Engineered for maximum reliability and high-durability flow control systems. Direct from our automated facility.
Ehao Plastic Group is a premier, high-tech private enterprise specializing in the integration of R&D and advanced production of building materials, performance-grade piping fittings, and high-precision injection molds. As an industry leader in PVC/UPVC ball valves within the Chinese domestic market and global sectors, we have set a standard for top-tier fluid control systems.
Our competitive technical edge is fortified through collaborative R&D programs supported by the Chinese Academy of Sciences and Zhejiang University. By bridging advanced polymer physics with manufacturing practicality, we keep pushing the limits of thermoplastic performance.
To guarantee unmatched component consistency, Ehao has integrated fully automated production lines and computer-controlled injection molding machinery imported from Germany. Our operational protocol subjecting products to 26 structural testing steps, ensures a 100% ex-factory pass rate. All technical indexes conform strictly to international standards, including DIN8077 and DIN8078, delivering world-class reliability.
Backed by the Chinese Academy of Sciences and Zhejiang University.
Engineered with automated, high-precision German injection molding lines.
Strict quality-assurance protocols from raw material to final hydrostatic testing.
100% compliance with DIN8077 and DIN8078 international metrics.
Global Countries & Regions
Scientific Testing Steps
Ex-Factory Quality Pass Rate
8077/8078 Certifications
Why Tier-1 global industrial procurers choose Ehao for high-volume thermoplastic components.
Situated in China's premier industrial plastic and valve cluster, Ehao achieves cost efficiencies through bulk sourcing of high-grade raw resins (UPVC, PP, PPR, ABS, PC). This reduces supply chain volatility and ensures consistent batch quality.
Our tooling workshop designs and machines custom injection molds based on client CAD data, samples, or drawings. We handle internal mold flow analysis (MFA) to optimize gate placement, shrinkage parameters, and cooling efficiency.
From initial design to extrusion and injection, Ehao provides comprehensive secondary operations, including automated pad printing, ultrasonic welding, component assembly, and localized custom packaging.
Ehao thermoplastic solutions are optimized for varied target sectors requiring precision fluid control.
High-durability PPR and PVC bibcocks engineered to blend seamlessly with residential water networks while maintaining strict hygienic safety standards.
UV-resistant, impact-resistant octagonal compact ball valves configured for agricultural, landscaping, and macro-irrigation distribution grids.
Non-toxic, chemical-resistant UPVC piping systems and valves designed to eliminate toxic leachables and sustain biological balance in aquaculture.
Double union valves and structural couplings engineered to resist hydrostatic bursts and dynamic loads in commercial building water infrastructure.
Providing seamless coordination from custom configuration to long-term post-market technical support.
Ehao Plastic Group operates on a comprehensive service philosophy: "honest, dedicated, innovation, and return." We balance high quality for survival with scientific innovation for development. Through our established supply chains, we support international clients with:
Modern fluid routing infrastructures demand longer operating lifetimes under harsher conditions. In response, Ehao's ongoing collaboration with institutions like the Chinese Academy of Sciences has focused on UPVC and PPR compound modifications. Standard PVC is susceptible to UV degradation and localized stress cracking. Ehao's specialized formula introduces organic UV stabilizers and titanium dioxide (TiO2) white pigment agents. This minimizes chain-scission under direct sunlight, ensuring the mechanical integrity of components like our PVC Porcelain White Round Compact Ball Valves remains intact, even in outdoor applications.
The core of repeatable, high-volume injection molding is control over processing variables: melt temperature, injection speed, holding pressure, and cooling cycles. Ehao utilizes German computer-controlled automatic injection machines to regulate process parameters within tight tolerances. Minimizing dimensional variation prevents structural weakness at joint interfaces. By sticking strictly to the DIN 8077/8078 standards, our PPR and UPVC fittings display high burst pressure thresholds and stable structural profiles across manufacturing cycles.
To reduce pressure drop and cavitation risk, Ehao's engineering team optimizes the internal fluid geometry of all ball valves. This design maximizes flow velocity while minimizing structural turbulence. Our double union valves feature highly polished ball spheres and robust PTFE seats, reducing friction torque during operation and increasing seals' functional lifespan. In agricultural irrigation or chemical lines, this minimizes scaling build-up and ensures reliable sealing, even when handling suspended particles.
The manufacturing sector is seeing growing demand for ESG-aligned sourcing practices. Procurement teams are looking for partners that actively reduce greenhouse emissions and prioritize material recycling. Ehao utilizes clean production technologies, including heat recovery systems on injection barrels, closed-loop cooling water circuits, and direct scrap regrind recovery protocols for non-critical applications. This ensures that while we deliver high-performance parts, the environmental impact is kept as low as possible.
Direct answers to technical queries from project engineers and procurement specialists.
We provide full-scope OEM/ODM tool design. Clients can supply 3D CAD models (STEP, IGES, Parasolid), engineering drawings, or physical samples. We perform internal mold flow analysis to resolve gate issues, venting, and knit lines, then manufacture the molds in our tool shop. This workflow enables us to manufacture custom plastic components to precise specifications.
Our quality process covers all stages of production. Testing starts with raw resin verification (molecular weight distribution and moisture analysis) and continues through in-process dimensional tolerance tracking. Finished valves undergo hydrostatic burst pressure tests, cyclic fatigue evaluations, and vacuum seal testing. This keeps our defect rates low and ensures consistent sealing integrity in demanding environments.
DIN 8077/8078 standards define dimensions and pressure-bearing requirements for polypropylene (PP/PPR) pipes and fittings. Standard compliance ensures Ehao fittings integrate seamlessly into international piping networks, sustaining required pressure rates across temperature shifts without failing prematurely.
For aquaculture and fish cultivation, we recommend lead-free UPVC (Unplasticized Polyvinyl Chloride) or food-grade PP. These materials do not leach heavy metals, chemical stabilizers, or plasticizers into the water, keeping the aquatic environment safe.
Premium solutions for industrial pressure, residential delivery, and utility pipeline applications.
EHAO
