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Help CenterDN80-DN1000 Marine Hydraulic Butterfly Valve for Ballast Water System, PN0.6-2.5MPa
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As a professional manufacturer with a solid foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in delivering high-performance fluid control solutions for demanding marine applications. Our DN80-DN1000 Marine Hydraulic Butterfly Valve is engineered specifically for ballast water systems, where reliability under pressure and precise flow control are non-negotiable. Designed to withstand the rigorous PN0.6-2.5MPa pressure range, this valve offers a robust and efficient solution for managing large-volume seawater transfer, ensuring operational safety and system integrity on board vessels. We combine certified manufacturing processes with a deep understanding of maritime requirements to provide valves that meet the exacting standards of shipbuilders and operators worldwide.
The core value of this valve lies in its ability to provide fail-safe, remote operation in critical ballast water management. The hydraulic actuation ensures powerful and responsive control even for the largest valve sizes up to DN1000, making it suitable for main ballast lines. Its design prioritizes durability against corrosive seawater and consistent performance across the specified pressure spectrum.
Detailed Features & Technical Advantages:
- Optimized for Marine Environment: Materials and coatings are selected for superior corrosion resistance against seawater, extending service life and reducing maintenance.
- Precise Hydraulic Control: The hydraulic actuator delivers high torque output, enabling smooth and accurate positioning of the disc for precise flow regulation, which is crucial for ballast tank stability.
- Robust Pressure Handling: Engineered for a working pressure range from PN0.6MPa to PN2.5MPa, the valve maintains a tight seal and structural integrity under varying system pressures.
- Bidirectional Sealing: The valve design ensures effective sealing in both flow directions, preventing backflow and ensuring system isolation when required.
- Compact & Space-Saving Design: Compared to gate valves of similar diameter, the butterfly design offers a significantly lighter weight and shorter face-to-face length, simplifying installation in space-constrained shipboard piping.
- Low Maintenance Operation: The simple yet robust design with minimal moving parts reduces the need for frequent upkeep, while accessible components facilitate easier inspection and service.
Key Technical Specifications:
| Parameter | Specification / Range |
| Valve Size (Nominal Diameter) | DN80, DN100, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600, DN700, DN800, DN900, DN1000 |
| Pressure Rating (PN) | PN0.6, PN1.0, PN1.6, PN2.5 MPa (customizable) |
| Connection Standards | Wafer, Lug, or Flanged per ISO, ANSI, JIS, DIN, GB standards |
| Body Material Options | Cast Steel (WCB), Ductile Iron, Stainless Steel (CF8/CF8M) |
| Disc Material Options | Stainless Steel (304/316), Nickel-Plated, Epoxy-Coated Carbon Steel |
| Seat Material Options | EPDM, NBR, PTFE, or Metal Seat for high-temp applications |
| Actuator Type | Double-acting or Spring-return Hydraulic Actuator |
| Operating Temperature | -20°C to +120°C (dependent on seat material) |
Benefits for Your Ballast Water System:
- Enhanced System Reliability: Reduces the risk of valve failure during critical ballasting/deballasting operations, contributing to vessel safety.
- Improved Operational Efficiency: Fast opening/closing cycles and precise control help optimize ballast water transfer times.
- Reduced Lifecycle Cost: Durable construction and corrosion-resistant materials lower the total cost of ownership through extended service intervals.
- Compliance Support: Robust construction aids in maintaining system integrity, supporting overall compliance with ballast water management regulations.
- Global Compatibility: Available in multiple connection standards and sizes, the valve can be integrated into both new builds and retrofit projects worldwide.
Trust & Proven Global Reach:
Shanghai Zhibang Valve operates under an ISO9001-certified quality management system, ensuring consistent product quality and reliable performance from raw material to finished valve. With an annual export value ranging between US$1 Million and US$1.5 Million, our products have gained trust across diverse and demanding markets, including North America, South America, Europe, Southeast Asia, Africa, and Oceania. We ship efficiently from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery to your project site. This extensive global footprint and proven export capability underscore our commitment to being a reliable partner for your marine valve needs. Choose our hydraulic butterfly valve for a balance of performance, durability, and value in your ballast water system.
Frequently Asked Questions (FAQ):
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Q: Is this valve suitable for seawater applications beyond ballast water systems?
A: Yes, absolutely. While optimized for ballast water, its corrosion-resistant materials and robust design make it suitable for various seawater services, including cooling water, firefighting, and general seawater piping onboard. -
Q: Can you provide the hydraulic power unit (HPU) along with the valve?
A: The valve actuator is designed to work with standard marine hydraulic systems. We can offer the complete valve and actuator package. Specifications for the required hydraulic supply (pressure, flow rate) are provided, and sourcing of the central HPU can be coordinated based on your system design. -
Q: What is the lead time for a DN800 valve with a specific pressure rating?
A: Lead times vary based on specification complexity, material availability, and order quantity. Generally, for standard configurations, production lead time is competitive. We recommend contacting our sales team with your detailed requirements for an accurate schedule. -
Q: How does the hydraulic actuator perform in case of a hydraulic system failure?
A: For critical applications, we highly recommend specifying a spring-return (fail-safe) hydraulic actuator option. In the event of hydraulic pressure loss, the built-in springs will automatically drive the valve to a predefined safe position (open or closed). -
Q: Are the valves tested before shipment?
A: Yes, every valve undergoes rigorous testing, which typically includes shell strength test, seat leakage test, and operational test for the actuator. Detailed test certificates are available upon request. -
Q: Do you offer different seat materials, and how do I choose?
A: We offer EPDM, NBR, PTFE, and metal seats. EPDM/NBR are excellent for standard seawater temperatures, PTFE offers wider chemical compatibility and lower friction, while metal seats are for high-temperature or abrasive service. Our engineers can assist in selection based on your fluid and operating conditions. -
Q: Can the valves be customized for specific flange standards or face-to-face dimensions?
A: Yes, customization is a key strength. We can manufacture valves to meet specific international flange standards (ANSI, JIS, DIN, etc.) and can often accommodate non-standard face-to-face dimensions for retrofit projects. -
Q: What kind of after-sales support do you provide?
A: We provide comprehensive technical documentation, installation manuals, and spare parts lists. Our technical team is available for consultation. For major projects, on-site installation supervision can be arranged.
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