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Help CenterAPI 609 Marine Butterfly Valve With Standard Mill Test Report and Technical Support
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Shanghai Zhibang Valve Manufacture Co., Ltd., founded in 2016 and ISO9001 certified, is a reliable manufacturer specializing in high-quality valves for marine and industrial applications. Our API 609 Marine Butterfly Valve is designed to meet the rigorous demands of shipbuilding, offshore platforms, and ballast water systems. Each valve is supplied with a standard Mill Test Report (MTR) and backed by our professional technical support team, ensuring traceability, performance, and peace of mind for your marine projects.
This butterfly valve complies with the API 609 standard (Category A or B, depending on design), offering reliable shutoff and flow regulation in seawater, freshwater, and other marine fluids. With a compact wafer or lug style body, it integrates seamlessly into piping systems, saving space and weight. The valve features a robust disc and resilient seat design that delivers bubble-tight sealing, low torque operation, and long service life even in harsh marine environments.
Below are the key specifications and features of our API 609 Marine Butterfly Valve:
| Parameter | Details |
| Standard | API 609 (Category A / B) |
| Size Range | DN50 – DN1200 (2" – 48") |
| Body Material | Ductile Iron / Carbon Steel / Stainless Steel (CF8/CF8M) / Aluminum Bronze |
| Disc Material | Stainless Steel 316 / Ductile Iron + Nylon Coating / Aluminum Bronze |
| Seat Material | EPDM, NBR, Viton, or PTFE (customizable) |
| Pressure Rating | PN10/PN16/PN25 or Class 150/Class 300 |
| End Connection | Wafer, Lug, or Flanged (RF/FF) |
| Operation | Lever / Gearbox / Pneumatic / Electric actuator (optional) |
Product Features and Benefits:
- Bubble-tight shutoff: Resilient seat design ensures zero leakage in bidirectional flow, critical for marine safety.
- Corrosion resistance: Materials like stainless steel, aluminum bronze, and nylon-coated discs resist seawater and aggressive media.
- Low operating torque: Optimized disc profile reduces pressure drop and actuator size, saving energy and cost.
- Full traceability: Each valve comes with a Mill Test Report (MTR) certifying chemical and mechanical properties.
- Technical support: Our team assists with selection, installation, and troubleshooting via email or video call.
- Customizable: Actuation, coating, gearbox, and special materials available upon request.
Our manufacturing facility in Shanghai, China, has been producing valves since 2016, with an annual export value between US$1 million and US$1.5 million. We have shipped to markets including North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. Our ISO9001 quality management system ensures consistent production and inspection procedures. Every API 609 Marine Butterfly Valve undergoes hydrostatic and shell tests before leaving our factory, and we offer comprehensive documentation including the MTR and installation manual.
Choose Shanghai Zhibang Valve for your marine valve needs – we combine competitive pricing, reliable quality, and responsive technical support. Contact us today to request a quote or discuss your specific requirements. We ship from ports: Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring convenient logistics worldwide.
Frequently Asked Questions (FAQ)
Q1: What does "API 609" mean?
A: API 609 is the American Petroleum Institute standard for butterfly valves, covering design, materials, testing, and pressure-temperature ratings. Our valves comply with both Category A (semi-lug) and Category B (fully lug) configurations.
Q2: Is the Mill Test Report (MTR) included for every valve?
A: Yes, standard Mill Test Reports are provided for each valve, detailing chemical composition, mechanical properties, and pressure test results.
Q3: Can the valve be used in seawater?
A: Absolutely. We recommend materials like aluminum bronze disc, stainless steel body, and EPDM or Viton seat specifically for seawater and brackish water applications.
Q4: What actuation options are available?
A: We offer manual lever, gearbox, pneumatic, and electric actuators. The valve body is designed with ISO 5211 mounting pad for easy automation.
Q5: How do I know which seat material to choose?
A: The choice depends on fluid type and temperature. EPDM suits water and seawater, NBR for oil, Viton for chemicals, and PTFE for high-temperature services. Our technical support can help you select the best option.
Q6: What is your minimum order quantity (MOQ)?
A: For standard sizes, MOQ is 1 piece for sample orders. Mass production quantities are flexible – please contact us for details.
Q7: Do you provide technical support for installation?
A: Yes, our engineering team offers free technical support via email and video calls. We can also provide detailed installation drawings and manuals.
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