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As a specialized manufacturer with a strong commitment to maritime and industrial fluid control, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our API 609 Lug Type Marine Butterfly Valve, a cornerstone solution for demanding offshore and shipbuilding applications. Engineered for reliability, safety, and performance in corrosive marine environments, this valve represents our dedication to providing OEM partners and direct clients with components that meet the highest industry standards. Our focus on precision manufacturing and rigorous quality control ensures that every valve delivers consistent shut-off and flow regulation, contributing to the operational integrity of your marine systems. With an annual export value reflecting our global reach and client trust, we offer not just a product, but a partnership built on technical expertise and reliable supply.
This Lug Type Butterfly Valve is specifically designed to comply with the stringent requirements of API Standard 609 for butterfly valves, ensuring it meets the performance and testing criteria expected in critical service. The lugged design is a key feature, allowing easy installation and removal from a piping system without disturbing the adjacent pipe sections, which is invaluable for maintenance and system modifications onboard vessels and offshore platforms.
Core Product Features & Technical Advantages:
- Rugged Construction for Marine Duty: Manufactured from materials selected for seawater and offshore environment resistance, such as cast steel with epoxy coating, duplex stainless steel, or aluminum bronze. This ensures exceptional corrosion resistance and a long service life even under constant exposure to saltwater, humidity, and atmospheric salts.
- Superior Sealing Performance: Equipped with a precision-machined disc and a resilient seat (options include PTFE, EPDM, NBR). The design ensures bubble-tight shut-off when required, minimizing leakage and protecting sensitive downstream equipment. The seat is often replaceable, extending the valve's lifecycle and reducing long-term ownership costs.
- Robust Lugged Body Design: The lug-type body features threaded inserts or through-holes on both sides of the valve. This allows the valve to be bolted directly between two pipe flanges using separate sets of bolts, making it a preferred choice for end-of-line service or where isolation for maintenance is frequent. It provides a secure, dead-end capable connection.
- Versatile Actuation Options: Available with a standard lever lock for manual operation, a gear operator for high-torque applications on larger sizes, or as a ready-to-mount unit for electric or pneumatic actuators. This flexibility allows for integration into automated ship control systems, remote-operated platforms, or manual local control stations.
- Optimized Flow Characteristics: The disc design minimizes pressure drop across the valve when in the fully open position, promoting energy-efficient fluid transport of seawater, ballast, fuel, lubricants, or other shipboard fluids.
- Fire-Safe Design Available: Optional fire-safe designs are available, meeting API 607/API 6FA or similar standards, which is a critical requirement for valves handling flammable fluids in engine rooms and other hazardous areas on ships and offshore installations.
Key Technical Specifications:
| Design Standard | API 609, ASME B16.34 |
| Face-to-Face | Per ASME B16.10 / API 609 |
| Flange Standards | ASME B16.5 Class 150/300, JIS, DIN, BS, GB (customizable) |
| Temperature Range | Standard: -20°C to +150°C. Extended ranges available with special seat materials. |
| Test & Inspection | Hydrostatic shell test, seat leakage test per API 598/API 609. |
| Typical Applications | Seawater cooling systems, ballast systems, bilge lines, fuel oil lines, firefighting systems, tank venting, general service on tankers, cargo ships, FPSOs, and offshore platforms. |
Choosing our valve means investing in a component that enhances system safety and reduces maintenance downtime. The OEM manufacturing capability allows for customization of dimensions, materials, coatings (like FBE or zinc), and actuation packages to fit your specific design prints and project requirements perfectly. This level of adaptability ensures seamless integration into your existing or new-build marine systems.
Our commitment to quality is underpinned by our ISO9001 certification, which governs our entire manufacturing process from material sourcing to final testing. With established export channels through major ports like Shanghai, Guangzhou, and Hong Kong, we have successfully supplied our API 609 valves to markets across North and South America, Europe, Southeast Asia, Africa, and Oceania. This global footprint, supported by an annual export value in the range of US$1-1.5 Million, is a testament to the reliability and acceptance of our products worldwide. We combine this proven track record with competitive pricing and flexible OEM terms to deliver a valve solution that meets your technical, logistical, and budgetary needs. Contact us today to discuss your project specifications or to request a detailed quotation.
Frequently Asked Questions (FAQ):
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Q: What is the main advantage of a lug-type butterfly valve over a wafer-type for marine use?
A: The lug-type design allows the valve to be installed using two separate sets of bolts, one for each connecting flange. This provides a structurally independent connection, making it suitable for end-of-line service (where one side is open) and easier to remove for maintenance without dismantling the entire pipe section, which is highly valuable in the confined spaces of a ship. -
Q: Can this valve be used for both on/off service and flow regulation?
A: While primarily designed for reliable isolation (on/off), the valve can be used for throttling or flow regulation within its design parameters. However, for frequent or precise throttling applications, specifying a disc and seat material combination suitable for such duty is recommended. -
Q: What material options are available for the body and disc to handle seawater?
A: Common seawater-resistant materials include Cast Steel with epoxy or paint coating, Duplex Stainless Steel (UNS S31803/S32205), and Aluminum Bronze (e.g., C95800). The choice depends on the specific fluid chemistry, temperature, and required service life. -
Q: Do you offer fire-safe versions of this API 609 valve?
A: Yes, we offer optional fire-safe designs. These valves incorporate secondary metal seals and are tested to relevant standards (like API 607/6FA), ensuring they maintain sealing integrity in the event of a fire, which is crucial for safety-critical lines. -
Q: What is your typical lead time for OEM orders?
A: Lead times vary based on order quantity, material specifications, and customization level. Standard configurations typically have shorter lead times. We provide accurate production schedules upon receipt of detailed specifications. -
Q: Can the valves be supplied with actuators for automated systems?
A: Absolutely. We can supply the valves as manual units (lever or gear) or as complete packages with electric, pneumatic, or hydraulic actuators from reputable brands. We ensure proper mounting and interface compatibility. -
Q: What documentation is provided with the valves?
A> Standard documentation includes a Material Test Report (MTR/Certificate of Conformity), hydrostatic test report, and a detailed packing list. Additional certifications, such as NDT reports or third-party inspection reports, are available upon request. -
Q: How do you ensure quality control during manufacturing?
A> Our ISO9001-certified quality management system covers all stages. This includes incoming material inspection, in-process checks during machining and assembly, and final testing (shell and seat tests) per API 598/609 standards before shipment.
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