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API 609 Butterfly Valve in Duplex Stainless Steel With Electric or Pneumatic Actuator Options

API 609 Butterfly Valve in Duplex Stainless Steel With Electric or Pneumatic Actuator Options photo-1
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Product Spotlights

API 609 compliant Duplex Stainless Steel butterfly valve offering exceptional strength and corrosion resistance. Features flexible electric or pneumatic actuator options for automation. Ideal for harsh environments in oil & gas, chemical, and marine industries, ensuring reliable performance, long service life, and reduced maintenance costs. ISO9001 certified manufacturing.
Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Oil & Gas
Material:
Duplex Stainless Steel (e.g., UNS S32205/S31803)
Design Standard:
API 609
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Application Other, Oil & Gas
Material Duplex Stainless Steel (e.g., UNS S32205/S31803)
Design Standard API 609
Actuator Type Electric or Pneumatic (Optional)
Connection Type Wafer, Lug, Double Flange
Size Range 2 inch to 48 inch (DN50 to DN1200)
Pressure Rating Class 150 to Class 300
Seat Material PTFE, EPDM, FKM (Optional)
Operation Quarter-turn, On/Off or Modulating Control

As a leading manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable industrial valve solutions. Our API 609 Butterfly Valve in Duplex Stainless Steel, available with electric or pneumatic actuator options, is engineered for the most demanding applications where corrosion resistance, strength, and long-term performance are non-negotiable. This valve represents our commitment to delivering superior products that enhance operational safety and efficiency for our global clientele across diverse industries from oil & gas to chemical processing.

This high-performance butterfly valve is designed to meet the rigorous standards of API 609, ensuring superior structural integrity and sealing performance. The use of Duplex Stainless Steel provides an exceptional combination of high strength and excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, making it ideal for handling corrosive media like seawater, chlorides, and acidic solutions.

  • Superior Material Construction: The body, disc, and stem are crafted from Duplex Stainless Steel (UNS S32205/S31803), offering yield strength approximately double that of standard 316 stainless steel with outstanding corrosion resistance.
  • API 609 Compliance: Manufactured in strict accordance with API Standard 609 for butterfly valves, ensuring design, material, and testing conformity for critical service applications.
  • Flexible Actuation Solutions: Customers can choose between electric actuators for precise control and automation integration, or pneumatic actuators for rapid response and explosion-proof requirements in hazardous areas. Both options provide reliable quarter-turn operation.
  • Advanced Seat & Seal Design: Features a resilient seat (options include PTFE, EPDM, or FKM) that ensures bubble-tight shut-off and long service life, even under varying pressure and temperature conditions.
  • Robust Shaft Connection: Utilizes a strong, splined or keyed shaft-to-disc connection that minimizes backlash and ensures positive torque transmission, enhancing operational reliability and cycle life.
  • Versatile End Connections: Available in wafer, lug, or double flanged designs to suit different piping system requirements and facilitate easy installation and maintenance.

The valve's design offers significant advantages to end-users, including reduced maintenance costs due to its corrosion-resistant materials, minimized risk of unplanned downtime, and improved system safety. The actuator options allow for seamless integration into both new and existing automated control systems, enabling remote operation and process optimization.

Parameter Specification / Option
Size Range 2" to 48" (DN50 to DN1200)
Pressure Rating Class 150, Class 300
Temperature Range -20°C to 200°C (depending on seat material)
Body & Disc Material Duplex Stainless Steel (UNS S32205/S31803)
Stem Material Duplex Stainless Steel or 17-4PH
Seat Material PTFE, EPDM, FKM (Optional)
Actuator Supply Electric: 110V/220V AC, 24V DC; Pneumatic: 4-7 bar
Standards API 609, ASME B16.34, ISO 5752

Backed by our experience since 2016 and an annual export value reflecting consistent global trust, Shanghai Zhibang Valve serves major markets worldwide from North America to Southeast Asia. We ensure reliable shipment from key ports like Shanghai and Guangzhou. Choosing our API 609 Duplex Butterfly Valve means investing in a product built for durability, backed by ISO9001 certified manufacturing processes, and supported by a manufacturer dedicated to meeting your specific project requirements. Contact us today to discuss your application and receive a tailored solution.

Frequently Asked Questions (FAQ)

Q1: What are the main advantages of Duplex Stainless Steel over standard 316 Stainless Steel for this valve?
A1: Duplex Stainless Steel offers approximately twice the yield strength of 316 SS, along with significantly better resistance to chloride-induced stress corrosion cracking and pitting. This makes it more suitable for demanding environments like offshore platforms, chemical plants, and seawater applications, providing longer service life and reduced risk of failure.

Q2: Can this valve be used for both on/off and flow modulation control?
A2: Yes. When paired with the appropriate electric actuator (typically with modulating capability) or a pneumatic actuator with a positioner, this butterfly valve can perform precise flow modulation in addition to standard on/off service. The specific actuator selection should be based on your control requirements.

Q3: What is the significance of the API 609 standard?
A3: API 609 is a globally recognized standard published by the American Petroleum Institute specifically for butterfly valves. It defines requirements for design, materials, dimensions, testing, and inspection, ensuring the valve is suitable for critical industrial services, particularly in oil, gas, and petrochemical industries. Compliance indicates a higher level of quality and reliability.

Q4: How do I choose between an electric and a pneumatic actuator?
A4: The choice depends on your site conditions and needs. Electric actuators are preferred where electrical power is readily available, precise control and positioning are needed, or for integration with digital control systems. Pneumatic actuators are often chosen for their fast operation, simplicity, and intrinsic safety in explosive atmospheres where compressed air is available.

Q5: Are spare parts like seats and seals readily available?
A5: Yes. As the manufacturer, we maintain an inventory of common spare parts. The resilient seat is designed for replacement, extending the valve's service life. We recommend inquiring about maintenance kits when placing your order.

Q6: What is the typical delivery lead time for an order?
A6: Lead time varies based on valve size, actuator specification, and order quantity. Standard configurations typically have a shorter lead time. We provide estimated delivery schedules upon receipt of your detailed inquiry to ensure it aligns with your project timeline.

Q7: Can you provide valves with different end connections, such as butt-weld ends?
A7: While wafer, lug, and double flanged ends are standard, special end connections like butt-weld can be considered as a custom option. Please discuss your specific piping interface requirements with our sales team for a feasible solution.

Q8: Do you offer any testing or certification with the valve?
A8> Each valve undergoes routine factory tests, including shell tests and seat leak tests, as per API 609 and other applicable standards. Detailed test reports can be provided upon request. The valve is manufactured in an ISO9001 certified facility, ensuring consistent quality control.

Product Tags: Duplex Stainless Steel Butterfly Valve , API 609 Actuated Butterfly Valve , Electric Pneumatic Butterfly Valve

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Gold Verified Supplier
1Yr
Verified Business License
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001