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API 609 Double Eccentric Butterfly Valve for Power Plant Steam and Water Lines
Product Spotlights
API 609 compliant double eccentric design reduces seat wear and torque, ensuring bubble-tight shut-off for power plant steam and water lines. Available in wide size range (DN50-DN1200), multiple materials, and operation modes. ISO9001 certified, with global shipping from Shanghai, Guangzhou, Hong Kong, and Beijing ports. Customizable for high-temperature and high-pressure applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Standard:
API 609
Application:
Other, Steam and Water Lines in Power Plants
Type:
Double Eccentric
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Standard
API 609
Application
Other, Steam and Water Lines in Power Plants
Type
Double Eccentric
Size Range
DN50-DN1200 (2“-48“)
Pressure Rating
Class 150-600
Body Material
Cast Steel / Stainless Steel (optional)
Seat Material
PTFE / RTFE / Metal (optional)
Operation
Manual / Gear / Pneumatic / Electric (optional)
Temperature Range
-29°C to +200°C (customizable)
Connection
Wafer / Lug / Flanged (optional)
Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, is a professional manufacturer specializing in high-performance industrial valves. Our API 609 Double Eccentric Butterfly Valve is engineered specifically for demanding power plant steam and water line applications. With an annual export value of US$1 million to US$1.5 million and ISO9001 certification, we ensure every valve delivers reliable performance, tight shut-off, and long service life. This valve is designed to handle high-pressure and high-temperature media, making it an ideal choice for critical systems in power generation facilities.
Key Features & Technical Specifications
- Double Eccentric Design: Reduces seat wear and torque, ensuring bubble-tight shut-off even after thousands of cycles.
- API 609 Compliance: Meets international standards for face-to-face dimensions and pressure-temperature ratings.
- Versatile Material Options: Body available in cast steel, stainless steel, or other alloys; seat options include PTFE, RTFE, or metal for different media compatibility.
- Wide Size Range: From DN50 to DN1200 (2" to 48"), suitable for various pipeline diameters.
- High Pressure & Temperature Capability: Rated for Class 150 to Class 600, with temperature range from -29°C to +200°C (customizable upon request).
- Multiple Operation Modes: Manual, gear, pneumatic, or electric actuators available to fit your automation needs.
- Low Maintenance: Self-lubricating bearings and corrosion-resistant materials extend service intervals.
- Bi-directional Sealing: Ensures reliable performance in both flow directions.
Technical Parameters Table
| Parameter | Value |
|---|---|
| Standard | API 609 Category A / B |
| Size Range | DN50 – DN1200 (2" – 48") |
| Pressure Rating | Class 150, 300, 600 |
| Body Material | WCB, CF8, CF8M, or as per request |
| Seat Material | PTFE, RTFE, Metal (optional) |
| Temperature Range | -29°C to +200°C (customizable) |
| Operation | Manual / Gear / Pneumatic / Electric |
| Connection Type | Wafer, Lug, or Flanged |
Advantages for Power Plant Applications
- Steam Line Reliability: The double eccentric design minimizes thermal binding, ensuring smooth operation in high-temperature steam services.
- Water Line Efficiency: Low torque and tight shut-off reduce leakage and energy loss in cooling water and feedwater systems.
- Cost-Effective: Compared to gate or globe valves, our butterfly valve offers lower installation and maintenance costs while providing comparable performance.
- Customizable for Specific Needs: Options for high-temperature seats, extended stems, and special coatings are available upon request.
- Global Compliance: Designed to meet API 609, ASME B16.34, and ISO standards, ensuring acceptance in international projects.
Trusted by Global Customers
Shanghai Zhibang Valve Manufacture Co., Ltd. has been serving clients across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Europe since 2016. With an annual export value of US$1 million to US$1.5 million, our valves are used in power plants, petrochemical facilities, and water treatment systems worldwide. We are ISO9001 certified, and our products undergo strict quality control from raw material inspection to final testing. Our factory in Shanghai, China, is equipped with advanced machining centers and testing equipment, ensuring consistent quality and on-time delivery. We ship from Shanghai, Guangzhou, Hong Kong, and Beijing ports, offering flexible logistics solutions. Contact us today for a quote or technical consultation—we are ready to support your power plant projects with reliable valve solutions.
Frequently Asked Questions (FAQ)
-
Q: What is the difference between a double eccentric and a concentric butterfly valve?
A: A double eccentric valve has the stem offset from the disc center and the seat center, reducing friction and wear. This design provides tighter shut-off and longer life, especially in high-pressure and high-temperature applications like power plant steam lines. -
Q: Can this valve be used for both steam and water lines?
A: Yes, the API 609 Double Eccentric Butterfly Valve is designed for both steam and water services. However, for steam applications, we recommend metal seats or high-temperature PTFE seats. Please consult our technical team for specific media conditions. -
Q: What is the maximum pressure and temperature this valve can handle?
A: Standard models are rated for Class 150 to Class 600, with temperatures up to +200°C. Custom designs can handle higher temperatures (up to +400°C) with appropriate seat materials. Contact us for your specific requirements. -
Q: Do you offer actuators with the valve?
A: Yes, we can supply manual gearboxes, pneumatic actuators, and electric actuators. We can also integrate with your control system (e.g., 4-20mA, on/off). Please specify your actuator requirements when ordering. -
Q: What certifications do your valves have?
A: Our valves are manufactured under ISO9001 quality management system. They comply with API 609 and ASME B16.34 standards. Additional certifications like fire-safe or NACE can be provided upon request. -
Q: What is the typical lead time for this valve?
A: For standard sizes and materials, lead time is 15-30 working days. Custom orders may take 30-45 working days. We offer expedited shipping for urgent projects. -
Q: Can I get a sample before bulk order?
A: Yes, we accept sample orders. Sample cost and shipping will be discussed based on the size and quantity. For regular customers, sample cost may be refundable. -
Q: How do you ensure the quality of your valves?
A: We perform 100% pressure testing, seat leakage testing, and dimensional inspection per API 598 standards. Material certificates and test reports are provided with each shipment.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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