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Help CenterAPI 609 Marine Butterfly Valve With 12-Month Full Warranty and MTR
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As a professional manufacturer with over eight years of industry experience, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance API 609 Marine Butterfly Valve. Engineered for demanding marine and offshore applications, this valve combines robust construction with reliable sealing to ensure safe and efficient fluid control in critical systems. We stand behind our product quality with a comprehensive 12-month full warranty and provide Material Test Reports (MTRs) for full traceability, giving you complete confidence in every component.
Our API 609 Butterfly Valves are designed to meet the stringent requirements of international standards, offering superior durability and leak-tight performance. Key features and benefits include:
- API 609 Compliance: Manufactured in strict accordance with API Standard 609 for butterfly valves, ensuring design, material, and testing integrity suitable for critical service.
- Robust Construction: Available in a variety of body and disc materials including carbon steel, stainless steel (CF8, CF8M), and duplex steel to withstand corrosive marine environments.
- Reliable Sealing: Features soft seats (PTFE, EPDM) for bubble-tight shut-off or optional metal seats for higher temperature applications.
- Versatile Operation: Can be fitted with manual hand levers, gear operators, or automated actuators (electric/pneumatic) for remote control and integration into shipboard automation systems.
- Compact & Lightweight Design: The wafer-style design provides significant space and weight savings compared to gate valves, a crucial advantage in marine installations.
- Low Maintenance: Simple design with fewer parts reduces the need for frequent maintenance, lowering lifecycle costs.
Below is a summary of typical technical specifications for our standard API 609 Marine Butterfly Valves:
| Parameter | Specification / Option |
|---|---|
| Design & Test Standard | API 609, API 598 |
| Size Range | 2" - 48" (DN50 - DN1200) |
| Pressure Class | Class 150, Class 300 |
| Connection Type | Wafer, Lug (Double Flange) |
| Body Materials | WCB, CF8, CF8M, Duplex 2205 |
| Disc Materials | SS304, SS316, CF8, CF8M, Duplex Steel |
| Seat Materials | PTFE, EPDM, NBR, Metal Seat (Inconel, Stellite) |
| Stem Material | Stainless Steel (17-4PH, 316), Monel |
| Operation | Lever, Gearbox, Electric Actuator, Pneumatic Actuator |
| Temperature Range | -20°C to 200°C (for soft seat); Higher with metal seat |
| Face-to-Face | Per API 609 / ASME B16.10 |
The valve's design offers significant advantages for end-users. Its bi-directional sealing capability ensures reliable performance regardless of flow direction. The low torque operation reduces the effort required for manual actuation and allows for smaller, more cost-effective actuators. For marine applications, its resistance to saltwater corrosion and compatibility with various shipboard fluids (ballast water, fuel oil, seawater cooling) makes it a versatile choice. The provision of MTRs ensures material pedigree, which is often a mandatory requirement for classification society approvals (e.g., ABS, DNV, LR).
Shanghai Zhibang Valve operates under an ISO9001 certified quality management system, a testament to our commitment to consistent manufacturing excellence. With an annual export value ranging between US$1 million and US$1.5 million, our products have gained the trust of clients across diverse global markets, including North America, South America, Europe, Southeast Asia, Africa, and the Middle East. Our strategic location in Shanghai, with access to major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, enables efficient and reliable logistics for your supply chain. Choose our API 609 Marine Butterfly Valve for a solution that delivers durability, compliance, and peace of mind backed by our solid warranty and proven export track record. Contact us today to discuss your specific requirements or to request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: What does "API 609" mean for this butterfly valve?
A1: API 609 is a standard published by the American Petroleum Institute specifically for butterfly valves. It defines requirements for design, materials, dimensions, pressure-temperature ratings, and testing. Valves built to this standard are recognized for their reliability in industrial and marine services.
Q2: Is this valve suitable for seawater service?
A2: Yes, when ordered with appropriate material combinations. We recommend body and disc materials like Duplex Stainless Steel (2205/2507) or Super Duplex, and stems made of Monel or high-grade stainless steel, which offer excellent resistance to chloride-induced stress corrosion cracking common in seawater.
Q3: What is included in the "12-Month Full Warranty"?
A3: Our warranty covers defects in materials and workmanship under normal use for a period of 12 months from the date of shipment. It includes repair or replacement of the defective valve or components. The warranty is contingent on proper installation, operation, and maintenance as per our guidelines.
Q4: What is an MTR, and why is it important?
A4: MTR stands for Material Test Report (also called Mill Test Report). It is a certified document from the material mill that provides the chemical composition and mechanical properties of the raw materials (e.g., plates, forgings, bars) used to manufacture the valve. It is crucial for quality assurance, traceability, and for obtaining approvals from marine classification societies.
Q5: Can this valve be automated?
A5: Absolutely. Our API 609 butterfly valves are designed to be compatible with a wide range of electric or pneumatic actuators. We can supply the valve as an assembly with your chosen actuator, pre-mounted and tested, ready for installation.
Q6: What is the difference between Wafer and Lug type connections?
A6: A Wafer-style valve is installed between two pipeline flanges using long bolts that pass through both flanges. A Lug-style valve has threaded inserts (lugs) on both sides, allowing it to be bolted to each flange independently. Lug valves are often preferred for end-of-line service or where one side may need to be disconnected.
Q7: Do you offer fire-safe design options?
A7: Yes, we can provide valves with fire-safe design per API 607/API 6FA or ISO 10497 standards. This typically involves a secondary metal seat that provides a seal in the event a fire destroys the primary soft seat.
Q8: What information do I need to provide to get a quote?
A8: To ensure an accurate quotation, please provide: Size (NPS/DN), Pressure Class, Body/Disc/Seat/Stem material preferences, Connection Type (Wafer/Lug), Operation method (Manual/Automated), Temperature and Media details, and any specific standards or certifications required (e.g., NACE MR0175, specific class society approval).
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