Flexible PVC Ventilation Duct for Pig Farms

• Flexible ventilation duct designed for pig houses and livestock farm ventilation systems.
• Thickened three-layer reinforced PVC mesh fabric construction.
• Available in approximately 400 mm and 500 mm nominal diameters.
• Listed wall thickness of approximately 0.38 mm.
• Good air sealing helps reduce unnecessary airflow leakage.
• Waterproof construction is suitable for humid livestock environments.
• Flame-retardant material configuration according to the listed product specification.
• Resistance to acids and alkalis supports use in demanding agricultural environments.
• Heavy spiral wire reinforcement helps maintain the duct shape during airflow.
• Flexible structure allows bending around building structures and equipment.
• Compressible design reduces storage and transportation volume.
• Black abrasion-resistant outer strip protects high-contact areas of the duct.
• Suitable for connection with compatible ventilation fans and air-handling equipment.
• Useful for air supply, exhaust, equipment cooling, and localized ventilation.
• Can be customized according to ventilation system layout and project requirements.

• Product Type: Flexible Ventilation Air Duct
• Primary Application: Air Supply and Exhaust Ventilation
• Main Material: Three-Layer Reinforced PVC Mesh Fabric
• Available Diameter: Approximately 500 mm / 400 mm
• Listed Material Thickness: Approximately 0.38 mm
• Internal Support: Heavy Spiral Wire Frame
• External Protection: Black Abrasion-Resistant Protective Strip
• Structure: Flexible / Compressible / Extendable
• Sealing: Air-Tight Flexible Duct Construction
• Water Resistance: Waterproof
• Flame Resistance: Flame-Retardant Configuration
• Chemical Resistance: Resistant to Acids and Alkalis
• Listed Maximum Heat Resistance: Up to Approximately 120°C
• Installation: Flexible Fan Connection / Air Transfer Ducting
• Typical Environment: Pig House / Livestock Building / Farm Workshop / Agricultural Facility

The current product specification lists heat resistance up to approximately 120°C. Continuous operating temperature can differ from short-term temperature resistance and should be confirmed before use in high-temperature applications. Exact duct length, wire diameter, pressure rating, flame-retardant standard, connection method, and customized sizes should be confirmed before ordering.

• Fresh-air transfer in commercial pig houses.
• Fan-assisted ventilation in farrowing houses.
• Ventilation of nursery pig buildings.
• Air movement in gestation and breeding sow houses.
• Ventilation of grower and finishing pig houses.
• Temporary ventilation during pig house construction or renovation.
• Connection between portable fans and livestock buildings.
• Localized air supply to equipment or work areas.
• Exhaust-air transfer from enclosed farm spaces.
• Livestock equipment maintenance and emergency ventilation.
• Agricultural warehouses and workshops.
• Other livestock and poultry ventilation applications using compatible fan systems.

• Confirm the required duct diameter according to the fan outlet and ventilation design.
• Inspect the PVC fabric, spiral wire, protective strip, and connection ends before installation.
• Extend the duct gradually without twisting or overstretching the flexible structure.
• Connect the duct securely to the compatible fan outlet, inlet adapter, flange, or ventilation opening.
• Use suitable clamps, straps, ropes, or connectors to prevent air leakage and accidental separation.
• Support long duct runs at appropriate intervals to reduce excessive sagging.
• Avoid unnecessary sharp bends because they increase airflow resistance.
• Keep the duct away from sharp metal edges or moving machinery.
• Verify that the fan airflow direction matches the intended air-supply or exhaust application.
• Run the fan and inspect the entire duct for collapse, excessive movement, leakage, or abnormal vibration.

• Inspect the duct periodically for tears, punctures, abrasion, loose wire, and damaged seams.
• Check connection clamps and suspension supports regularly.
• Remove accumulated dust and debris when required to maintain airflow.
• Clean the duct using methods compatible with PVC reinforced fabric.
• Avoid aggressive solvents that may damage the PVC coating or reinforcement.
• Repair or replace severely damaged sections before continued operation.
• Do not operate the duct where exposed wire could contact animals, personnel, or electrical equipment.
• Compress and store the duct in a dry area when it is not in use.
• Keep stored ducting away from sharp objects and unnecessary direct sunlight.

Q: What is this ventilation duct mainly used for?
A: It is designed to transfer supply or exhaust air between a compatible fan and the required area of a pig house, livestock building, workshop, or agricultural facility.

Q: What material is the duct made from?
A: The listed material is thickened three-layer reinforced PVC mesh fabric.

Q: What diameters are available?
A: The current specification lists approximately 400 mm and 500 mm diameters.

Q: What is the listed material thickness?
A: The listed PVC reinforced fabric thickness is approximately 0.38 mm.

Q: Why does the duct contain spiral wire?
A: The spiral wire supports the flexible duct wall, helps maintain the airflow passage, and allows the hose to bend and extend without relying on a rigid pipe structure.

Q: What is the black strip around the outside of the duct?
A: It is an abrasion-resistant protective strip positioned around the spiral structure to help protect the duct from wear during handling and installation.

Q: Is the duct waterproof?
A: Yes. Waterproof performance is listed as one of the product characteristics.

Q: Is the material flame retardant?
A: The current product specification lists the duct as flame retardant. Specific fire-performance certification should be confirmed if a project requires a particular international standard.

Q: Can the duct resist farm chemicals?
A: The product is listed as resistant to acids and alkalis, but compatibility with concentrated disinfectants or specific chemicals should be confirmed before prolonged exposure.

Q: Can the duct operate continuously at 120°C?
A: The product information lists heat resistance up to approximately 120°C, but this should not automatically be interpreted as the recommended continuous operating temperature. Continuous high-temperature use should be confirmed before ordering.

Q: Can the duct be compressed for storage?
A: Yes. Its flexible spiral structure allows the duct to be compressed, reducing storage and transportation space.

Q: How should the correct duct diameter be selected?
A: Diameter should be selected according to fan airflow, static pressure, duct length, number of bends, connection size, and required air velocity. A ventilation engineer should verify the design for larger commercial projects.

Q: Is this the same as a perforated air-distribution tube?
A: No. This product is primarily a flexible air-transfer duct. A perforated positive-pressure distribution tube uses engineered outlet holes to distribute air along the building and is a different ventilation product.

Q: Where is this flexible duct typically used?
A: It is suitable for pig houses, livestock buildings, agricultural workshops, temporary ventilation projects, equipment maintenance areas, warehouses, and compatible fan-assisted ventilation systems.