LANGLI PVC Request a Catalog LANGLI PVC Request a Catalog Precision-moulded electrical connection solutions engineered to BS EN 61386 and DIN standards. Direct factory supply with full customizable specs.
As global infrastructure upgrades gain momentum, electrical wiring management is experiencing a structural paradigm shift. Metallic junction boxes and conduit fittings are increasingly being replaced by engineered high-impact unplasticized Polyvinyl Chloride (PVC-U) joint box systems due to superior electrical insulation, environmental resistance, and life-cycle cost efficiency.
Modern electrical installations require non-conductive, self-extinguishing housing. Premium grade PVC-U provides complete dielectric breakdown resistance, effectively eliminating stray current hazards and ground-fault leakage common in aging steel enclosure systems.
International building codes (UL94 V-0, BS EN 61386-21) strictly mandate flame-retardant enclosures. Advanced joint box systems are formulated to self-extinguish within 30 seconds without generating flaming droplets, preventing flame propagation across drywall voids.
With engineering firms managing multi-region projects, procurement managers require unified joint box dimensions that accommodate metric (16mm to 50mm) and imperial (1/2" to 2") conduit knock-outs alongside mini to macro cable trunking profiles (10x10mm to 200x100mm).
Commercial contractors, electrical wholesalers, and OEM brands encounter severe operational friction when sourcing joint boxes and trunking accessories from unverified suppliers. Below is how our factory-integrated model solves core procurement challenges.
Technical data for project engineering specification sheets. All products undergo stringent pre-shipment dimensional and mechanical testing.
| System Component | Dimension / Size Range | Material Composition | Standard Compliance | Operational Temp Range |
|---|---|---|---|---|
| Circular Electrical Joint Box | 16mm, 20mm, 25mm, 32mm (1 to 4 Way Entries) | Unplasticized Polyvinyl Chloride (PVC-U) | BS 4607 / BS EN 61386-21 | -15°C to +60°C |
| Surface & Flush Switch Boxes | 1 Gang, 2 Gang, 3 Gang, 4 Gang (86x86, BS Pattern) | Self-Extinguishing Flame Retardant Plastic | GB 17466.1 / CE Certified | -10°C to +65°C |
| Electrical Cable Trunking Body | 10x10mm up to 200x100mm (0.8mm - 1.5mm Wall) | High-Impact Rigid PVC with Adhesive Base | RoHS 2.0 / Directive 2011/65/EU | -20°C to +70°C |
| Trunking Couplers & Fittings | Flat Tees, Internal/External Angles, End Caps | Injection Moulded Polymer Matrix | BS EN 50085 Series | -15°C to +60°C |
| Heavy Gauge Rigid Conduit | 16mm to 50mm (2.9m / 3m Standard Length) | UV-Stabilized Weatherproof PVC-U | BS EN 61386 Light / Heavy Gauge | -25°C to +75°C |
Engineered to excel across diverse build environments, providing safe electrical distribution from residential high-rises to aggressive chemical plant interiors.
Flush-mounted multi-gang switch boxes coupled with 20mm/25mm loop-in circular joint boxes allow rapid concealed wiring across concrete slab structures. High insulation prevents signal interference for structured cabling lines.
Heavy-duty cable trunking ducts (100x50mm to 200x100mm) fitted with snap-on covers isolate high-voltage power feeds from control wiring. Chemically inert PVC-U withstands exposure to alkaline and acid vapours in chemical processing floors.
UV-stabilized outdoor surface joint boxes and rigid orange/white conduit lines maintain tensile strength under prolonged direct sunlight exposure, preserving connection integrity for solar inverter arrays.
Located in Leliu Town, Shunde District, Foshan City—the global hub of polymer processing—Foshan Shunde Langli Hardware Electrical PVC Co., Ltd. operates a vertically integrated production ecosystem.
Founded in 1989, Langli maintains complete control over raw material compounding, precision mould tooling, automated injection moulding, and automated packaging.
CE Mark Certificate
CE Test Report P1
CE Test Report P2
RoHS Compliance P1
RoHS Compliance P2
Langli is investing in next-generation materials science and automated smart-factory processes to lead the electrical containment industry into a sustainable future.
Developing eco-friendly polymer formulations that eliminate halogen gases, ensuring minimal toxicity and smoke density for public transport and hospital infrastructure tenders.
Redesigning joint box lids and trunking clips with tool-less click-lock mechanisms, reducing contractor field installation labor by up to 35% compared to screw-down covers.
Integrating modern inline sprue recyclers to reprocess 100% of internal manufacturing off-cuts into non-structural secondary components, driving down carbon footprint.
Comprehensive engineering and logistics clarity for enterprise buyers, distributors, and specifiers.
Explore our extended catalog of high-impact PVC trunking bodies, decorative channels, and electrical junction accessories.
Submit your BOM product list, required dimensional standards, and target port of delivery. Our export engineering office responds with complete CBM data, itemized pricing, and sample availability within 24 hours.
Access our complete technical specification matrices, carton packing volume guides, and physical properties datasheet for project submittals.
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