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Help CenterOffshore Marine Butterfly Valve API 609 Compliant, DN50-DN600 Size Range Available
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Welcome to Shanghai Zhibang Valve Manufacture Co., Ltd. – your trusted partner for high-performance flow control solutions. As a professional manufacturer since 2016, we specialize in producing offshore marine butterfly valves that fully comply with API 609 standards. Our DN50 to DN600 size range butterfly valves are engineered to withstand harsh marine environments, delivering reliable isolation and regulation for shipboard systems, offshore platforms, and ballast water treatment applications. Backed by ISO9001 quality management system, each valve undergoes rigorous testing to ensure long service life and leak-free performance.
Our API 609 compliant butterfly valve is designed with advanced features for marine use:
- Double eccentric or concentric design (optional) for reduced wear and consistent sealing.
- Corrosion-resistant materials: body available in ductile iron, carbon steel, or stainless steel; disc in stainless steel or nickel-plated ductile iron.
- Versatile seat options: EPDM for seawater, NBR for oil, PTFE for chemicals, and Viton for high-temperature fluids.
- Bidirectional sealing capability up to full rated pressure, with optional zero-leakage performance.
- Wide range of actuators: manual lever/gearbox, pneumatic, or electric – all customizable for remote or automated control.
- Compliance with international standards: API 609, ISO 17292, and applicable marine classification society requirements (upon request).
Technical Specifications (typical):
| Parameter | Details |
|---|---|
| Size Range | DN50 – DN600 (2” – 24”) |
| Pressure Rating | PN10, PN16, PN25; ANSI Class 150/300 |
| Body Materials | Ductile Iron (GGG40), WCB Carbon Steel, CF8/CF8M Stainless Steel |
| Disc Materials | SS304, SS316, SS316L, 2507 Duplex, or Nickel Plated Ductile Iron |
| Seat Materials | EPDM, NBR, PTFE, Viton, Silicone |
| Connection Type | Wafer, Lug, Flanged (RF, FF) |
| Standard | API 609, ISO 17292, EN 593 |
| Top Flange | ISO 5211 compliant for direct actuator mounting |
Key advantages for marine applications:
- Robust anti-corrosion coating – internal/external epoxy coating (NSF approved optional) suitable for seawater immersion.
- Low torque and compact design – reduces actuator size and installation space on ships and platforms.
- Bubble-tight shutoff (depending on seat material) ensures zero leakage in critical ballast and fire-fighting systems.
- Ease of maintenance – unique seat replacement design allows quick field service without special tools.
- Full traceability – each valve is marked with API 609 identification and test pressure, with optional material certificates.
At Shanghai Zhibang Valve Manufacture Co., Ltd., we are committed to delivering quality and reliability. Our factory, established in 2016, has achieved an annual export value of US$1 – 1.5 million supplying to diverse markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, Middle East, and more. We ship from Shanghai, Guangzhou, Hong Kong, and Beijing ports, ensuring efficient logistics worldwide. All our marine butterfly valves are produced under ISO9001 certification, with strict quality control from raw material inspection to final hydrostatic and seat leak tests. We also offer custom engineering for special size, material, or actuation requirements – simply contact our technical team for tailored solutions.
Frequently Asked Questions (FAQ):
-
Q: Are these valves suitable for seawater ballast systems?
A: Yes, our butterfly valves can be supplied with EPDM or PTFE seats and stainless steel discs to resist corrosion from seawater. Optional duplex disc material is also available for extreme conditions. -
Q: Do you provide certificates of compliance or material test reports?
A: Absolutely. We can issue ISO9001 compliance, material certificates (EN 10204 3.1), hydrostatic test reports, and API 609 traceability documents upon request. -
Q: What is the typical lead time for DN50-DN600 valves?
A: For standard valves (ductile iron body, EPDM seat, manual lever), lead time is 15-20 working days. Custom materials or actuators may require 25-35 working days. Expedited options are available. -
Q: Can the valve be used for fire-fighting systems on ships?
A: Yes, when ordered with suitable seat material (e.g., PTFE with fire-safe design) and body material, our valves can meet fire-fighting standards. Please specify application requirements. -
Q: Are pneumatic and electric actuators compatible with your valves?
A: Yes, we offer complete actuator packages from reputable brands. The top flange conforms to ISO 5211, allowing direct mounting and easy installation. -
Q: Do you offer sample testing before bulk order?
A: Yes, we welcome sample orders for evaluation. A sample valve can be produced and delivered within 10-15 days (shipping extra). Bulk pricing depends on quantity. -
Q: What is the warranty period for your marine butterfly valves?
A: We offer a standard 12-month warranty from shipment date covering manufacturing defects. Extended warranty options are negotiable for large projects. -
Q: Can you customize the valve for a specific pressure rating or face-to-face dimension?
A: Yes, we can customize pressure ratings (e.g., ANSI 600) and face-to-face lengths according to your drawings or standards. Contact our engineering team for feasibility.
Choose Shanghai Zhibang Valve for your offshore and marine projects. With dedicated service, competitive pricing, and a proven track record across global markets, we are ready to supply reliable butterfly valves that meet your exact requirements. Contact us today for a quote or technical consultation.
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