HEWAI: Your Trusted Partner for High-Quality PEX, PERT, and Multilayer Pipes for Every Piping Need

When it comes to choosing piping systems for residential, commercial, or industrial projects, durability, efficiency, and compliance with global standards are non-negotiable. HEWAI, one of the leading Chinese producers specialized in integrated plastic piping systems, stands out as a reliable manufacturer and exporter, offering a comprehensive range of products including PEX pipe, PERT pipe, PPR pipe, EVOH PEX/PERT oxygen barrier pipe, PEX-Al-PEX pipe, PE-AL-PE Gas pipe, and PERT-AL-PERT pipe. Our solutions cater to diverse applications such as floor heating, water supply, gas transportation, air-conditioning, solar systems, and heating & cooling systems—ensuring that every client’s unique needs are met with precision and quality.

Understanding Your Piping Needs: Applications That Matter

At HEWAI, we design our products around real-world client requirements. Whether you’re a contractor working on a new residential underfloor heating system, a builder installing a commercial water supply network, or an engineer planning a gas distribution project, our piping systems are engineered to deliver long-term performance.

1. Underfloor Heating Systems

Underfloor heating is a popular choice for modern homes and commercial spaces, offering even heat distribution and energy efficiency. Our PERT pipe and PEX pipe are ideal for this application—they resist high temperatures, maintain flexibility for easy installation, and ensure consistent heat transfer. The PERT-Al-PERT pipe takes it a step further, combining the flexibility of plastic with the structural stability of aluminum, preventing expansion and ensuring the system remains reliable for years. For projects requiring extra protection against oxygen permeation (which can cause corrosion in metal components), our EVOH PEX/PERT oxygen barrier pipe is the perfect solution.

2. Water Supply Systems

Clean, safe, and consistent water supply is essential. Our PPR pipe is designed for cold and hot water distribution, with excellent chemical resistance and a smooth inner surface that prevents scale buildup. The PEX-Al-PEX pipe is also suitable for water supply, as its aluminum layer blocks light (preventing algae growth) and enhances pressure resistance—making it a top choice for both residential and commercial buildings.

3. Gas Transportation

Gas piping demands utmost safety and leak-proof performance. HEWAI’s PE-AL-PE Gas pipe meets strict global standards (such as ISO) to ensure secure gas flow. The aluminum layer provides superior barrier properties, preventing gas permeation, while the plastic outer layer resists corrosion and environmental damage—ideal for underground or above-ground installations.

4. HVAC and Solar Systems

Heating, ventilation, air-conditioning (HVAC), and solar systems require piping that can withstand temperature fluctuations and high pressure. Our PEX pipe (including PEXb Oxygen barrier pipe) and PERT pipe are engineered to handle these conditions, with cross-linked polyethylene (PEX) offering exceptional durability and PERT providing excellent thermal stability. These pipes integrate seamlessly with solar panels and HVAC units, ensuring efficient energy transfer and reducing maintenance costs.

Industry Insights: Key Facts About PEX, PERT, and Multilayer Pipes

Choosing the right piping material can be overwhelming—here’s a breakdown of essential industry knowledge to help you make informed decisions:

What Is PEX Pipe?

PEX (cross-linked polyethylene) is a flexible plastic pipe created by chemically or physically bonding polyethylene molecules. This cross-linking process gives PEX superior strength, temperature resistance (up to 200°F/93°C), and resistance to corrosion and scale. There are three main types: PEX-a (most flexible), PEX-b (most common, using the silane method—like HEWAI’s PEXb Oxygen barrier pipe), and PEX-c (produced via electron beam cross-linking). PEX is widely used in underfloor heating, water supply, and HVAC systems.

What Is PERT Pipe?

PERT (polyethylene of raised temperature resistance) is a type of polyethylene pipe designed for high-temperature applications. Unlike standard polyethylene, PERT is modified to withstand temperatures up to 180°F/82°C, making it ideal for underfloor heating and hot water supply. It’s more rigid than PEX but still easy to install, and it offers excellent chemical resistance—perfect for residential and commercial projects where thermal stability is key (such as HEWAI’s Cost-Effective PE-Rt Heating Pipe).

What Are Multilayer Pipes?

Multilayer pipes (like PEX-Al-PEX pipe and PERT-AL-PERT pipe) combine two or more materials to leverage their strengths. Typically, they have an inner plastic layer (PEX or PERT) for media contact, an aluminum layer for structural support and barrier properties, and an outer plastic layer for corrosion resistance. Benefits include:

• Reduced expansion and contraction (critical for underfloor heating).
• Enhanced pressure resistance (suitable for high-demand water supply).
• Barrier against oxygen and light (prevents corrosion and algae growth).

HEWAI’s multilayer pipes comply with EN ISO 21003 and ISO standards, ensuring global quality compliance.

Why Choose Oxygen Barrier Pipes?

Oxygen barrier pipes (such as EVOH PEX/PERT oxygen barrier pipe) include a layer of EVOH (ethylene vinyl alcohol), which blocks oxygen from entering the pipe. Oxygen permeation can cause rust and corrosion in metal components (like boilers, pumps, or radiators) of heating or water systems, leading to premature failure. These pipes are a must for closed-loop systems (e.g., underfloor heating) to extend the lifespan of the entire system.

FAQ: Answers to Your Most Common Piping Questions

1. What’s the Difference Between PEX and PERT Pipes?

PEX is cross-linked polyethylene, offering higher temperature resistance (up to 200°F) and flexibility. PERT is a modified polyethylene with raised temperature resistance (up to 180°F) and more rigidity. PEX is better for systems with extreme temperature fluctuations, while PERT is ideal for standard underfloor heating and hot water supply—HEWAI offers both, including PEX pipe and PERT pipe, to suit different needs.

2. Can HEWAI’s PEX-Al-PEX Pipe Be Used for Underground Gas Lines?

Yes. Our PE-AL-PE Gas pipe (a type of multilayer pipe) is specifically designed for gas transportation, with an aluminum barrier that prevents gas permeation and an outer plastic layer that resists underground corrosion. It complies with ISO standards, ensuring safety and reliability for underground installations.

3. Are HEWAI’s Pipes Suitable for Potable Water Systems?

Absolutely. All our water-related pipes (such as PPR pipe, EVOH PE-Xa Pipe, and PEX-Al-PEX pipe) are made from food-grade materials and meet ISO standards for potable water. They have smooth inner surfaces that prevent bacteria growth and scale buildup, ensuring clean, safe water for drinking and daily use.

4. How Long Do HEWAI’s PEX and PERT Pipes Last?

With proper installation and maintenance, HEWAI’s PEX pipe and PERT pipe have a lifespan of 50+ years. The cross-linking in PEX and thermal modification in PERT enhance durability, while our multilayer pipes (like PERT-AL-PERT pipe) add structural stability—reducing the need for replacements.

5. Do I Need an Oxygen Barrier Pipe for My Underfloor Heating System?

Yes, for closed-loop underfloor heating systems. Oxygen can enter non-barrier pipes and cause corrosion in metal boilers, pumps, or valves. HEWAI’s PEXb Oxygen barrier pipe and EVOH PEX/PERT oxygen barrier pipe block oxygen, protecting your system and extending its lifespan.

6. What Standards Do HEWAI’s Pipes Comply With?

All HEWAI products meet global standards, including ISO (e.g., ISO 9001 for quality management), ASTM, and EN ISO 21003 (for multilayer pipes). For example, our 10-63mm PE-Al-Pex Pipe complies with ISO/ASTM standards, and our Eco-Warm PE-Rt Pipes are ISO 9001 approved—ensuring consistency and quality worldwide.

7. Can HEWAI’s PERT Pipe Be Used for Both Hot and Cold Water?

Yes. Our PERT pipe (such as the 10mm-63mm Pert-Al-Pert Pipe) is designed to handle both hot (up to 180°F) and cold water. Its thermal stability makes it suitable for hot water supply, while its chemical resistance works well for cold water applications—offering versatility for residential and commercial projects.

8. How Much Pipe Can HEWAI Produce Daily?

HEWAI’s factory covers 25,000 square meters and is equipped with 25 automatic high-speed production lines. Our daily output can reach 100,000 meters of pipe—ensuring we can meet large-scale orders for projects of any size.

9. What’s the Advantage of HEWAI’s Multilayer Pipes Over Single-Layer Pipes?

Our PEX-Al-PEX pipe and PERT-AL-PERT pipe combine plastic’s flexibility with aluminum’s strength. They have less expansion/contraction (reducing installation issues), better pressure resistance (handing high-demand systems), and barrier properties (blocking oxygen/light). This makes them more reliable than single-layer PEX or PERT for complex projects.

10. Does HEWAI Offer After-Sales Support?

Yes, we provide 24/7 support to all clients. Whether you need help with product selection, installation guidance, or troubleshooting, our team is available anytime to assist. We also offer factory-direct sales, ensuring competitive pricing and fast delivery for your projects.

Why Choose HEWAI?

At HEWAI, we don’t just sell pipes—we provide integrated piping solutions. Our strengths include:

• Quality Manufacturing: 25,000-square-meter factory with 60 CNC machine tools, 4 forging machines, and automatic high-speed lines for ultrasonic and butt welding (ensuring precision in every pipe).
• Comprehensive Product Range: From PEX pipe and PERT pipe to multilayer and oxygen barrier pipes, we have products for every application.
• Global Compliance: All products meet ISO, ASTM, and EN standards, making them suitable for export to any country.
• Client-Centric Service: 24/7 support, factory-direct sales, and customized solutions to meet your specific project needs.

Whether you’re upgrading a residential underfloor heating system, building a commercial water supply network, or planning a gas project, HEWAI has the right piping solution for you. Explore our products today and experience the quality and reliability that make us a leading name in the industry.