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Help CenterDouble Eccentric Butterfly Valve DN50-1200 High Performance for Water Treatment Plants
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Shanghai Sote Valve Co., Ltd., a trusted industrial valve manufacturer based in Shanghai, China, presents its Double Eccentric Butterfly Valve series engineered specifically for demanding water treatment applications. This high-performance valve delivers exceptional sealing reliability and operational efficiency, ensuring optimal process control in critical systems. With its innovative design and robust construction, it addresses common challenges like leakage and corrosion in water purification facilities. Our valves provide long-term cost savings through reduced maintenance needs and extended service life.
Key technical specifications include:
Double offset design minimizes wear on seat and disc
Bidirectional sealing capability for versatile installation
Fire-safe design available upon request
Multiple actuation options: manual, pneumatic, electric
Zero leakage performance meets industry standards
Standard configuration parameters:
| Parameter | Value Range |
|---|---|
| Pressure Rating | PN10 to PN25 |
| Temperature Range | -20°C to +150°C |
| Disc Material | Stainless Steel 316/316L |
| Seat Material | EPDM, NBR, PTFE Optional |
The valve's double eccentric structure provides significant advantages over conventional designs. The first offset creates a cam action during operation that lifts the seat away from the seal immediately after opening, virtually eliminating friction. The second offset enables bubble-tight shut-off even after prolonged use. This design extends maintenance intervals by up to 300% compared to concentric valves, particularly in abrasive media applications common in water treatment plants. The corrosion-resistant materials ensure reliable performance in chemically treated water environments, while the compact design reduces installation space requirements by approximately 40%.
Shanghai Sote Valve has supplied over 50,000 industrial valves to water infrastructure projects across China and international markets. Our technical team provides comprehensive support including flow calculation services and custom engineering solutions. With rigorous quality control protocols implemented at our Shanghai manufacturing facility, we guarantee consistent performance across all valve sizes from DN50 to DN1200. Contact our engineering department today for detailed sizing recommendations and project-specific quotations.
Frequently Asked Questions:
Q: What makes double eccentric design superior for water treatment?
A: The dual-offset geometry reduces seat friction by 90% during operation, significantly extending seal life in applications with frequent cycling.Q: Are these valves suitable for potable water systems?
A: Yes, all wetted parts comply with drinking water standards when ordered with certified materials.Q: What maintenance is required?
A: Our valves feature maintenance-free design under normal conditions, with recommended 5-year inspection intervals.Q: Can I get valves with emergency shut-off function?
A: Fail-safe actuators are available as optional accessories for critical applications.Q: What is the lead time for DN800 valves?
A: Standard sizes ship in 4-6 weeks; expedited production may be available upon request.Q: Do you provide installation guidance?
A: Comprehensive installation manuals and mounting diagrams accompany every shipment.
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