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Help CenterMarine-Grade Butterfly Valve OEM Supplier Compliant With API 609 Standard
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Shanghai Zhibang Valve Manufacture Co., Ltd is proud to present our Marine-Grade Butterfly Valve, designed and manufactured in strict compliance with the API 609 Standard. Since 2016, we have been a dedicated OEM supplier serving global maritime industries, offering valves that withstand harsh marine environments—such as seawater corrosion, high humidity, and continuous vibration. Our valves are engineered for reliability, durability, and optimal flow control, making them the preferred choice for shipbuilding, offshore platforms, and port facilities.
As a factory with ISO9001 certification and annual export value exceeding US$1 million, we guarantee consistent quality and on-time delivery. We understand the critical role of a butterfly valve in ship systems—from ballast water management to cooling water and fire-fighting. Every valve we produce undergoes rigorous testing to meet API 609 requirements, ensuring bubble-tight shut-off and long service life.
Key Features & Technical Specifications
- Marine-Grade Corrosion Resistance: Available in materials like duplex stainless steel, bronze, and EPDM liners specifically selected for seawater applications.
- API 609 Compliance: Our valves meet the dimensional and design requirements of API 609 for butterfly valves, ensuring interchangeability and performance.
- Bi-Directional Sealing: Achieves zero leakage at rated pressure, ideal for dead-end service and shut-off applications.
- Double Offset Design: Reduces wear on the seat, provides smoother operation, and extends valve life compared to conventional concentric designs.
- Wide Size & Pressure Range: Available from DN50 (2") up to DN1200 (48"), with pressure ratings PN10, PN16, Class 150, and Class 300.
- Multiple End Connections: Wafer type, lug type, and flanged ends to suit various piping systems.
- Various Actuation Options: Manual lever, worm gear, pneumatic actuator, or electric actuator—all customizable to your system requirements.
- Tested & Certified: Every valve is hydrostatically and pneumatically tested per API 598 standards.
Technical Parameter Table (Sample)
| Parameter | Typical Value |
|---|---|
| Size Range | DN50 – DN1200 (2" – 48") |
| Body Material | Cast Iron / Ductile Iron / Stainless Steel (CF8, CF8M, 316L) |
| Disc Material | SS304, SS316, Duplex 2205, Bronze |
| Seat Lining | EPDM (standard for marine), PTFE, VITON, FKM |
| Pressure Rating | PN10/PN16; Class 150 / Class 300 |
| Temperature Range | -20°C to +120°C (depending on seat material) |
| Applicable Standards | API 609, API 598, ISO 5752, EN 558 |
| Testing | Hydrostatic (1.5x rated pressure), Shell & Seat leak test |
Advantages for Your Marine Applications
- Reduced Maintenance: The robust double-offset design and high-quality elastomer seats minimize the need for frequent replacement.
- Compact & Lightweight: Compared to gate or globe valves, our butterfly valves save space and weight on vessels and offshore platforms.
- Fast Operation: A 90° turn of the handle (or actuator) provides full open/close, enabling quick response in emergency systems.
- Excellent Flow Characteristics: Low pressure drop across the valve improves system efficiency.
- Customizable for OEM Projects: We offer tailor-made solutions including special materials, non-standard dimensions, and brand labeling to meet your specific requirements.
Trust & Track Record
Shanghai Zhibang Valve has been dedicated to valve manufacturing since 2016, exporting to North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our annual export value of US$1–1.5 million reflects consistent demand from shipyards, marine engineering companies, and OEM partners. We are ISO9001 certified, and our production process is regularly audited to ensure compliance. Each valve is individually serial-numbered and comes with a test certificate. With shipping ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely logistics worldwide.
By choosing our Marine-Grade Butterfly Valve, you are investing in reliable flow control backed by a manufacturer that understands the strict demands of the marine industry. We welcome OEM inquiries and are ready to support your project with samples, technical drawings, and responsive after-sales service. Contact us today for a quote or to discuss your custom requirements!
Frequently Asked Questions (FAQ)
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Q: What makes your valve “marine-grade”?
A: We use corrosion-resistant materials (e.g., duplex stainless steel, EPDM) and anti-corrosion coatings suitable for seawater environments. All valves are tested per marine industry requirements. -
Q: Is your valve compliant with API 609?
A: Yes, our butterfly valves fully comply with API 609 dimensional and design standards, and we can provide corresponding documents upon request. -
Q: Can you provide samples before mass production?
A: Absolutely. We offer sample valves upon request. Sample cost can be negotiated, and it will be deducted from the final order. -
Q: What is your minimum order quantity (MOQ)?
A: For standard sizes and materials, MOQ is typically 10 units. For custom OEM specifications, MOQ may be 50 units. Please contact us for details. -
Q: What certifications do you have?
A: We are certified under ISO9001:2015. Additional certifications such as DNV, Lloyd’s, or CCS can be requested as a special option, subject to cost and lead time. -
Q: What is the typical lead time?
A: For standard valves, production takes around 15–25 working days. Custom orders may require 30–45 days depending on complexity. -
Q: Can I get a valve with a pneumatic or electric actuator?
A: Yes, we offer complete valve-actuator assemblies with manual, pneumatic, or electric actuators, all tested together before shipment. -
Q: Do you support OEM branding?
A: Yes, we are an OEM supplier. We can produce valves with your logo, custom paint, and packaging as per your specifications.
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