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TUBOMART ENTERPRISE CO., LTD.
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For 23 years, we have provided plumbing parts from durable brass and plastic pipes and fittings to over 78 countries. We deliver at mass volumes thanks to the efficiency of over 200 production equipment and numerous testing devices that guarantee quality in every step.Any business can benefit from our expertise and attention to detail, from design to pipe production. Whether to modify products or create new parts, our one-site production can assist in providing OEM/ODM pipes made specifically to ...
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China TUBOMART ENTERPRISE CO., LTD. INNOVATION
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China TUBOMART ENTERPRISE CO., LTD. EXPERIENCE
TUBOMART Is Engaed in Pipe Fitting Production And Processing More Than 20 Years

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A Comprehensive Guide to Installing TUBOMART PEX AL PEX Gas Pipe
A Comprehensive Guide to Installing TUBOMART PEX AL PEX Gas Pipe   Introduction: TUBOMART PEX-AL-PEX gas pipe is a reliable and durable solution for gas distribution systems. Its composite construction combines the strength of aluminum with the corrosion resistance of PEX, ensuring a safe and efficient gas supply. In this blog, we will provide a step-by-step guide on how to install TUBOMART PEX AL PEX gas pipe, enabling you to set up a robust and reliable gas distribution system.   Step 1: Gather the Required Tools and Materials Before you begin the installation process, gather all the necessary tools and materials. This typically includes TUBOMART PEX AL PEX gas pipe, press fittings compatible with the pipe size, a pressing tool, a pipe cutter, a deburring tool, supports/brackets, and gas pipe tape or sealant. Ensure that you have the correct sizes and quantities based on your specific project requirements.   Step 2: Plan and Prepare Plan the layout of your gas system, considering the location of appliances, access points, and any regulations or building codes that need to be followed. Measure and mark the pipe lengths accordingly, allowing for proper connections and bends as needed. Obtain any required permits before starting the installation process.   Step 3: Cut and Deburr the TUBOMART PEX AL PEX Pipes Using a pipe cutter, carefully cut the TUBOMART PEX AL PEX pipes to the desired lengths, following the markings made during the planning phase. After cutting, use a deburring tool to remove any rough edges or burrs from the pipe ends. This step ensures clean and smooth surfaces for proper fittings and connections.   Step 4: Attach the Press Fittings Slide the compatible press fittings onto the ends of the TUBOMART PEX AL PEX pipes. Ensure that the fittings match the pipe size and type. TUBOMART offers a range of press fittings specifically designed for their PEX AL PEX gas pipe. Make sure the fittings are fully inserted onto the pipes for a secure seal.   Step 5: Press the Fittings Utilize a pressing tool specifically designed for TUBOMART PEX AL PEX gas pipe to apply pressure to the press fittings. Follow the manufacturer's instructions for the pressing tool you are using. The pressing tool will create a strong and leak-proof connection between the fittings and the pipes. Repeat this step for all fittings and connections in your gas system.   Step 6: Support and Secure the TUBOMART PEX AL PEX Pipes Install supports or brackets at appropriate intervals to provide stability and prevent excessive movement of the TUBOMART PEX AL PEX pipes. This step is crucial for maintaining the integrity of the gas system. Ensure that the supports are securely fastened and aligned according to the manufacturer's recommendations.   Step 7: Test the Gas System Once the installation is complete, conduct a thorough pressure test to ensure the TUBOMART PEX AL PEX gas pipe system is leak-free and functioning correctly. Follow the recommended procedures and guidelines for pressure testing, including pressurizing the system and checking for any pressure drops or leaks. If any issues are identified, address them promptly before finalizing the installation.   Step 8: Obtain Final Inspection and Approval Contact the relevant authorities to schedule a final inspection of the gas system. This step ensures compliance with local building codes and regulations. Once the system passes inspection, you can proceed with finalizing the installation and start using the TUBOMART PEX AL PEX gas pipe system.   Conclusion: Installing TUBOMART PEX AL PEX gas pipe is a reliable and efficient way to establish a safe gas distribution system. By following this comprehensive guide, you can confidently install TUBOMART PEX AL PEX gas pipe, ensuring a secure and durable gas supply. Remember to adhere to local regulations, obtain necessary permits, and consult with professionals if needed. With proper installation and maintenance, TUBOMART PEX AL PEX gas pipe will provide long-lasting performance and peace of mind.
TUBOMART Plumbing Systems: Why Use Them for Commercial Projects?
TUBOMART Plumbing Systems: Why Use Them for Commercial Projects?   Although our brass push-to-connect fittings are the reason most pros know us, you may also utilize them in commercial new construction environments.   This type of application is intended for the TUBOMART plumbing system, which has a push-to-connect mechanism that is both comparable to and different from that of the brass push system.   The Push-to-Connect Fittings The permanent nature and design of Push-to-Connect fittings distinguish them from Brass push fittings. When you've established a secure connection, they only function with PEX tubing and show a green visual indication. Furthermore, TUBOMART fittings from PEX cannot be withdrawn once the pipe is completely placed into the fitting; whereas, you may remove a brass push-to-connect fitting with disconnect clips or tongs.   TUBOMART Plumbing Systems for Commercial Projects The success of a task is determined by a number of criteria in the current construction environment. Here are some examples of how the TUBOMART system assists in addressing those factors to retain the quality that clients demand from their commercial plumbing installation while keeping jobs within budget and on schedule.   1.Money is saved. PEX is more flexible and can bend around corners than rigid piping, making it more cost-effective and adaptable. This lowers the required number of fittings. By reducing installation timeframes, you can save even more money when you combine PEX with push-to-connect fittings.   2.It is trustworthy. The green indication on TUBOMART fittings avoids installation errors and offers visual comfort, and PEX's elasticity makes it less prone to burst by allowing it to expand and contract in freezing temperatures. Unlike tool-based PEX fittings, TUBOMART push-to-connect technology assures long-term quality performance by not adding any external stress to the fitting connection or changing the shape or integrity of the pipe.   3.It's secure. TUBOMART reduces the possibility of fire from utilizing torches on the construction site and helps keep potentially hazardous chemicals out of the potable water supply by doing away with the need for soldering, glues, and solvents.   4.It is able to be specified. You can include this time-saving approach in your specification if you're an engineer and wish to standardize it on your work site. Additionally, a high-performing plumbing system from a company they may already know and trust can be advantageous to contractors.
PPR Pipe , PVC Pipe , and PEX Pipe: A Comprehensive Buying Guide
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It is not only related to the safety of drinking water but also directly impacts the long-term stability and maintenance costs of the water supply system. This article provides a comprehensive buying guide for procurement staff and general consumers on PPR, PVC, and PEX pipes, helping you understand the differences and make the most suitable choice based on various application scenarios. What Are PPR Pipe, PVC Pipe, and PEX Pipe 1. PPR Pipe (Polypropylene Random Copolymer Pipe) PPR pipe, or Polypropylene Random Copolymer pipe, is a mainstream water supply piping material in the current market. It features good heat and pressure resistance and is mainly used in hot and cold water distribution systems, especially for potable water. PPR pipes and fittings are connected by heat fusion, forming a completely uniform, seamless whole that offers high connection strength and zero leakage. 2. PVC Pipe (Polyvinyl Chloride Pipe) PVC pipe, or Polyvinyl Chloride pipe, is one of the largest-volume plastic products globally. It is divided into rigid PVC (UPVC/PVC-U) and flexible PVC. In the piping sector, rigid PVC pipes are widely used, primarily for drainage, sewage, electrical conduit protection, and agricultural irrigation systems. PVC pipes are typically connected using solvent cement (glue). 3. PEX Pipe (Cross-linked Polyethylene Pipe) PEX pipe, or Cross-linked Polyethylene pipe, is a high-performance plastic pipe material. It is cross-linked through chemical or physical methods, giving it excellent resistance to high temperatures, high pressure, and chemical corrosion. Due to its strong flexibility, ability to be coiled, and minimal number of fittings, PEX pipe is commonly used in radiant floor heating systems, domestic hot water recirculation, and centralized cooling systems. PPR Pipe, PVC Pipe, and PEX Pipe Comparison Table Feature PPR Pipe PVC Pipe PEX Pipe Primary Application Hot and cold water supply, potable water Drainage, sewage, electrical conduit, irrigation Floor heating, hot water recirculation, general supply Temperature Range Approx. $0^circtext{C}$ to $95^circtext{C}$ Typically does not exceed $60^circtext{C}$ Approx. $-40^circtext{C}$ to $95^circtext{C}$ Connection Method Heat Fusion (forms a seamless joint) Solvent Cement (glue) bonding Mechanical Connections (crimp, expansion, compression) Flexibility Rigid, requires elbow fittings Rigid, requires elbow fittings Excellent, can be coiled and bent Pressure Rating Good (depends on the PN pressure class) Poor (mainly for low-pressure/non-pressure drainage) Excellent UV Resistance Poor, must be shielded from prolonged exposure Poor, must be shielded from prolonged exposure Poor, must be shielded from prolonged exposure Environmental Safety Non-toxic, recyclable Rigid PVC is non-toxic, but connection process may produce odors Non-toxic, recyclable Pros and Cons of Each Pipe Type Pros and Cons of PPR Pipe Pros Cons Hygienic and Non-toxic: Can be used for potable water transport. Significant Thermal Expansion: Requires allowance for expansion or use of compensation fittings. Reliable Heat Fusion Joint: No leakage after connection, joint strength is higher than the pipe itself. Installation Difficulty: Heat fusion requires specialized equipment and skill, and is sensitive to ambient temperature. Good Insulation: Low thermal conductivity, suitable for hot water systems. Rigid: Difficult to bend, requiring many fittings for turns. Strong Corrosion Resistance: Stable against most chemicals. Poor UV Resistance: Short lifespan for outdoor use. Pros and Cons of PVC Pipe Pros Cons Lowest Cost: Significantly cheaper than PPR and PEX. Poor Heat Resistance: Only suitable for cold water or drainage; cannot withstand high temperatures. Lightweight, Easy to Install: Glue connection is simple and fast. Joint Reliability: Glue joints are sensitive to installation quality and pose a risk of solvent residue. Good Corrosion Resistance: Suitable for sewage and acidic/alkaline media. Pipe Rigidity: Moderate impact resistance, prone to cracking. Flame Retardancy: Possesses certain flame-retardant properties. Environmental Concerns: Production and disposal raise environmental issues. Pros and Cons of PEX Pipe Pros Cons Excellent Flexibility: Can be coiled, small bending radius, reduces the number of fittings during installation. High Fitting Cost: Specialized brass or plastic fittings are expensive. Excellent Temperature and Pressure Resistance: Suitable for high-temperature, high-pressure applications (e.g., floor heating). Sensitive to UV Light: Must be stored and installed away from light exposure. Resistant to Scaling: Smooth inner wall, low flow resistance. Cannot be Heat Fused: Must use mechanical connection methods, requiring high-quality sealing rings. No Electrochemical Corrosion: Does not react with metal fittings. Oxygen Permeability: Some PEX pipes (PEX-A/B/C) are oxygen permeable, potentially accelerating corrosion in heating system metal components (must choose oxygen-barrier PEX). In-Depth Comparison: Four Dimensions of Procurement Decisions 1. Application Scenarios Pipe Type Recommended Scenarios Not Recommended Scenarios PPR Pipe Hot and cold water supply systems in residential/commercial buildings. Drainage/sewage (insufficient diameter), exposed outdoor environments. PVC Pipe Indoor and outdoor drainage/sewage, electrical conduit, low-pressure irrigation. Any hot water system, potable water (restricted by some local codes). PEX Pipe Radiant floor heating, hot water recirculation, concealed water supply systems. Outdoor exposure (prone to aging), drainage systems requiring low installation cost. 2. Durability Both PPR and PEX pipes have very high durability over their normal service life (typically up to 50 years). PEX pipe performs slightly better than PPR in extreme high and low-temperature environments. While PVC pipe is corrosion-resistant, its durability under long-term pressure and temperature variation is inferior to the other two. Long-Term Stability: PEX > PPR > PVC Impact Resistance: PPR > PEX > PVC Aging Resistance (Outdoor): Requires protective sleeving. 3. Installation Process Pipe Type Key Installation Considerations PPR Pipe Heat fusion ensures joint quality; precise control of fusion time and temperature; pipe routing must account for thermal expansion. PVC Pipe Glue bonding requires clean and dry fittings; good ventilation; wait for curing time. PEX Pipe Mechanical connections (crimp or expansion) require specialized tools; ensure compatibility between fittings and pipe; flexibility reduces the need for elbows. 4. Cost (Taking Water Supply Systems as an Example) Cost Element PPR Pipe PVC Pipe PEX Pipe Pipe Material Price Medium Lowest Medium to High Fittings Price Lower (Heat Fusion Fittings) Lower (Glue Fittings) Higher (Brass or polymer mechanical fittings) Installation Labor Cost Higher (Requires professional fusion technique) Lower Lower (Fewer fittings, faster installation) Overall Cost Medium Lowest Medium-High After-Sales Maintenance PPR Pipe: Leak risk is extremely low once heat fusion is performed correctly. Maintenance mainly focuses on joint issues caused by failed fusion or pipe cracking due to improper handling of thermal expansion. PVC Pipe: Low maintenance cost, but glue joints can fail due to long-term stress or aging. PEX Pipe: Flexibility makes it less prone to bursting when frozen, resulting in low maintenance needs. However, mechanical fittings (especially if low-quality or installed incorrectly) are potential leak points. Factors to Consider When Choosing Among PPR Pipe, PVC Pipe, and PEX Pipe Application Temperature and Pressure: Exclude PVC pipe if conveying hot water (above $60^circtext{C}$) or requiring a high-pressure environment; PPR or PEX are preferred. Installation Location: If concealed in walls or floor heating layers (difficult to maintain), choose PEX pipe for its high flexibility, fewer joints, and good stability. If the pipeline is exposed and aesthetics matter, PPR pipe is more suitable. Budget Constraints: If the budget is limited and the use is strictly for drainage or low-pressure cold water, PVC pipe is the most cost-effective choice. Construction Techniques and Tools: PPR pipe requires a heat fusion machine; PEX pipe requires specialized expansion or crimping tools; PVC pipe only needs a cutter and glue. Assess the technical capabilities of the construction team. Regulatory Requirements: Check local building codes to confirm which pipe materials are permitted for potable water conveyance. How to Choose the Right Supplier Selecting the right supplier is a crucial step in ensuring procurement quality: Product Certification: The supplier must provide national and international quality certifications (e.g., ISO, CE, NSF), especially for potable water pipes, which require health and safety certification. Raw Material Source: Inquire about the brand and grade of the raw materials used for the pipes (e.g., PPR pipes should use high-quality random copolymer polypropylene granules). Complete System Supply: Prioritize suppliers who can provide a complete system (including pipes, fittings, and connection tools) to ensure compatibility and consistent quality across all components. Warranty Commitment: Demand a clear long-term quality warranty (e.g., 50 years) from the supplier and understand the claims process. Technical Support: Evaluate whether the supplier provides on-site technical guidance, installation training, and after-sales maintenance support. Conclusion PPR, PVC, and PEX pipes each have their unique market positioning and advantages. PPR pipe remains the mainstream choice for domestic hot and cold water supply systems due to its mature heat fusion technology and reliability. PVC pipe is unbeatable for drainage and low-cost applications. PEX pipe is rapidly gaining popularity for floor heating and high-performance hot water systems thanks to its flexibility and superior resistance to temperature and pressure. The final procurement decision should be based on a balanced consideration of the application scenario, budget, and long-term maintenance needs. Choosing high-quality pipe materials and a reliable supplier is the cornerstone of a safe and durable water supply system.

2025

10/22

Top 10 PEX Gas Pipe Brands in China (2025 Ranking)
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Based on brand reputation, market share, quality standards, and engineering performance, here is the 2025 ranking of the Top 10 Gas Pipe Brands in China, offering reliable options for global buyers, project contractors, and distributors. I. Comprehensive Comparison Table Rank Brand Name Founded Company Main Products Key Advantages Typical Applications 1 LESSO 1986 China Liansu Group Holdings Ltd. PVC, PE Gas Pipe, Water Supply, Electrical Conduits Industry leader, wide product range, nationwide coverage Municipal gas networks, construction projects 2 Jinniu Pipe Industry 1999 Jinniu Pipe Industry Co., Ltd. PPR, PE Gas Pipe, PVC Drainage Rich patents, automated production Residential gas systems, housing projects 3 VASEN 1999 Zhejiang Weixing New Building Materials Co., Ltd. PPR, PE Gas Pipe, Aluminum-Plastic Composite Pipe Strong R&D, brand reputation Building gas systems, heating pipelines 4 HONGCAI (Zhongcai Pipeline) 1995 Zhongcai Group Holdings Co., Ltd. PVC-U, PE, PP-R Pipes Large capacity, stable supply Municipal gas & water supply systems 5 RIFENG 1996 Zhongshan Rifeng Enterprise Co., Ltd. PE Gas Pipe, PE-RT, PPR, Stainless Steel Pipes Export-oriented, international certifications Household gas systems, export projects 6 KANGTAI 1999 Sichuan Kantai Plastic Technology Group PVC-U, PE, PP-R, PE-RT Pipes Strong engineering background, national coverage City gas networks, construction projects 7 JOMOO 1990 JOMOO Group Co., Ltd. Gas Connection Pipes, Plumbing Systems, Sanitary Ware High brand awareness, safe and reliable Kitchen and household gas systems 8 Parker 1918 Parker Hannifin (Shanghai) Co., Ltd. Gas Hose, Metal Fittings, Pneumatic Systems Global quality leader, industrial-grade safety Industrial gas systems, premium buildings 9 Amico 1995 Zhejiang Amico Industrial Co., Ltd. Gas Pipes, Valves, Connectors Strong export background, high standards Export projects, OEM/engineering 10 FANSKI 1992 Nanjing Fanski Industrial Co., Ltd. PE Gas Pipe, PE-RT, PP-R Pipes High cost-performance, growing brand Small & medium municipal projects II. Detailed Brand Analysis 1. LESSO (China Liansu Group Holdings Ltd.) Company Profile:Founded in 1986, LESSO is China’s largest plastic piping manufacturer and one of the most influential global brands in polymer systems. The company’s business spans building materials, water & gas transmission, environmental protection, and home improvement. With more than 20 production bases, LESSO provides comprehensive gas pipe system solutions for municipal, residential, and industrial use. Main Products:PE Gas Pipes, PVC-U Drainage Pipes, PPR Hot & Cold Water Systems, Electrical Conduits, PE-RT Heating Pipes, and related fittings.Certified by ISO, CE, and CSA standards. Brand Advantages: Industry pioneer with the largest market share in China; Complete product range with global certification; Proven quality in large-scale municipal and real estate projects. Review:LESSO is considered the benchmark of China’s gas pipe industry — known for stability, reliability, and engineering-grade performance. 2. Jinniu Pipe Industry Company Profile:Founded in 1999 in Chengdu, Jinniu Pipe Industry Co., Ltd. is a major player in China’s plastic pipe sector, integrating R&D, manufacturing, and marketing. Its PE gas pipe systems are widely used in residential, urban, and commercial projects. Main Products:PPR Pipes, PE Gas Pipes, PVC Drainage Systems, PE-RT Floor Heating Pipes.Equipped with German automated extrusion lines and precision testing systems. Brand Advantages: Strong R&D capabilities with multiple national patents; Automated production ensures consistency and durability; Wide distribution and responsive after-sales service. Review:Jinniu pipes are favored for their high cost-efficiency and stable safety, making them a top choice for residential gas installation. 3. VASEN Company Profile:Established in 1999, VASEN (Weixing) is renowned for its innovation and strong technological foundation in the field of polymer piping systems. The company integrates advanced European standards and operates large-scale facilities for gas, heating, and plumbing systems. Main Products:PPR Pipes, PE Gas Pipes, Aluminum-Plastic Composite Pipes, PVC-U Pipes, and Heating Systems.Products are exported to over 50 countries including Europe and the Middle East. Brand Advantages: Advanced in-house R&D and testing centers; Full set of international quality certifications; Strong branding and customer trust. Review:VASEN gas pipes are durable, leak-proof, and pressure-resistant, ideal for both residential and commercial gas systems. 4. HONGCAI (Zhongcai Group Holdings Co., Ltd.) Company Profile:Founded in 1995, Zhongcai Group is one of China’s largest pipeline system manufacturers, specializing in municipal and building materials. The company operates modern production bases and provides integrated solutions for urban infrastructure. Main Products:PVC-U Pipes, PE Gas Pipes, PP-R Hot & Cold Water Pipes, and pipe fittings. Brand Advantages: Large-scale industrial production and supply capacity; Comprehensive pipeline system for gas, water, and drainage; High product reliability and project track record. Review:HONGCAI’s gas pipes are widely applied in municipal projects and public infrastructure, offering strong value for engineering contractors. 5. RIFENG Company Profile:Founded in 1996, RIFENG is a global manufacturer specializing in high-quality piping systems for plumbing, gas, and heating. The company has exported to over 70 countries and is known for adhering to international certification standards. Main Products:PE Gas Pipes, PE-RT Heating Systems, PPR Hot & Cold Water Pipes, Stainless Steel Gas Pipes.Certified by ISO, WRAS, NSF, and DVGW. Brand Advantages: Globalized brand with international certifications; Premium product quality and reliability; Strong export network and overseas service. Review:RIFENG is one of the few Chinese brands with true international competitiveness, ideal for exporters and high-end housing projects. 6. KANGTAI Plastic Group Company Profile:Established in 1999, KANGTAI is headquartered in Sichuan and has become a leading enterprise in plastic pipe system manufacturing. The company serves sectors such as municipal gas, water, construction, and agriculture. Main Products:PVC-U, PE Gas Pipes, PP-R Pipes, PE-RT Floor Heating Systems.Products meet national and ISO standards. Brand Advantages: Extensive nationwide supply network; Strong engineering experience and project references; Excellent resistance to impact and climate conditions. Review:KANGTAI is known for high reliability and affordability, favored by real estate developers and municipal contractors. 7. JOMOO Company Profile:Founded in 1990, JOMOO is one of China’s leading smart sanitary and plumbing brands. In recent years, it has expanded into gas connection and safety systems, integrating design aesthetics with industrial-grade safety standards. Main Products:Gas Connection Pipes, Corrugated Stainless Steel Hoses, Plumbing & Sanitary Systems, Valves, and Accessories. Brand Advantages: Strong nationwide reputation; High-quality materials ensuring long service life; Innovative design for modern homes. Review:JOMOO’s gas connection products are trusted for safety and design, making them ideal for residential and kitchen applications. 8. Parker Company Profile:Founded in 1918, Parker Hannifin is a world leader in motion and control technologies. Its China branch in Shanghai serves industrial clients with top-quality gas, hydraulic, and pneumatic systems. Main Products:Industrial Gas Hoses, Metal Fittings, Pneumatic Systems, and Safety Components. Brand Advantages: Global reputation for quality and innovation; Meets strict EU and US industrial standards; Outstanding durability and pressure resistance. Review:Parker represents industrial-grade performance, suitable for commercial buildings and high-demand gas systems. 9. Amico Company Profile:Founded in 1995, Zhejiang Amico Industrial Co., Ltd. specializes in the manufacture of gas valves, pipes, and fittings. Its products are exported to Europe, the Middle East, and Southeast Asia. Main Products:PE Gas Pipes, Valves, Connectors, and PE-RT Heating Pipes.Certified under ISO, CE, and other international standards. Brand Advantages: Experienced in international trade and OEM; Strict manufacturing standards and quality control; Strong presence in overseas engineering markets. Review:Amico is a trusted brand for export and OEM cooperation, offering both quality and reliability. 10. FANSKI Company Profile:Established in 1992, Nanjing Fanski Industrial Co., Ltd. is a rising brand focusing on PE-based gas pipe systems. It is known for intelligent production and cost-effective solutions. Main Products:PE Gas Pipes, PE-RT Heating Pipes, PP-R Water Pipes, and Accessories. Brand Advantages: Competitive pricing with consistent quality; Easy installation and strong safety performance; Rapidly expanding domestic and export markets. Review:FANSKI is an emerging player with excellent cost-performance, gradually gaining market share in medium-scale gas projects. Conclusion: Why Choose Chinese PEX Gas Pipe Manufacturers? China’s gas pipe industry has achieved remarkable growth thanks to its advanced production technologies, international certifications, and competitive pricing. Leading brands such as LESSO, VASEN, and RIFENG offer full-system solutions — from raw materials to fittings — that meet global safety and performance standards. For overseas distributors and engineering contractors, sourcing from Chinese gas pipe manufacturers means high reliability, fast delivery, and excellent value. TUBOMART ENTERPRISE CO., LTD. For 23 years, we have provided plumbing parts from durable brass and plastic pipes and fittings to over 78 countries. We deliver at mass volumes thanks to the efficiency of over 200 production equipment and numerous testing devices that guarantee quality in every step. Any business can benefit from our expertise and attention to detail, from design to pipe production. Whether to modify products or create new parts, our one-site production can assist in providing OEM/ODM pipes made specifically to address your concerns. Our manufacturing philosophy focuses on producing impeccable plumbing accessories, investing heavily in the latest equipment and processes. Our quality control team conducts routine inspections to ensure our high standards are consistently met. Pex-Al-Pex Pipe Related Notes What is a Pex-Al-Pex Pipe? Pex-Al-Pex pipe is a composite pipe made by bonding two layers of cross-linked polyethylene (PEX) with an aluminum core. This structure perfectly combines the flexibility and durability of PEX with the stability and shrink resistance of aluminum, making the pipe both flexible and structurally strong. Structural Features: The inner and outer layers are made of PEX, which is resistant to high temperatures, corrosion, and chemicals. The middle layer is an aluminum core, which reduces dimensional changes caused by thermal expansion and contraction, ensuring stability under temperature fluctuations. The layers are bonded using specialized adhesion technology to prevent delamination over long-term use. Certifications and Standards: Certified according to U.S. and Canadian plumbing and mechanical standards (e.g., ASTM, CSA), suitable for residential and commercial plumbing systems. Applications: Water Supply Systems: Hot and cold water distribution for residential and commercial buildings. Heating Systems: Underfloor heating and radiator supply lines. Cooling Systems: Air conditioning and chilled water circulation. Outdoor Snow and Ice Melting Systems: Roof snow-melting pipes and road de-icing systems. Advantages: High Temperature and Pressure Resistance: Suitable for long-term use in hot water and pressurized environments. Flexibility: Easy to bend and install, reducing the need for fittings. Low Thermal Expansion: Aluminum core minimizes shrinkage, maintaining pipe shape. Good Compatibility: Can be directly connected to PEX systems and common fittings.

2025

10/22

Butt Welding vs. Overlap Welding: Joining Methods for PEX-Al-PEX Composite Pipes
.gtr-container-7d3e9f { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; font-size: 14px; line-height: 1.6; color: #333; max-width: 100%; padding: 16px; box-sizing: border-box; overflow-wrap: break-word; word-break: normal; } .gtr-container-7d3e9f p { margin-top: 0; margin-bottom: 1em; text-align: left !important; } .gtr-container-7d3e9f .gtr-section { margin-bottom: 24px; } .gtr-container-7d3e9f .gtr-heading-level-2 { font-size: 18px; font-weight: bold; margin-top: 24px; margin-bottom: 16px; color: #222; text-align: left; } .gtr-container-7d3e9f strong { font-weight: bold; } @media (min-width: 768px) { .gtr-container-7d3e9f { max-width: 800px; margin: 0 auto; padding: 24px; } .gtr-container-7d3e9f .gtr-heading-level-2 { margin-top: 32px; margin-bottom: 20px; } } Gas PEX-Al-PEX (Polyethylene Cross-linked - Aluminum - Polyethylene) pipes, known for their flexibility, durability, and oxygen barrier properties, are widely used in modern gas installations. A critical aspect of their reliability lies in the permanent joining technique. While various methods exist, heat fusion is the gold standard for creating leak-proof, monolithic connections. The two primary heat fusion techniques are Butt Fusion and Socket Fusion, each with distinct advantages. Overlap Welding: The Standard for Simplicity Overlap Welding is the most common and straightforward method for joining PEX-Al-PEX pipes. This process involves using a pre-manufactured fitting, such as an elbow or coupler, whose internal diameter is slightly smaller than the pipe's outer diameter. The procedure requires a specialized overlap welding tool equipped with heating plates of specific diameters. The process begins by cleaning the pipe end and the fitting's interior. The fusion machine heats both components simultaneously. Once the polyethylene surfaces reach a precise melting temperature, the pipe is swiftly inserted into the fitting socket. A brief holding period is crucial, allowing the molten PEX layers from both parts to intermix and cool under pressure. The result is a homogeneous joint that is as strong as the pipe itself. The key advantage of socket fusion is its speed and simplicity, making it ideal for standard residential and commercial gas line installations where prefabricated fittings are readily available. Butt Welding: Strength for Direct Connections Butt Welding is employed when a direct, fitting-less connection between two pipe ends is required. This method is particularly useful for creating long, continuous runs or repairing a section of pipe. The process requires a butt fusion machine that aligns the two pipe ends perfectly in a clamp. The steps involve facing the pipe ends to ensure they are perfectly square and clean. A heating plate, with a non-stick surface, is then inserted between the clamped ends. The pipes are pushed against the plate until the PEX layers melt. The heater is quickly removed, and the two molten ends are pressed together with a controlled force. This pressure forces the polyethylene molecules to intertwine across the interface, forming a seamless, continuous joint upon cooling. The primary benefit of butt welding is the elimination of a fitting, which reduces potential leak points and minimizes flow resistance. However, it demands more skill, a more robust machine, and strict control over heating and pressing parameters to avoid defects like cold fusion. Conclusion The choice between butt and overlap welding for PEX-Al-PEX gas pipes depends on the application's specific requirements. Overlap welding, with its use of standard fittings, offers unmatched ease and efficiency for most branching installations. In contrast, butt welding provides superior hydraulic efficiency and is indispensable for long, straight pipelines. In both cases, operator training and strict adherence to the manufacturer's procedures—including correct temperature, pressure, and heating time—are non-negotiable for ensuring the long-term safety and integrity of the gas system.

2025

09/25