LANGLI PVC Request a Catalog LANGLI PVC Request a Catalog Explore our top-tier manufacturing lines engineered for heavy-duty electrical cable protection, air circulation ducting, and structural wiring management.
In modern industrial ventilation, commercial HVAC engineering, and high-density electrical infrastructure, Polyvinyl Chloride (PVC) air ducting and cable trunking systems have evolved from simple passive enclosures into highly technical, fire-retardant structural assets. As global building codes enforce stricter thermal, environmental, and flammability compliance, top-tier engineering contractors and enterprise purchasing teams demand higher precision in raw resin compounding, wall-thickness uniformity, and cold-impact resilience.
Formulated with premium unplasticized PVC (PVC-U) and halogenated flame inhibitors achieving UL94 V-0 flame ratings. Our ducting self-extinguishes within 5 seconds of flame removal.
Impervious to harsh industrial fumes, inorganic acids, alkalis, and atmospheric humidity. Ideal for chemical plants, data centers, coastal installations, and cleanrooms.
Engineered with low internal roughness coefficients to minimize aerodynamic pressure loss in air ducting and friction forces during multi-conductor cable pulling.
Global procurement teams face constant pressure to standardize technical specifications across multi-regional engineering projects. Key performance indicators such as tensile strength, Vicat softening temperature, dielectric breakdown voltage, and drop-weight impact resistance dictate the long-term reliability of installed PVC air ducting and cable wireways.
| Physical & Chemical Property | Testing Standard / Specification | Langli Factory Technical Target | Application Advantage |
|---|---|---|---|
| Density / Material Grade | ISO 1183 / Rigid PVC-U Compound | 1.40 – 1.45 g/cm³ | High mechanical strength & structural rigidity |
| Flammability Rating | UL 94 / BS 4607 Part 2 | V-0 (Self-Extinguishing < 5s) | Prevents flame propagation in electrical shafts |
| Vicat Softening Temperature | ISO 306 / Method B50 | ≥ 82 °C | Thermal stability under continuous operational loads |
| Drop Weight Impact Test | BS EN 61386-1 (-5 °C to +60 °C) | No cracking or structural failure | Extreme durability during cold climate site handling |
| Dielectric Strength | IEC 60243-1 | ≥ 25 kV/mm | Complete electrical isolation & flashover protection |
From data center hyper-scale containment to cleanroom exhaust ducting, Foshan Shunde Langli Hardware Electrical PVC Co., Ltd. delivers customized extrusions and injection-moulded systems.
High-density fiber optic ducting and overhead cable trunking designed for ultra-clean routing, rapid bend radiuses, and zero dust emission requirements.
Decorative surface-mounted television cable ducts, floor trunking, and concealed wall conduits that integrate seamlessly with interior architectural layouts.
Rigid PVC air duct systems engineered to handle corrosive off-gas, acid-laden air stream exhaust, and positive-pressure climate control ventilation lines.
Founded in 1989 in Leliu Town, Shunde District, Foshan City—the world's most dense plastics engineering cluster—Foshan Shunde Langli Hardware Electrical PVC Co., Ltd. operates as a fully integrated compounding, moulding, and extrusion facility. Serving over 60 countries across Europe, the Middle East, South America, Africa, and Southeast Asia, 97% of our entire production volume is exported overseas.
Our facility houses 32 heavy-duty high-speed injection moulding machines alongside 900+ proprietary mould sets. This vast tooling infrastructure allows global clients to consolidate complete project procurement—conduit pipes, circular junction boxes, inspection bends, adaptors, and multi-size trunking—into a single container load with guaranteed color consistency and matching socket tolerances.
Fully verified CE Conformity and RoHS Substance Testing reports on file. Compliant with BS 4607, BS EN 61386, DIN 8061/8062, and ASTM specifications.
In-house high-resolution inkjet and laser marking directly on duct profiles. Custom master-carton printing, barcode integration, and private brand packaging.
Our logistics team prepares itemized CBM calculations and nested loading plans to maximize container space utilization, minimizing ocean freight cost per unit.
Strategic focus areas driving our research, resin compounding, and automated manufacturing expansion over the next decade.
Complete phase-out of heavy metal heat stabilizers in favor of 100% Calcium-Zinc (Ca-Zn) organic eco-compounds across all extruded PVC air ducts.
Integration of silver-ion and Nano-TiO2 additives during raw extrusion to inhibit bacterial growth inside HVAC air circulation ductwork.
Expanded commercial production of Low Smoke Zero Halogen (LSZH) trunking profiles specifically for subterranean railway and airport infrastructure.
Embedded micro-conduits designed to house fiber-optic temperature sensors for real-time thermal monitoring of data center cable bundles.
Complete line of PVC wireway ducts, cable containment channels, and specialized fittings manufactured for direct wholesale supply.
Detailed technical answers covering customization, regulatory testing, production lead times, and shipping logistics.
