Name: 340GSM Air Duct Hose PVC Laminated Polyester Fabric
Brand: Zhejiang MSD Group Share Co., Ltd.

340GSM Air Duct Hose PVC Laminated Polyester Fabric

340GSM air duct hose is a very popular type among many kinds of air duct hoses. We can meet, M1,M2,B1,B2,NFPA-701 frame retardant and anti statistic. With REACH,RoHS 16P free certifications, the air duct hoses made from our material could be sold to the whole world market.

Technical Data Sheet

Properties	Units	Test method	Average value
Base Fabric Yarn	Denier		300 x 500D
Base Fabric Density	Thread/inch	FZ/T01003	18x12
Finished Fabric Weight	Gram/m2	FZ/T01003	340±3%
Thickness	mm	FZ/T01003	0.32±3%
Tensile strength at MD	N/5cm	GB/T1040	600
Tensile strength at CD	N/5cm	GB/T1040	420
Tearing Strength at MD	N/5cm	GB/T16578	85
Tearing Strength at CD	N/5cm	GB/T16578	70
Peeling Strength	N/5cm	GB/T3917	20
Temperature range	℃		-30 ~ 70
Anti-statistic			Optional
Environment friendly			REACH,RoHS, 16P free
Frame Retardant			M1,M2,B1,B2, NFPA-701

Air duct · hose · ventilation

340GSM Air Duct Hose
PVC Laminated Polyester Fabric

Lightweight PVC laminated fabric engineered for flexible air duct hose, ventilation systems, and industrial ducting

340 GSM

1000D Denier

B1 Fire

-20 to 80 °C

Product overview

Flexible duct hose fabric

340GSM Air Duct Hose PVC Laminated Polyester Fabric is a lightweight flexible composite material engineered for air duct hose and ventilation applications. The fabric features a high-tenacity polyester base cloth with a specialized PVC lamination that provides airtight performance and flexibility. The total weight of 340 grams per square meter ensures excellent flexibility for tight bending radius while maintaining structural integrity under pressure. The PVC coating is formulated with flame retardant additives and offers resistance to oils, chemicals, and temperature extremes. This material is ideal for flexible air ducting in HVAC systems, industrial ventilation, and extraction systems where lightweight, durable, and airtight solutions are required.

Core advantages

Flexibility

340GSM weight provides excellent flexibility for tight radius bending and installation in confined spaces.

Airtight seal

PVC lamination creates airtight barrier. Prevents air leakage in ventilation systems.

Chemical resistance

Resists oils, acids, and alkalis. Suitable for industrial extraction applications.

Temperature stability

Operates from -20°C to 80°C. Maintains flexibility across temperature range.

Technical specifications

Base fabric 1000D / 1000D

Total weight 340 GSM (±15g)

Coating type PVC lamination

Breaking strength ≥ 2500/2200 N/5cm

Tear strength ≥ 300/280 N

Fire rating B1 (GB 8624)

Temperature range -20°C to 80°C

Application scenarios

HVAC Flexible air ducts, ventilation hoses, air handling systems

Industrial Fume extraction, dust collection, exhaust systems

Automotive Air intake hoses, cabin ventilation ducts

Marine Bilge ventilation, engine room air ducts

Agricultural Grain drying ducts, ventilation systems

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Handling guidelines

Store in dry, cool conditions away from direct sunlight. Avoid sharp edges that may puncture the fabric. Use appropriate fittings for connection. Inspect regularly for wear at connection points.

Frequently asked questions

What is the maximum operating pressure for this duct fabric?

The fabric is designed for low to medium pressure applications up to 3,000 Pa. For higher pressure applications, reinforced versions with additional layers or wire helix support are recommended.

Can this fabric be used for outdoor ducting?

Short-term outdoor use is possible, but UV degradation will occur over time. For permanent outdoor applications, we recommend the UV-stabilized version with enhanced weathering resistance.

How is the fabric joined to form duct hose?

The fabric is typically helically wound with wire reinforcement and heat-sealed at the seams. Heat welding and high-frequency welding are the primary joining methods. Sewn seams with sealing tape are also used for some applications.

What is the minimum bending radius for this material?

The minimum bending radius is typically 1.5 times the duct diameter. The lightweight 340GSM construction provides excellent flexibility for tight-radius installations.