Engineered to exceed international performance and reliability criteria
Ehao Plastic Group is a premier high-tech private enterprise integrated with the R&D and production of advanced building materials, industrial pipe fittings, and high-precision injection molds. As an established pioneer of PVC/UPVC ball valves in China's domestic market, our operations are sustained by deep technological partnerships with prestigious institutions including the Chinese Academy of Sciences and Zhejiang University. By implementing automated precision production lines and advanced computer injection systems imported directly from Germany, we execute a comprehensive 26-step scientific testing matrix on all fabrications.
Optimized piping configurations for civil, agricultural, and industrial infrastructure systems.
We source premium grade Polypropylene Random Copolymer (PPR Type 3), characterized by high molecular weight and superior crystalline configuration. This provides optimal resistance to high heat, internal pressure spikes, and environmental stress cracking, extending the service life of piping networks past 50 years.
Our facility incorporates German-engineered production lines and automated plastic injection mold systems. Computerized processing monitors temperature, injection pressure, and cooling cycles in real time to avoid micro-structural defects and maintain structural consistency.
All finished products are subjected to our internal 26-step testing cycle, including hydrostatic pressure testing, impact resilience evaluation, thermal cycling testing, and geometric validation, ensuring 100% code compliance before shipment.
From selecting and configuring the right system design for your application to helping you finance the system procurement, Ehao is structured to enhance your engineering productivity. Beyond standard sizes, we manufacture custom plastic molds, process supplied raw materials, and manufacture custom parts from customer technical drawings or samples.
Our core organizational philosophy remains: "Honesty, dedication, innovation, and mutual value return." We emphasize high product performance, accessible pricing, and responsive support.
Detailed answers to common engineering, specifications, and procurement questions.
PPR (Polypropylene Random Copolymer) is optimal for high-temperature and hot/cold water transport networks (up to 95°C) due to its high heat distortion threshold. UPVC (Unplasticized Polyvinyl Chloride) is rigid and corrosion-resistant, making it ideal for cold water transport, irrigation, drainage, and chemical handling.
We source premium raw materials and use precise extrusion and injection systems. Standard testing measures continuous internal hydrostatic pressure capacity across thermal stages, longitudinal shrinkage rates, and impact resistance.
We provide full-service OEM and ODM services. Our mold design division creates custom injection molds based on technical CAD models or physical samples, providing custom solutions for specific industrial projects.
The process spans raw material checking, melt flow indexing, dimensions validation during extrusion, pressure capacity verification, seal performance testing on valves, and shipping check gates, assuring a 100% ex-factory pass rate.
When installed correctly and operated within its pressure-temperature curves (e.g. PN20 at hot water service temperatures up to 70°C), our PPR installations are designed to exceed a service life of 50 years.
Premium solutions for water distribution and chemical processing plants
EHAO
