purity material that is tested to FM 4910, ASTM E84, UL 723 and complies with NFPA 318.

Contamination can be prevented by using TCI's high purity PTFE CrossFilm ducts with the most leak free connection options.

TCI's PTFE CrossFilm that is used as the duct wall in all of our flexible duct products.

General Questions

TCI's PTFE flexible duct is constructed of 100% PTFE CrossFilm making up the duct wall. PTFE or Polytetrafluoroethylene, is a high-performance fluoropolymer with exceptional chemical resistance, low friction, and extreme temperature properties. PTFE is widely recognized for its use in non-stick coatings, such as Teflon®, and is utilized in various industries due to its versatility and durability.

You should select your flexible duct based on the media that is traveling through the duct along with the environment that the duct is being used in. Other considerations include temperature exposure, UV exposure, and flame and smoke ratings.

TCI's PTFE flexible duct product is resistant to all chemicals on the pH scale.

PTFE flexible duct can withstand all chemicals on the pH scale and has a higher temp limit than other flexible ductings.

For most situations the duct will far exceed the life of the equipment pending proper cleaning and maintenance.

Ducts generally fail due to the improper selection of the correct duct material for the application to adequately handle extreme chemical, temperature, and UV exposure.

You should replace flexible ducting when the duct wall breaks down due to corrosion or flex cracking causing holes or weak sections in the duct making it unstable.

TCI's PTFE flexible ducts are rated for high temperatures of 600°F (316°C).

Cleanroom, Semiconductor, Chemical, Laboratory, and any harsh environment application.

All PTFE flexible ducts last much longer than PTFE coated fiberglass flexible ducts because moisture can wick into the fiberglass at the edges of the PTFE coated material and will break down and corrode the fiberglass over time causing the material to breakdown and delaminate. All PTFE flexible ducts will not allow moisture to permeate the film or through the edges so the material will not corrode or breakdown.

TCI manufactures PTFE flexible ducting suitable for use as flexible hose ducting, clean room ducting, semiconductor ducting, food grade ducting, industrial ducting, and as flexible ventilation ducts. Our CrossFilm™ laminate film produces 100% PTFE ducting with a non-stick surface, resistance to most processing chemicals, and the ability to operate continuously at temperatures up to 600°F (316°C). CrossFilm™ flexible ducting is the optimal solution in situations requiring harsh C-I-P chemicals and extreme temperatures. Our proprietary cross-laminated structure makes CrossFilm™ flexible ducts resistant to tearing and they can be used in any wet or dry application, regardless of the chemical exposure. They are also FDA, 3-A, and EC compliant for food contact. TCI flexible ducting can be customized in terms of conductivity, thickness, abrasion-resistance, and flexibility.

TCI 1duct all-PTFE flexible duct with metal coil

TCI 1duct™ is an all-PTFE flexible duct with a wear-resistant metal coil, suitable for all applications. 1duct™ eliminates the need to use less-capable flexible ducting products made with PTFE-coated fiberglass and silicone-coated fiberglass, which have limited flexing capability and can be corroded. 1duct™ is made using TCI's all-PTFE CrossFilm™ material which has an excellent flexing life and corrosion resistance. 1duct™ CrossFilm™ material remains non-porous to ensure containment, unlike fiberglass-reinforced materials which become porous after flexing. 1duct™ can also include an electrically-conductive surface material to prevent the build-up of static charge.

1duct™ can be made with a galvanized or stainless metal coil that protects against abrasion and a bridge clamp is used to achieve a tight attachment to a pipe. Because the design consists only of PTFE and metal, 1duct™ is the ideal flexible ducting product for applications with fire rating test concerns like ASTM E84, UBC 8-1, and UL 723. 1duct™ is extremely flexible with a 6 to 1 compression ratio and a small bend radius. It is unaffected by UV exposure and will not grow fungus.

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TCI Chemduit all-PTFE flexible duct with encapsulated coil

Chemduit® is an all-PTFE flexible duct with an encapsulated metal coil and smooth inner wall. Chemduit® can be used in any chemical environment. It is unaffected by UV exposure and will not grow fungus. TCI can customize Chemduit® ducting to include an electrically-conductive surface material, which would prevent the build-up of static charge. Some applications for Chemduit® ducting include clean rooms, chemical plants, food plants, fume exhaustion, high temperature environments, pharmaceutics, fume control, and pollution control.

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TCI TFE Duct all-PTFE flexible ducting with PTFE support rings

TFE Duct™ is an all-PTFE flexible ducting product with PTFE support rings for use in any chemical environment. The entire duct contains no metal, eliminating chemical compatibility concerns. TFE Duct™ can even be used in chlorine applications where permeation of the chlorine molecule often corrodes metal support coils of common flexible ducting products. Market opportunities for TFE Duct™ include chlor-alkali, clean rooms, and chemical plants, among others.

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