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Help CenterAPI 609 Large Diameter Butterfly Valve, DN800-DN1200, Class150, Ductile Iron, Gear Operated, ABS NK Certified
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As a professional manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance API 609 Large Diameter Butterfly Valve series. Engineered for demanding industrial applications, this valve combines robust ductile iron construction with precise gear operation to deliver reliable flow control for large pipeline systems. Our extensive experience since 2016 in supplying global markets equips us to understand the critical requirements for valves in sectors like water treatment, oil & gas, and power generation.
This valve series is designed to meet the rigorous standards of API 609, ensuring dimensional interchangeability and performance reliability. The ABS NK certification provides additional assurance of its suitability for marine and offshore applications, a testament to its quality and safety.
Key Product Features & Technical Advantages:
- Robust Construction: The valve body and disc are manufactured from high-grade ductile iron, offering superior strength and durability compared to standard cast iron, with excellent resistance to pressure and mechanical stress.
- Precise Gear Operation: The gear operator ensures smooth and effortless opening and closing, even for large-diameter valves under high differential pressures, reducing operator fatigue and enabling precise flow modulation.
- Superior Sealing Performance: Utilizes a resilient seat (EPDM or NBR standard) that provides a bubble-tight seal, minimizing leakage and ensuring long-term service life in various media.
- Large Diameter Range: Specifically designed for DN800 to DN1200 pipelines, catering to the needs of main water lines, cooling water systems, and other large-scale industrial fluid handling.
- API 609 Compliance: Manufactured in strict accordance with API Standard 609 for butterfly valves, guaranteeing dimensional accuracy, material quality, and testing protocols for reliable performance.
- Versatile Applications: Suitable for a wide range of services including water, seawater, oil, gas, and other non-aggressive fluids in industries such as municipal water supply, power plants, chemical processing, and shipbuilding.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Product Design Standard | API 609 |
| Nominal Diameter (DN) | 800, 900, 1000, 1100, 1200 mm |
| Pressure Rating | Class 150 (PN16/20) |
| Body & Disc Material | Ductile Iron (GGG40/50) |
| Seat Material (Standard) | EPDM (for water) or NBR (for oil) |
| Stem Material | Stainless Steel (17-4PH or equivalent) |
| Operation Mode | Manual Gear Operator (Bevel Gear) |
| Connection Type | Wafer or Lug Type (Optional) |
| Face-to-Face Dimension | Per API 609 / ISO 5752 Series 14 |
| Temperature Range | -10°C to +120°C (with EPDM seat) |
| Certification | ABS NK Certified |
Benefits for Your Project:
- Reduced Maintenance: The durable materials and reliable gear mechanism minimize downtime and maintenance costs over the valve's lifecycle.
- Easy Installation & Operation: The compact wafer design (optional) saves space and weight, while the gearbox provides high mechanical advantage for easy manual control.
- Global Compliance: Meeting API 609 and holding ABS NK certification facilitates project approvals, especially in international marine, oil & gas, and infrastructure projects.
- Cost-Effective Solution: Offers a favorable balance between performance and cost for large-diameter applications compared to gate or ball valves.
With an annual export value ranging between US$1 Million and US$1.5 Million and a presence in key markets across North America, South America, Europe, Asia, Africa, and Oceania, Shanghai Zhibang has built a reputation for delivering reliable industrial valves. Our products are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. Choosing our API 609 Large Diameter Butterfly Valve means partnering with a manufacturer committed to quality, backed by ISO9001 processes, and dedicated to providing a valve solution that ensures system integrity, operational efficiency, and long-term value for your large-scale fluid control needs. Contact us today to discuss your specifications and receive a competitive quotation.
Frequently Asked Questions (FAQ):
Q1: What is the main advantage of a gear-operated butterfly valve over a lever-operated one for large sizes?
A: For large diameters (DN800+), the gear operator provides a significant mechanical advantage, making it possible to open and close the valve against high pipeline pressures with relative ease and without excessive force, which is impractical with a simple lever.
Q2: Can this valve be used for both isolation and throttling (flow regulation) services?
A: Yes. While excellent for on/off isolation, the precise control offered by the gear operator also allows for effective flow modulation or throttling in appropriate applications.
Q3: What does "ABS NK Certified" mean, and why is it important?
A: This certification indicates that the valve design, materials, and manufacturing process have been reviewed and approved by the American Bureau of Shipping (ABS) and Nippon Kaiji Kyokai (ClassNK). It is often a mandatory requirement for valves used in marine and offshore oil & gas installations.
Q4: Are flanged connections available for this valve series?
A: The standard design is wafer or lug type. However, flanged ends can be provided as a custom option. Please specify your connection requirement when inquiring.
Q5: What is the typical delivery lead time for an order of DN1000 valves?
A: Lead times vary based on order quantity and specific configuration. Generally, for standard configurations, production lead time is approximately 6-8 weeks. We recommend contacting our sales team for a precise schedule.
Q6: Do you offer different seat materials for aggressive media?
A: Yes. While EPDM and NBR are standard, other seat materials like Viton (FKM) or PTFE can be available upon request for handling specific chemicals or higher temperatures.
Q7: Is the gear operator suitable for future automation?
A: Absolutely. The manual gear operator can be easily replaced with an electric, pneumatic, or hydraulic actuator for automated operation, offering flexibility for future system upgrades.
Q8: What testing is performed on these valves before shipment?
A> Each valve undergoes rigorous testing including hydrostatic shell tests, seat leakage tests (air or water), and operational tests per API 609 standards to ensure performance and integrity.
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