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Help CenterWafer Type Double Eccentric Butterfly Valve Fire Safe Design for Power Generation
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Shanghai Sote Valve Co., Ltd., a trusted manufacturer based in Shanghai, China, proudly presents our Wafer Type Double Eccentric Butterfly Valve engineered specifically for critical power generation applications. This fire-safe certified valve delivers exceptional shut-off performance and operational reliability in high-temperature environments, ensuring uninterrupted energy production while meeting stringent safety regulations.
Designed with a double eccentric (double offset) mechanism, this valve minimizes wear during operation and provides bubble-tight sealing even under extreme conditions. Its compact wafer-style construction allows for easy installation between flanges, reducing piping complexity and maintenance costs.
Key Technical Specifications:
Fire-Safe Certification: Compliant with API 607 and API 6FA standards for hydrocarbon fire scenarios
Robust Construction: Available in carbon steel or stainless steel body with metal-seated design
Pressure Handling: ANSI Class 150 to 600 pressure ratings
Temperature Range: Operates reliably from -29°C to 425°C (-20°F to 800°F)
Bidirectional Sealing: Maintains integrity in both flow directions
Low Torque Operation: Reduces actuator requirements by 40% compared to conventional designs
Performance Advantages:
| Feature | Benefit |
|---|---|
| Double Offset Disc | Eliminates rubbing contact, extending service life |
| Fire-Safe Metal Seat | Prevents leakage during fire emergencies |
| Corrosion Protection | Optional epoxy coating for harsh environments |
| Zero Leakage | Meets ANSI/FCI 70-2 Class VI standards |
Our valves undergo rigorous quality control including hydrostatic testing, fire testing, and cryogenic validation when specified. The precision-machined disc and seat interface ensures consistent performance over thousands of cycles, making it ideal for turbine bypass systems, boiler feedwater control, and cooling water circuits in power plants.
Frequently Asked Questions:
Q: What makes this valve fire-safe?
A: The metal-to-metal primary seal and secondary graphite seal provide dual protection. During fire events, the graphite seal combusts but creates a char that maintains sealing integrity.Q: Can it handle abrasive media in power plants?
A: Yes, our hardened stellite-seated versions are available for fly ash slurry and FGD systems.Q: What actuation options are available?
A: Manual lever, gearbox, pneumatic actuator (single/double acting), or electric actuator (on/off or modulating).Q: Is flange drilling compatible with international standards?
A: We offer ASME, DIN, JIS, and BS flange patterns as standard.Q: What is the delivery lead time for DN300 valves?
A: Standard models ship in 4-6 weeks; expedited options available.Q: Do you provide installation support?
A: Detailed installation manuals and 24/7 technical support are included.
With over 15 years of specialized valve manufacturing experience, Shanghai Sote Valve has supplied over 20,000 valves to power facilities across Asia. Our dedicated R&D team continuously improves designs based on field feedback, ensuring you receive valves engineered for real-world challenges. Request a customized quotation today and experience how our fire-safe butterfly valves enhance plant safety while reducing total cost of ownership through extended maintenance intervals and energy-efficient operation.
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