English 
French 
Arabic 
Spanish (Chile) 
Portuguese 
Spanish (Mexico) Wholesale LSZH Conduit Manufacturer and Supplier
Professional LSZH Conduit Pipe and Fitting Supplier & Manufacturer
Low smoke halogen free conduit refers to the conduits is made with materials that produce low or limited smoke and non-toxic halogens when exposed to fire or high temperatures. In other words, conduits for electrical installations need special characteristics to meet the safety requirements of low smoke, flame retardant and halogen free
Airport, hotel, hospital, school and more other big projects, are used to low smoke halogen free conduit and fittings. Because safety and environmental protection is one of the most important factors for them. Â
Our halogen free conduit and fittings comply with the below standards and certified:
ASTM E662: Density of smoke
IEC60754-2: Determination of acidity and conductivity
IEC61386-1: General requirements for conduit systems for cable management.
IEC61386-21: Rigid conduit Systems for Conduit systems for cable management.
ISO4589-1 & ISO4589-2: Oxygen Index
ISO4892-3 & ISO105-A02: light ageing Test-UV exposure
ISO19700: Toxicity Index
High & low temperature test: in -45°C to +150°CÂ
UL94: Vertical burning test, V-0
The Advantages of LSZH Conduit
1. Enhanced Fire Safety
- Low Smoke Emission: Generates >60% light transmittance during combustion (tested via IEC 61034), maintaining visibility in evacuation routes.
- Zero Halogen Toxicity: Releases no corrosive/toxic gases (e.g., HCl, HF) under fire, complying with IEC 60754-1/2 for human safety and equipment protection.
- Self-Extinguishing: Achieves UL 94 V-0 flame retardancy, extinguishing within 2 seconds after removing ignition sources.
2. Environmental & Health Compliance
- Non-Toxic Material: Free from lead, cadmium, and halogenated compounds, meeting RoHS and REACH regulations.
- Recyclability: Up to 85% recyclable via mechanical reprocessing, reducing landfill waste.
3. Industry Applications
- Transportation: Subway tunnels, aircraft cabins, and EV battery trays.
- Critical Infrastructure: Data centers, hospitals, and nuclear facilities.
- Energy: Solar farms and offshore wind turbines exposed to harsh conditions.
- LSZH – Low Smoke Zero Halogen
- Conduit pipes available from 16mm to 150mm
- Color: Grey, Black, white
- Lenght: 4m/6m
- Main Market: Australia, Chile, Peru, Hong Kong, China, Macau, China
- Applications: Hospitals, schools, hotels, tunnels, government projects, etc.
the Differences Between LSZH Conduit and PVC Conbduit
| Feature | LSZH Conduit (Low Smoke Zero Halogen) | PVC Conduit (Polyvinyl Chloride) |
|---|---|---|
| Material Composition | Made from halogen-free polymers (e.g., polyethylene). | Composed of polyvinyl chloride resin with additives (stabilizers, lubricants). |
| Flame Retardancy | Self-extinguishing and inherently flame-retardant due to halogen-free design. | Flame-retardant properties depend on additives (e.g., rigid PVC may achieve oxygen index >27). |
| Smoke & Toxicity | Produces low smoke and no toxic halogen gases during combustion, ideal for confined/public spaces. | Can release toxic fumes (HCl gas) and dense smoke when burned. |
| Applications | Used in high-safety environments: tunnels, subways, hospitals, data centers, and fire-risk areas. | Common in general construction, residential wiring, and non-critical industrial settings. |
| Flexibility | Typically rigid or semi-flexible; requires heat for bending (similar to rigid PVC). | Rigid PVC requires heating for bending; flexible variants (e.g., FPC) exist for easier installation. |
| Standards & Codes | Complies with IEC 60754-1/2 (toxicity/smoke testing) | Meets standards like UL 651 (rigid PVC) and CSA, AS/NZS 2053. |
Product Collections
GET YOUR CATALOG TODAY
Want to learn more about the electrical conduit pipes offered by Ctube? Download their catalog and send us your questions and requests.
Product Authentication
Why Choose Ctube
Ctube is a professional electrical conduit pipe and fittings supplier with over 10 years of experience, focusing on electrical PVC conduit pipes OEM/ODM service for leading brands worldwide. We aim to become the leading global supplier in our industry and specialize in developing and manufacturing high-quality, user-friendly PVC conduit pipes and fittings.
10+ Years of Experience
10+ years of electrical conduit industry experience offer a full range of conduit pipe product choices
Full Certifications
ISO 9001 Quality System Certification. ISO 14001 Environmental Management System Certification SGS, ROSH, CNAS, CE, IEC Certification
All Customer Served
Have experience working with both end-user and trading companies, Understand the difference between clients and users.
Customization Solution
We can customize various details of your product, including materials, colors, size, printing, and the rest.
Ctube Cooperation Process
1
Please provide details of your requirements and submit your inquiry. Our customer support team will respond via email within a few hours and assign a sales manager to work with you.
2
Within two business days or less, we will provide you with product quotes. Once you’ve received the quotes, we’ll send you product samples for your review. Once you’ve confirmed that the samples meet your expectations, we can proceed with your order.
3
Before placing a bulk order, please verify all product details with your sales manager. They will work closely with the factories, oversee production, and ensure product quality meets your expectations.
4
Once the products have been manufactured and meet your quality standards, we will arrange transportation according to your specific requirements and ensure safe delivery of your goods.
Frequently Asked Questions
Ctube is a leading Chinese manufacturer specializing in PVC conduits and fittings, offering innovative cable management and protection solutions. With more than a decade of industry expertise, the company is committed to quality, sustainability, and safety, holding ISO 9001 (Quality), ISO 14001 (Environment), and ISO 45001 (Safety) certifications. Additionally, their products meet global standards, including UL 651, CSA, CE, IEC, AS/NZS 2053, and ROHS compliance. Ctube’s high-quality products are trusted worldwide and exported to key markets such as North America, Europe, Australia, and Asia.
Products Offered:
UL-listed PVC conduits, CSA-certified conduits, AS/NZS 2053-compliant conduits and fittings, LSZH (Low Smoke Zero Halogen) conduits, and specialized solar conduits.
Industries Served:
- ​Construction: Solutions for airports, bridges, hospitals, schools, and other critical infrastructure.
- ​Renewable Energy: Conduits designed for solar and wind power plants.
- ​Government & Public Infrastructure: Reliable products for government projects and public utilities.
- ​Custom Solutions: Tailored options to meet unique regional or safety-specific requirements.
Our products are crafted using 100% virgin (non-recycled) materials, ensuring durability and reliability. They meet stringent global standards, including UL, CSA, CE, IEC, and ROHS compliance.
Warranty:
While specific warranty terms are not explicitly stated, quality is guaranteed through ISO-certified manufacturing processes and rigorous third-party testing by reputable organizations like SGS and CNAS. For detailed warranty information, please contact Ctube directly.
Ctube provides comprehensive professional assistance to ensure customer satisfaction. Here’s what you can expect:
- ​Free Technical Support: Expert guidance for installation and product usage.
- ​Customization Options: Post-purchase adjustments, including material, size, and color modifications, tailored to your needs.
- ​Efficient Logistics: Seamless global shipping coordination through Shenzhen and Guangzhou ports for timely delivery.
Our after-sales services are designed to meet your specific requirements and ensure a smooth experience from purchase to implementation.
To fulfill your project’s specific PVC conduit needs, simply submit your requirements through Ctube’s contact form or email. Our product development team will:
- Create tailored solutions based on your specifications, including materials, colors, sizes, and custom printing.
- Offer ​free samples for your approval before proceeding.
- Ensure timely delivery of bulk orders within ​15-30 days.
We’re committed to meeting your unique design requirements with precision and efficiency.
Certifications:
- ​System Certifications: ISO 9001 (Quality), ISO 14001 (Environment), ISO 45001 (Safety).
- ​Product Certifications: UL 651 (USA/Canada), CSA, CE (Europe), AS/NZS 2053 (Australia/New Zealand), ROHS, IEC, SGS, and CNAS.
- ​Material Compliance: LSZH (Low Smoke Zero Halogen) conduits meet stringent fire safety and environmental regulations.
Our certifications ensure that our products adhere to the highest global standards for quality, safety, and sustainability.
 Sustainability Initiatives:
Ctube is committed to minimizing its environmental footprint through:
- ​Eco-Friendly Materials: Use of LSZH (Low Smoke Zero Halogen) conduits, which are safer for the environment and human health.
- ​Energy-Efficient Manufacturing: Implementation of ISO 14001-certified processes to reduce energy consumption and waste.
- ​Recycling Programs: Encouraging the reuse and recycling of materials wherever possible.
- ​Compliance with Regulations: Adherence to global environmental standards such as ROHS and CE to ensure products are free from harmful substances.
Ctube actively works to balance innovation with environmental stewardship, delivering sustainable solutions for a greener future.
Yes, we have own factory and with over 10 years of experience as a manufacturer. You are welcome to visit our company and please make an appointment with us in advance.
Related Blog
Introduction PVC conduit is a popular choice for underground electrical…
What is LSZH Conduit? Low Smoke Zero Halogen (LSZH,…
As industries and households alike prioritize fire safety and environmental…
Endless Options For Your Specific Needs
Ctube focuses on the plastic electrical conduit field, around the customer’s demand for products, technology and services.
About MOQ:
For conduit pipes, 3000-10000 Meters according to different sizes. For conduit fittings, 5000- 10,000pcs.
About Delivery Time:
Around 15-30 days. It depend on your order quantity.
About Free Sample
Support free sample