Explore our highly-durable compact and industrial-grade valve systems, precision-machined to reach absolute sealing capability.
Ehao Plastic Group is a high-tech private enterprise integrating R&D and production of premium building materials, pipe fittings, and advanced injection moulds. As a dominant force in the domestic Chinese market, we have established ourselves as the premier supplier of PVC, UPVC, and PP ball valves. Our technical foundation is built on deep integration with premier research bodies: since our inception, our technological breakthroughs have been co-supported by the Chinese Academy of Sciences and Zhejiang University.
To transform theoretical chemistry and fluid design into world-class performance, we imported high-speed manufacturing systems and computerized automatic injection molding machinery directly from Germany. These investments allow us to mold complex polymer geometries with micro-millimeter precision, achieving wall thickness consistency and roundness that far surpass standard industrial guidelines.
"Every product leaving Ehao's facility undergoes a comprehensive 26-step scientific testing procedure under strict quality control conditions. This rigor guarantees a 100% ex-factory pass rate, matching and exceeding DIN8077 and DIN8078 international standards."
By leveraging our brand influence, product quality, and distinct market adaptation strategies, our distribution footprint has grown to encompass almost every province in China, alongside active networks spanning 28 countries and regions including Europe, the Americas, and Southeast Asia. Ehao is recognized worldwide for its strict adherence to industrial standards, customer service, and innovative engineering.
From municipal water works to highly specific chemical processing loops, Ehao valves perform reliably in challenging operational scenarios.
Polymer-based valves have evolved from simple utility accessories to complex chemical-resistant process controllers. Ehao’s product range is optimized across four primary domestic and commercial channels:
Ehao valves comply with major international testing standards. Review our core technical matrix below.
| Material Category | Reference Standards | Working Pressure (PN) | Thermal Deflection Temp | Primary Industrial Applications |
|---|---|---|---|---|
| UPVC (Unplasticized PVC) | ASTM D1784, DIN 8077/8078 | PN10 / PN16 (150 PSI / 232 PSI) | Up to 60°C (140°F) | Water Treatment, Cooling Loops, Irrigation |
| PP (Polypropylene) | ISO 15874, DIN 8077 | PN10 (150 PSI) | Up to 95°C (203°F) | Industrial Acid lines, Hot Water Distribution |
| ABS (Acrylonitrile Butadiene Styrene) | ISO 15493 | PN10 / PN16 | -40°C to +80°C | Chilled Water Systems, Slurry Transport |
Each Ehao ball valve undergoes a multi-phase validation testing sequence prior to packaging:
Ehao offers integrated global support tailored to localized compliance standards. Because fluid handling laws differ significantly across the USA, Europe, and Asia, we match product parameters directly to local regulations:
Our roots in high-precision mold design allow us to operate a world-class OEM division. If your project requires unique face-to-face dimensions, specific handle layouts, custom branding, or complex polymers, Ehao will design, test, and manufacture your tooling under one roof. Our R&D center provides rapid 3D prototyping, simulation analysis, and pilot mold runs to dramatically reduce time-to-market.
How Ehao is evolving with green chemistry, smart control networks, and advanced polymer engineering.
Developing bio-sourced plasticizers and stabilizers to eliminate heavy metal residues entirely. Re-engineering our PVC processing line to lower the carbon footprint of each manufactured valve by 15% through heat recovery integration.
Integrating wireless RFID tags and digital usage counters into double union valves. This allows industrial operators to track cycle times, calculate wear levels, and schedule preventive maintenance via mobile devices.
Clear, direct, and technical answers compiled by Ehao's engineering team to guide your selection process.
Single union valves have a union connection on only one side, whereas double union valves feature unions on both ends. Double union valves allow you to easily service or replace the valve carrier block without dismantling the entire pipe system, saving hours of downtime in industrial pipelines.
DIN8077 defines the dimensions and tolerances for PP pipes and fittings, while DIN8078 defines physical and chemical tests (e.g. hydrostatic pressure resistance, thermal stability). Compliant valves are proven to resist internal pressure stress over extended operation cycles.
Yes, UPVC has exceptional chemical resistance to most acids, alkalis, salts, and organic solvents. However, it should not be used with strong oxidizers or aromatic hydrocarbons like benzene. For highly corrosive systems at elevated temperatures, PP is often preferred.
When installed correctly and used within specified pressure and temperature ranges, Ehao valves are designed to last over 20 years in utility systems. Our quality control testing simulates long-term usage cycles to verify durability.
Explore our compact, octagonal, and specialized double-union valve designs optimized for global shipping.
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