Explore our high-precision industrial valving and connection mechanisms, designed for strict mechanical reliability and zero-leak operations.
Founded as a high-tech private enterprise, Ehao Plastic Group represents the standard of engineering excellence in China’s building materials, pipe fittings, and injection mould fabrication sectors. Our operational methodology is characterized by a strong commitment to fluid dynamics R&D. We are recognized as an industry leader in PVC/UPVC ball valves within the Chinese domestic and international markets.
Ehao's scientific framework is supported by continuous technical alignment with the Chinese Academy of Sciences and Zhejiang University. This technical partnership translates high-level polymer science into robust industrial solutions. By understanding thermodynamic stresses and chemical degradation pathways, our engineering team optimizes molecular stabilization within all unplasticized polyvinyl chloride (UPVC) and specialized PVC formulations.
To maintain micro-tolerance standards, Ehao Plastic Group has imported state-of-the-art automated production lines and computer-controlled injection molding machinery directly from Germany. These advanced systems regulate temperature, clamping pressure, and injection speeds to prevent internal stresses and material degradation.
Every fitting and valve produced undergoes 26 distinct phases of scientific validation. These include hydrostatic pressure failure testing, impact resistance testing, visual spectrophotometry, and thread precision analysis, ensuring a 100% ex-factory pass rate. Our finished components meet the requirements of international piping standards, notably DIN8077 and DIN8078.
Modern fluid networks face complex chemical and mechanical challenges. Standard polyvinyl chloride compositions can fail under UV exposure, thermal fluctuations, and chemical attack. Ehao’s specialty UPVC and PP formulations mitigate these risks by using precise stabilizer packages and processing techniques.
Our piping components are engineered for the following macro-industrial challenges:
Ehao's double-union ball valves feature a dual-blocking mechanism that allows for online maintenance of downstream piping without draining the upstream network. This minimizes process downtime and improves system safety.
Ehao Plastic Group's distribution network covers 28 countries across Europe, the Americas, and Southeast Asia. We supply developers, EPC contractors, and distribution networks worldwide, complying with local building codes and standards.
We optimize lead times through localized warehouse integration, reliable logistics systems, and structured manufacturing scheduling. Our products are packaged to withstand maritime transit, preserving the integrity of critical thread details and high-polish ball surfaces.
Our manufacturing plant in China acts as a hub for both standardized high-volume production and custom, client-specific component development.
Engineered to perform in various demanding applications, from residential water systems to commercial process piping.
Safe, non-toxic water conveyance systems meeting European drinking water standards.
UV-resistant structural plastic components for large-scale agricultural operations.
Bio-safe materials that do not leach chemical compounds into aquaculture systems.
High-strength industrial fittings designed for complex commercial construction projects.
Our manufacturing processes comply with international standards to ensure interchangeability and consistent quality worldwide. The table below highlights the mechanical characteristics of Ehao’s industrial PVC systems compared to conventional plastic options.
| Physical Property | Ehao Industrial UPVC | Standard Polyvinyl (PVC) | Test Protocol Reference |
|---|---|---|---|
| Tensile Strength (MPa) | > 52 MPa | 40 - 45 MPa | ASTM D638 / ISO 527 |
| Hydrostatic Design Basis | PN10 / PN16 options | PN6 / PN10 options | DIN 8078 Sec 5.2 |
| Vicat Softening Temp (°C) | ≥ 78 °C | ≤ 72 °C | ISO 306 / ASTM D1525 |
| Friction Roughness Factor (r) | 0.009 (Hazen-Williams) | 0.012 (Hazen-Williams) | Fluid Dynamic Reference |
| Elastic Modulus (GPa) | 3.0 - 3.3 GPa | 2.4 - 2.8 GPa | ASTM D790 (Flexural Modulus) |
Our adherence to DIN8077 and DIN8078 ensures that all component dimensions, wall thicknesses, and raw material densities are controlled to meet long-term pressure testing requirements.
In addition to producing standard pipe fittings, Ehao operates a dedicated division for plastic mold engineering. We design, prototype, and manufacture custom injection molds based on client requirements.
Whether working from mechanical drawings, physical prototypes, or digital files, our design team uses 3D modeling and mold-flow simulation software to optimize gate locations, cooling line configurations, and cycle times. This custom capability serves clients requiring proprietary fitting configurations, specialized thread designs, or unique material blends (including POM, PPR, and PC).
Ehao supports complex supply chains with a dedicated compliance framework. We collaborate with national testing bodies to ensure our products meet local plumbing codes and material certifications, such as NSF/ANSI 61 for potable water systems, CE markings for European installations, and specific WRAS requirements for the United Kingdom.
We provide comprehensive technical documentation, including 3D CAD step files, submittal sheets, chemical resistance charts, and pressure derating schedules relative to operating temperatures. This documentation helps mechanical engineers and system designers specifying Ehao solutions for municipal, industrial, or residential projects.
As industrial processes modernize, Ehao Plastic Group continues to develop new materials and designs. Our research program focuses on three main areas:
By combining German machinery with academic research, Ehao delivers reliable fluid handling products today while preparing for the demands of future smart infrastructure.
Detailed engineering and chemical compliance answers for piping systems specifiers.
Browse additional technical solutions from Ehao, built to precision standards for reliable fluid system performance.
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