LANGLI PVC Request a Catalog LANGLI PVC Request a Catalog Explore our export-grade, precision-moulded electrical installation products engineered to meet international standard compliance across global infrastructure projects.
With over three decades of industrial manufacturing heritage in Foshan, Guangdong, Foshan Shunde Langli Hardware Electrical PVC Co., Ltd. represents the benchmark in unplasticized polyvinyl chloride (PVC-U) electrical containment systems.
In modern industrial, commercial, and residential infrastructure projects, the reliability of electrical cable containment directly impacts life safety, system longevity, and regulatory compliance. As a premier High-Quality PVC U Fitting Supplier, Langli integrates material science expertise, high-precision injection tooling, and smart manufacturing process controls to deliver zero-defect conduit fittings, cable trunking accessories, junction boxes, and switch enclosures.
Unplasticized Polyvinyl Chloride (PVC-U) has long established itself as the preferred polymer compound for electrical protection. Unlike plasticized PVC variations, PVC-U is void of volatile plasticizer additives, granting it exceptional rigidity, non-conductive dielectric strength, superior tensile elasticity, and high chemical resistance against acid and alkaline ambient soil conditions. However, achieving structural consistency, thermal endurance, and faultless socket tolerances across millions of molded units requires an advanced operational architecture.
How our Foshan-based automated production lines provide international buyers with uncompromised quality, unmatched scale, and cost optimization.
We operate closed-loop centralized gravimetric feeding systems that blend high-purity virgin PVC resin with non-toxic calcium-zinc (Ca/Zn) eco-stabilizers and impact modifiers, eliminating human batching error.
Our in-house tooling center uses CNC machining centers and EDM spark erosion to craft multi-cavity injection moulds capable of sub-millimeter dimensional retention across millions of duty cycles.
Equipped with 32 automated injection moulding units and robotic pick-and-place arms, our production floor operates 24/7, reducing lead times to 15-25 days while maintaining stringent dimensional fidelity.
Located in the heart of South China's plastics industrial cluster (Leliu Town, Shunde District, Foshan), Langli maintains strategic raw material reserves and integrated carton-packaging lines. We provide multi-category container consolidation, allowing global buyers to bundle rigid conduit pipes, elbow fittings, circular junction boxes, and self-adhesive cable trunking in a single shipment with zero wasted CBM space.
Architecting environmentally compliant, flame-retardant, and high-impact polymer fittings for modern construction demands.
The global electrical fitting sector is undergoing a profound material evolution. Driven by strict environmental policies, upgraded municipal fire safety codes, and extreme climatic variances, the future of PVC-U technical manufacturing hinges on three core material engineering breakthroughs:
Traditional PVC stabilization relied heavily on lead-based complex compounds to prevent thermal degradation during extrusion and injection moulding. Langli has completed the systemic migration to 100% Lead-Free Calcium-Zinc (Ca-Zn) chemical stabilization. This transition ensures total compliance with international environmental directives such as EU RoHS 2.0 (2011/65/EU) and REACH (EC 1907/2006), eliminating heavy metal toxicity risks in indoor building environments without compromising mechanical impact resistance or Vicat softening temperatures.
Fire safety performance is paramount in public infrastructure projects such as airports, hospitals, subways, and high-density commercial centers. Our technical engineering roadmap emphasizes self-extinguishing polymer matrix formulations that achieve UL 94 V-0 flame rating within 10 seconds of source ignition removal. Furthermore, our continuous R&D into halogen-free polyolefin and modified polymer conduits provides specifiers with ultra-low smoke opacity options to minimize corrosive gas release during emergency fires.
Structural cracking under cold-climate jobsite handling remains a major failure point for standard plastic fittings. By introducing core-shell structure acrylic impact modifiers (AIM) and chlorinated polyethylene (CPE) elastomer networks into the resin matrix, our next-generation PVC-U fittings maintain cold-impact resistance down to -15°C while preserving tensile rigidity at ambient temperatures exceeding +60°C.
Purpose-engineered cable protection networks designed for demanding industrial, commercial, and residential environments.
Flush-mounted wall installations demand precise, high-wall-thickness junction boxes and smooth internal conduit bores. Langli’s 16mm–50mm conduit fitting series facilitates rapid wire pulling, low friction resistance, and long-term structural concrete embedding integrity.
Exposed cabling in manufacturing plants requires robust chemical resistance and rigid impact protection. Our industrial trunking bodies (up to 200×100mm) paired with clip-on external/internal flat angles isolate power cables from oil, solvents, and ambient industrial vibrations.
For municipal telecom expansions, surface-mounted self-adhesive mini-trunking offers fast retrofit capabilities. Fitted with high-tack pressure-sensitive acrylic tape, our wiring ducts ensure permanent wall bonding without drilling into decorative structural surfaces.
Matching regional building codes, localized dimensional standards, and branded private-label requirements for global wholesalers and distributors.
Procurement managers navigating international supply chains encounter vastly divergent regional standards. A universal approach to fitting manufacturing results in jobsite socket mismatches, loose couplings, and installation delays. Langli addresses global enterprise procurement demands through comprehensive customization matrixes:
Rigorous multi-stage quality control verifying structural integrity, chemical purity, and mechanical durability prior to export clearance.
Our complete product range carries verified CE declarations of conformity and independent RoHS 2.0 laboratory test reports, verifying non-toxicity and safety for immediate customs entry in regulated markets.
Every raw resin batch and injection production lot undergoes in-house testing: socket insertion force calibration, low-temperature drop-weight impact resistance (-5°C), Vicat thermal deflection testing, and glow-wire ignition testing.
We provide full landed-cost engineering assistance, supplying detailed itemized dimensional drawings, CBM volume optimization charts, HS code classifications, and private-label barcode master carton art designs.
Comprehensive standard technical parameters for engineering specifiers, tender writers, and enterprise buyers.
| Product Category | Standard Sizes Available | Material Formulation | Color / Finish Options | Compliance & Certification |
|---|---|---|---|---|
| Rigid PVC Conduit Pipe | 16mm, 20mm, 25mm, 32mm, 40mm, 50mm (Heavy/Light Gauge) | Unplasticized PVC-U (Lead-Free, Ca-Zn Stabilized) | White (RAL 9003), Grey, Black, Electric Orange | BS EN 61386-21, CE, RoHS |
| Conduit Pipe Fittings (Elbows, Couplers, Tees) | Matching 16mm to 50mm metric conduit sockets | High-Impact PVC-U Compound (V-0 Self-Extinguishing) | White, Black, Grey | BS 4607, CE Approved |
| Cable Trunking Bodies | 10x10mm to 200x100mm Mini & Large Cable Wiring Ducts | Rigid Flame-Retardant PVC-U (Optional Self-Adhesive Tape) | White, Ivory, Wood Grain Pattern | RoHS, REACH Compliant |
| Trunking Accessories (Flat Tees, Angles) | Matched to all standard trunking profile dimensions | Precision Injection Moulded PVC-U | White, Ivory | CE, ISO 9001:2015 |
| Circular Junction Boxes (1 to 4-Way) | 20mm & 25mm conduit knock-outs, Shallow / Deep base | PVC-U with Brass Threaded Inserts | White, Black | BS 4607 Standard |
| Electrical Switch & Surface Boxes | 1-Gang, 2-Gang, 3-Gang, 4-Gang (86x86 pattern & BS standard) | Impact Resistant Rigid Polymer Body | White, Ivory | CE Conformity |
Expert insights regarding technical specifications, minimum order quantities, compliance documentation, and OEM manufacturing capabilities.
We tool and mould electrical fittings to meet British Standards (BS 4607 / BS EN 61386 for 20mm, 25mm, 32mm, 40mm, and 50mm series), European DIN metric series (16-50mm), and Imperial/American ASTM conduit profiles (½" to 2"). Our surface wiring trunking spans from 10×10mm mini-trunking profiles up to 200×100mm heavy-duty industrial ducts. Official CE conformity certificates and RoHS 2.0 test reports are maintained on file for all standard product lines.
For catalog standard items, our practical minimum order quantity is one mixed 20-foot container (20ft FCL), which permits buyers to consolidate high-volume cable trunking alongside diverse fitting SKUs. Single-item trial orders for specific high-volume fittings start at 20 standard export cartons. Factory production lead times are typically 15 to 25 days following deposit confirmation, and 25 to 35 days for customized color matching, custom inkjet printing, or private-label master carton artwork production.
Yes. Supported by 900 sets of in-house injection moulds and automated resin compounding equipment, we offer complete OEM/ODM solutions. We regularly manufacture fittings in Signal White, Jet Black, Basalt Grey, Ivory, and custom RAL/Pantone colors. Branding options include laser or high-resolution inkjet marking directly on the fitting body, along with custom-printed full-color corrugated shipping cartons complete with your brand logo, regional barcodes, and custom item part numbers.
Quality assurance starts with virgin PVC compound preparation. Every batch is evaluated for density, Vicat softening temperature, and wall thickness dimensional tolerances using optical micrometer gauges. Injection-moulded fittings undergo regular socket gauge verification against matching conduit pipes to guarantee perfect push-fit and solvent-weld alignment. Flame retardancy is validated using glow-wire testing and vertical flammability chambers, ensuring material self-extinguishing performance (UL 94 V-0 grade compound available upon specification).
Absolutley. Our specialized export engineering team provides comprehensive commercial support, including itemized quotations, full volume (CBM) calculation tables, and 3D digital container loading software plans. This allows procurement officers to maximize container space utilization, lower per-unit freight tariffs, and establish accurate landed-cost calculations prior to issuing formal purchase orders.
High-grade PVC circular boxes, wireway ducts, and specialized cable trunking designed for seamless jobsite installation.
Request our 2025 product catalog, request sample kits for jobsite testing, or contact our export engineering team for immediate RFQ tenders and container load planning.
